Overview

overview

10

Static

static

3

cerber.exe

windows7-x64

10

cerber.exe

windows10-2004-x64

10

Locky.exe

windows7-x64

10

Locky.exe

windows10-2004-x64

10

26b4699a7b...39.exe

windows7-x64

6

26b4699a7b...39.exe

windows10-2004-x64

6

4c1dc73791...5c.exe

windows7-x64

6

4c1dc73791...5c.exe

windows10-2004-x64

6

683a09da21...96.exe

windows7-x64

10

683a09da21...96.exe

windows10-2004-x64

5

unpacked.exe

windows7-x64

10

unpacked.exe

windows10-2004-x64

10

Resubmissions

14-05-2023 19:15

230514-xydc6sdc98 10

Analysis

  • max time kernel
    100s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    14-05-2023 19:15

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General

  • Target

    cerber.exe

  • Size

    604KB

  • MD5

    8b6bc16fd137c09a08b02bbe1bb7d670

  • SHA1

    c69a0f6c6f809c01db92ca658fcf1b643391a2b7

  • SHA256

    e67834d1e8b38ec5864cfa101b140aeaba8f1900a6e269e6a94c90fcbfe56678

  • SHA512

    b53d2cc0fe5fa52262ace9f6e6ea3f5ce84935009822a3394bfe49c4d15dfeaa96bfe10ce77ffa93dbf81e5428122aa739a94bc709f203bc346597004fd75a24

  • SSDEEP

    6144:yYghlI5/u8f1mr+4RJ99MpDa52RX5wRDhOOU0qsR:yYKlYmDXEpDHRXP01

Score
10/10
cerberdiscoveryevasionransomware

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___CH3Y5_.txt

Family

cerber

Ransom Note
CERBER RANSOMWARE ----- YOUR DOCUMENTS, PH0TOS, DATABASES AND OTHER IMPORTANT FILES HAVE BEEN ENCRYPTED! ----- The only way to decrypt y0ur files is to receive the private key and decryption program. To receive the private key and decryption program go to any decrypted folder, inside there is the special file (*_READ_THIS_FILE_*) with complete instructions how to decrypt your files. If you cannot find any (*_READ_THIS_FILE_*) file at your PC, follow the instructions below: ----- 1. Download "Tor Browser" from https://www.torproject.org/ and install it. 2. In the "Tor Browser" open your personal page here: http://p27dokhpz2n7nvgr.onion/00FB-3C52-0C83-0446-98BF Note! This page is available via "Tor Browser" only. ----- Also you can use temporary addresses on your personal page without using "Tor Browser". ----- 1. http://p27dokhpz2n7nvgr.12hygy.top/00FB-3C52-0C83-0446-98BF 2. http://p27dokhpz2n7nvgr.14ewqv.top/00FB-3C52-0C83-0446-98BF 3. http://p27dokhpz2n7nvgr.14vvrc.top/00FB-3C52-0C83-0446-98BF 4. http://p27dokhpz2n7nvgr.129p1t.top/00FB-3C52-0C83-0446-98BF 5. http://p27dokhpz2n7nvgr.1apgrn.top/00FB-3C52-0C83-0446-98BF ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://p27dokhpz2n7nvgr.onion/00FB-3C52-0C83-0446-98BF

http://p27dokhpz2n7nvgr.12hygy.top/00FB-3C52-0C83-0446-98BF

http://p27dokhpz2n7nvgr.14ewqv.top/00FB-3C52-0C83-0446-98BF

http://p27dokhpz2n7nvgr.14vvrc.top/00FB-3C52-0C83-0446-98BF

http://p27dokhpz2n7nvgr.129p1t.top/00FB-3C52-0C83-0446-98BF

http://p27dokhpz2n7nvgr.1apgrn.top/00FB-3C52-0C83-0446-98BF

Signatures

  • Cerber

    Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

    ransomwarecerber
  • Blocklisted process makes network request 5 IoCs
  • Contacts a large (1095) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

    discovery
  • Modifies Windows Firewall 1 TTPs 2 IoCs
    evasion
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 38 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 20 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Kills process with taskkill 1 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cerber.exe
    "C:\Users\Admin\AppData\Local\Temp\cerber.exe"
    1⤵
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1408
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall set allprofiles state on
      2⤵
      • Modifies Windows Firewall
      PID:1560
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall reset
      2⤵
      • Modifies Windows Firewall
      PID:860
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___SG6VEI_.hta"
      2⤵
      • Blocklisted process makes network request
      • Modifies Internet Explorer settings
      PID:1784
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___CH3Y5_.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:1948
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im "cerber.exe"
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1760
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 1 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:316

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___CH3Y5_.txt
    Filesize

    1KB

    MD5

    6ca9e6b8b586ec7bc0088e8d4b1406b0

    SHA1

    31671646949a869e1933935498a26cb68fa9c145

    SHA256

    73eba40b0f30dfaa8da5e0d566e06b8cba4977185c23968ed82c703243424b80

    SHA512

    d4b1a11f41da90bb92aa91402328bfb65ec859a23610388685977a0d8babd6e78809a2742f7fad7f4a78ddcd64c2df7bd54db8ece583746635d0db77fcbbe297

    Download Submit

  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___SG6VEI_.hta
    Filesize

    75KB

    MD5

    1caf54d8d3b2dc311de8fb6a3b19888d

    SHA1

    430dbb6b14781f499f2d154091e77e205a186780

    SHA256

    5389bb774d0ca8cf240edc7c6160c46ab018353fe637a99a20bc9cc5ea308dc6

    SHA512

    746de35372383abd4516dde44a2a85c93c35a05a5a8f1e4edd56380ba3b197da238730f44a69da1a12a729d2bdfb4f5385e86b75920e9c8f84b332d35706c6d0

    Download Submit

  • memory/1408-54-0x0000000000220000-0x0000000000251000-memory.dmp

    Filesize

    196KB

    Download

  • memory/1408-55-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1408-56-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1408-59-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1408-151-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1408-178-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download