Overview

overview

10

Static

static

3

cerber.exe

windows7-x64

10

cerber.exe

windows10-2004-x64

10

cryptowall.exe

windows7-x64

9

cryptowall.exe

windows10-2004-x64

3

jigsaw.exe

windows7-x64

10

jigsaw.exe

windows10-2004-x64

10

Locky.exe

windows7-x64

10

Locky.exe

windows10-2004-x64

10

131.exe

windows7-x64

1

131.exe

windows10-2004-x64

3

Matsnu-MBR...3 .exe

windows7-x64

7

Matsnu-MBR...3 .exe

windows10-2004-x64

3

027cc450ef...d9.dll

windows7-x64

10

027cc450ef...d9.dll

windows10-2004-x64

10

027cc450ef...ju.dll

windows7-x64

10

027cc450ef...ju.dll

windows10-2004-x64

10

myguy.hta

windows7-x64

10

myguy.hta

windows10-2004-x64

10

svchost.exe

windows7-x64

7

svchost.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    13s
  • max time network
    15s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 22:15

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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
cerberdiscoveryevasionpersistenceprivilege_escalationransomware

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___JUN4_.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/B6EE-2D6F-C39F-0446-9127 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/B6EE-2D6F-C39F-0446-9127 2. http://p27dokhpz2n7nvgr.14ewqv.top/B6EE-2D6F-C39F-0446-9127 3. http://p27dokhpz2n7nvgr.14vvrc.top/B6EE-2D6F-C39F-0446-9127 4. http://p27dokhpz2n7nvgr.129p1t.top/B6EE-2D6F-C39F-0446-9127 5. http://p27dokhpz2n7nvgr.1apgrn.top/B6EE-2D6F-C39F-0446-9127 ----- Note! These are temporary addresses! They will be available for a limited amount of time! -----
URLs

http://p27dokhpz2n7nvgr.onion/B6EE-2D6F-C39F-0446-9127

http://p27dokhpz2n7nvgr.12hygy.top/B6EE-2D6F-C39F-0446-9127

http://p27dokhpz2n7nvgr.14ewqv.top/B6EE-2D6F-C39F-0446-9127

http://p27dokhpz2n7nvgr.14vvrc.top/B6EE-2D6F-C39F-0446-9127

http://p27dokhpz2n7nvgr.129p1t.top/B6EE-2D6F-C39F-0446-9127

http://p27dokhpz2n7nvgr.1apgrn.top/B6EE-2D6F-C39F-0446-9127

Signatures

  • Cerber

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

    ransomwarecerber
  • Cerber family
    cerber
  • Blocklisted process makes network request 1 IoCs
  • Contacts a large (1090) amount of remote hosts 1 TTPs

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

    discovery
  • Modifies Windows Firewall 2 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).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • 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
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall set allprofiles state on
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:808
    • C:\Windows\SysWOW64\netsh.exe
      C:\Windows\system32\netsh.exe advfirewall reset
      2⤵
      • Modifies Windows Firewall
      • Event Triggered Execution: Netsh Helper DLL
      • System Location Discovery: System Language Discovery
      PID:836
    • C:\Windows\SysWOW64\mshta.exe
      "C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___L3BV4NJ8_.hta"
      2⤵
      • Blocklisted process makes network request
      • System Location Discovery: System Language Discovery
      • Modifies Internet Explorer settings
      PID:324
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___JUN4_.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Opens file in notepad (likely ransom note)
      PID:1992
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2788
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im "cerber.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1952
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 1 127.0.0.1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

2
T1112

Credential Access

Discovery

Network Service Discovery

1
T1046

Remote System Discovery

1
T1018

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Replay Monitor

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Downloads

  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___JUN4_.txt
    Filesize

    1KB

    MD5

    819daa8f304979906f22c2ea5588595e

    SHA1

    7d6016d1bb05336e69edce4fb5a8573431b6f885

    SHA256

    6ccfbd9288322d53de503070609891b3cf4a8a1d130bf19d13a931fe087548c8

    SHA512

    c2e76ee1340f5c322075a6db0fc7bba48fb8c2b54def6fd6d0bef22d8a2e829cad69bf8f5ce2a63fbf1d60596e234957a9b563f2a95c317a9ccaaac8ad11a2e2

    Download Submit

  • C:\Users\Admin\Desktop\_R_E_A_D___T_H_I_S___L3BV4NJ8_.hta
    Filesize

    75KB

    MD5

    f2ab6eb3bb1e2f0574eb20ad71631141

    SHA1

    19a5d6a3bdd63674e81f144119e584ee62e589c0

    SHA256

    40e555552aa33b18568e32d513af6d82b9d6f1e726fd0bf0dc83efd8a4187230

    SHA512

    d1e62c2dd653b545224219077bd15f376f0901da3e9b3a6daf9c6a430858df0cb18fa4722f63aa992b1255cabfcb88454d801328dc7666293edc964168cf50d8

    Download Submit

  • memory/1640-1-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1640-0-0x0000000000220000-0x0000000000251000-memory.dmp

    Filesize

    196KB

    Download

  • memory/1640-2-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1640-5-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1640-87-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download

  • memory/1640-107-0x0000000000400000-0x0000000000435000-memory.dmp

    Filesize

    212KB

    Download