Cerber is a ransomware-type malware that infiltrates systems, encrypting various file types including .jpg, .doc, .raw, .avi, etc. Cerber adds a .cerber extension to each encrypted file. Following successful infiltration, Cerber demands a ransom payment to decrypt these files. It is stated that payment of the ransom must fall within the given time frame (seven days), otherwise the ransom amount will double.
When first run, Cerber will check to see if the victim is from a particular country. If the computer appears to be from any of the following countries, it will terminate itself and not encrypt the computer. If the victim is not from one of the above countries, Cerber will install itself in the %AppData%\{2ED2A2FE-872C- D4A0-17AC-E301404F1CBA}\folder and name itself after a random Windows executable. For example, when we performed our analysis of the ransomware it named itself autochk.exe. It will then configure Windows to automatically boot into Safe Mode with Networking on the next reboot.
Encryption process
Cerber can encrypt files in offline mode – it means it doesn’t need to fetch the key from the CnC server. Files that have been encrypted are fully renamed and appended with the extension typical for this ransomware: .cerber. Pattern of the name: [0-9a-zA-Z_-]{10}.cerber.
The Extension which are getting affected
.gif, .groups, .hdd, .hpp, .log, .m2ts, .m4p, .mkv, .mpeg, .ndf, .nvram, .ogg, .ost, .pab, .pdb, .pif, .png, .qed, .qcow, .qcow2, .rvt, .st7, .stm, .vbox, .vdi, .vhd, .vhdx, .vmdk, .vmsd, .vmx, .vmxf, .3fr, .3pr, .ab4, .accde, .accdr, .accdt, .ach, .acr, .adb, .ads, .agdl, .ait, .apj, .asm, .awg, .back, .backup, .backupdb, .bay, .bdb, .bgt, .bik, .bpw, .cdr3, .cdr4, .cdr5, .cdr6, .cdrw, .ce1, .ce2, .cib, .craw, .crw, .csh, .csl, .db_journal, .dc2, .dcs, .ddoc, .ddrw, .der, .des, .dgc, .djvu, .dng, .drf, .dxg, .eml, .erbsql, .erf, .exf, .ffd, .fh, .fhd, .gray, .grey, .gry, .hbk, .ibd, .ibz, .iiq, .incpas, .jpe, .kc2, .kdbx, .kdc, .kpdx, .lua, .mdc, .mef, .mfw, .mmw, .mny, .mrw, .myd, .ndd, .nef, .nk2, .nop, .nrw, .ns2, .ns3, .ns4, .nwb, .nx2, .nxl, .nyf, .odb, .odf, .odg, .odm, .orf, .otg, .oth, .otp, .ots, .ott, .p12, .p7b, .p7c, .pdd, .pem, .plus_muhd, .plc, .pot, .pptx, .psafe3, .py, .qba, .qbr, .qbw, .qbx, .qby, .raf, .rat, .raw, .rdb, .rwl, .rwz, .s3db, .sd0, .sda, .sdf, .sqlite, .sqlite3, .sqlitedb, .sr2, .srf, .srw, .st5, .st8, .std, .sti, .stw, .stx, .sxd, .sxg, .sxi, .sxm, .tex, .wallet, .wb2, .wpd, .x11, .x3f, .xis, .ycbcra, .yuv, .contact, .dbx, .doc, .docx, .jnt, .jpg, .msg, .oab, .ods, .pdf, .pps, .ppsm, .ppt, .pptm, .prf, .pst, .rar, .rtf, .txt, .wab, .xls, .xlsx, .xml, .zip, .1cd, .3ds, .3g2, .3gp, .7z, .7zip, .accdb, .aoi, .asf, .asp, .aspx, .asx, .avi, .bak, .cer, .cfg, .class, .config, .css, .csv, .db, .dds, .dwg, .dxf, .flf, .flv, .html, .idx, .js, .key, .kwm, .laccdb, .ldf, .lit, .m3u, .mbx, .md, .mdf, .mid, .mlb, .mov, .mp3, .mp4, .mpg, .obj, .odt, .pages, .php, .psd, .pwm, .rm, .safe, .sav, .save, .sql, .srt, .swf, .thm, .vob, .wav, .wma, .wmv, .xlsb,3dm, .aac, .ai, .arw, .c, .cdr, .cls, .cpi, .cpp, .cs, .db3, .docm, .dot, .dotm, .dotx, .drw, .dxb, .eps, .fla, .flac, .fxg, .java, .m, .m4v, .max, .mdb, .pcd, .pct, .pl, .potm, .potx, .ppam, .ppsm, .ppsx, .pptm, .ps, .r3d, .rw2, .sldm, .sldx, .svg, .tga, .wps, .xla, .xlam, .xlm, .xlr, .xlsm, .xlt, .xltm, .xltx, .xlw, .act, .adp, .al, .bkp, .blend, .cdf, .cdx, .cgm, .cr2, .crt, .dac, .dbf, .dcr, .ddd, .design, .dtd, .fdb, .fff, .fpx, .h, .iif, .indd, .jpeg, .mos, .nd, .nsd, .nsf, .nsg, .nsh, .odc, .odp, .oil, .pas, .pat, .pef, .pfx, .ptx, .qbb, .qbm, .sas7bdat, .say, .st4, .st6, .stc, .sxc, .sxw, .tlg, .wad, .xlk, .aiff, .bin, .bmp, .cmt, .dat, .dit, .edb, .flvv
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