Analysis

  • max time kernel
    136s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-10-2022 08:51

General

  • Target

    4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe

  • Size

    98KB

  • MD5

    8946d4b46f5028f7c7e6c1f25941d5a0

  • SHA1

    18349c8b71169f43d3ea4553af3c381af52ec693

  • SHA256

    4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a

  • SHA512

    de514410c424e69bc24895ea6c7cde5010954398bccabff914b9665a39d73965f094a5835dd84a0697d47d7eafec72127e9be20b82d41bb83e8d41f4c28ddc9d

  • SSDEEP

    1536:XQFl29mEkE0L1rDEKrxZKF2zf9g2Pl7W/MwbxMX+ees52z30rtrduxzuB:429DkEGRQixVSjLaes5G30B+G

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe
    "C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4560
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:4728
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\4fc35728b5af0f8ca841c817941806a6f4eaf790d0be0f66c6e1f103d4c4458a.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:432
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:4244

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    Filesize

    98KB

    MD5

    cf39c482f088e22b48e824f318afb5bd

    SHA1

    d923224f77df7eae20c78a7e5e5c5bd7e28d95dd

    SHA256

    39d47874f844c107085fa78add0c0c52d3c2e89193cf0a95cf8789373a228bef

    SHA512

    44d5b71ce8acb8567537b6a98aa72311c3f13d4e8308821967b4ead2fe862364fe3b328ae6abb8822cbb5837aaf35df6eaaab7ae1f335ad0cdca513abf07254f

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    Filesize

    98KB

    MD5

    cf39c482f088e22b48e824f318afb5bd

    SHA1

    d923224f77df7eae20c78a7e5e5c5bd7e28d95dd

    SHA256

    39d47874f844c107085fa78add0c0c52d3c2e89193cf0a95cf8789373a228bef

    SHA512

    44d5b71ce8acb8567537b6a98aa72311c3f13d4e8308821967b4ead2fe862364fe3b328ae6abb8822cbb5837aaf35df6eaaab7ae1f335ad0cdca513abf07254f

  • memory/432-135-0x0000000000000000-mapping.dmp
  • memory/4244-136-0x0000000000000000-mapping.dmp
  • memory/4728-132-0x0000000000000000-mapping.dmp