Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 11:57

General

  • Target

    cd6a182636d6726056705ee3cc1a18b1d7f2420b39af1b6cec2baab0b4baed7d.exe

  • Size

    288KB

  • MD5

    508136766c7ea2f26ef44ffd81a63bcb

  • SHA1

    0f7fefc95164729f34722fee9b752627b3236209

  • SHA256

    cd6a182636d6726056705ee3cc1a18b1d7f2420b39af1b6cec2baab0b4baed7d

  • SHA512

    d72736c719264a10b77f33953bb171cdf390ac624d3acfef4da401cd3f711606f43a245ab8e89c5c98512339f8d5002bfb51c3594ca364146cf83215a6f96a82

  • SSDEEP

    6144:Bo/sqyUU6zRcHhF4gXfA7kqtcYngjtlycJey498lY:Bqsq9U6zRcHMgvA7dtcagCHy498lY

Malware Config

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd6a182636d6726056705ee3cc1a18b1d7f2420b39af1b6cec2baab0b4baed7d.exe
    "C:\Users\Admin\AppData\Local\Temp\cd6a182636d6726056705ee3cc1a18b1d7f2420b39af1b6cec2baab0b4baed7d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4800
    • C:\Users\Admin\AppData\Local\Temp\cd6a182636d6726056705ee3cc1a18b1d7f2420b39af1b6cec2baab0b4baed7d.exe
      C:\Users\Admin\AppData\Local\Temp\cd6a182636d6726056705ee3cc1a18b1d7f2420b39af1b6cec2baab0b4baed7d.exe
      2⤵
      • Checks whether UAC is enabled
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1096
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\system32\explorer.exe"
        3⤵
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2396
        • C:\Windows\SYSTEM32\vssadmin.exe
          vssadmin.exe Delete Shadows /All /Quiet
          4⤵
          • Interacts with shadow copies
          PID:4864
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2196

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Deletion

2
T1107

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Impact

Inhibit System Recovery

2
T1490

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\uxyjomoreradapof\01000000
    Filesize

    288KB

    MD5

    37775c42b1390dab3cf9319f435ae042

    SHA1

    624048eb8c7549520ae7a59eba82f946ca299e8f

    SHA256

    21dc4258d72c363c39fa8e2cc95a79f6e73b7c13f8fd3264bc2d15568c4aaaa3

    SHA512

    e361af595c405d041f3e60c00d4ba163abba570bea22a21ec7938ccbb10f88775d850521a79a29b3d3ec8c3e98878d80fc40a998850c6330143bb882913d5633

  • memory/1096-132-0x0000000000000000-mapping.dmp
  • memory/1096-133-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1096-136-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1096-140-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/1096-143-0x0000000000400000-0x000000000043A000-memory.dmp
    Filesize

    232KB

  • memory/2396-137-0x0000000000000000-mapping.dmp
  • memory/2396-138-0x0000000000D40000-0x0000000000D7D000-memory.dmp
    Filesize

    244KB

  • memory/2396-144-0x0000000000D40000-0x0000000000D7D000-memory.dmp
    Filesize

    244KB

  • memory/2396-145-0x0000000000D40000-0x0000000000D7D000-memory.dmp
    Filesize

    244KB

  • memory/4800-134-0x00000000022B0000-0x00000000022B4000-memory.dmp
    Filesize

    16KB

  • memory/4864-142-0x0000000000000000-mapping.dmp