Analysis

  • max time kernel
    145s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    12-02-2022 12:54

General

  • Target

    0000b2fef428e92dae29996f177423dbf82e49523eaf70d03bc698114ab5d859.exe

  • Size

    160KB

  • MD5

    6b60534ec20df1e8423bcdcad0c84a5a

  • SHA1

    217e86417141ee18d60759f55e0f973844459287

  • SHA256

    0000b2fef428e92dae29996f177423dbf82e49523eaf70d03bc698114ab5d859

  • SHA512

    1db010eff2ceb248dc1dd42fdd3693c5aada8e347b01cb57d9b4ade6b56e9ef74394491dc7ff76912460fc2324c5777ed41998f5a7ce8650a4a07d6129c20bde

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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
  • Drops file in Windows directory 8 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 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0000b2fef428e92dae29996f177423dbf82e49523eaf70d03bc698114ab5d859.exe
    "C:\Users\Admin\AppData\Local\Temp\0000b2fef428e92dae29996f177423dbf82e49523eaf70d03bc698114ab5d859.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3536
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1544
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0000b2fef428e92dae29996f177423dbf82e49523eaf70d03bc698114ab5d859.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2160
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:1060
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:4844
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1916

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    e696fe38cf189ffabeae3fb7069d0528

    SHA1

    dedd7246b806508008535eca3c2b82839df13b6d

    SHA256

    5d93c89ab32151db53c6630231dfa55c4fe74e62ea4d2fb10202f01e4955da5d

    SHA512

    254aae3086d822fe01482ae36f7f926b8f2f7e048b68573cc5fdac1474a22556a25ce41b4f07a6044067a847f09f44e3a84c7cc34ff7c588cb31fe6d09a4f0a0

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

    MD5

    e696fe38cf189ffabeae3fb7069d0528

    SHA1

    dedd7246b806508008535eca3c2b82839df13b6d

    SHA256

    5d93c89ab32151db53c6630231dfa55c4fe74e62ea4d2fb10202f01e4955da5d

    SHA512

    254aae3086d822fe01482ae36f7f926b8f2f7e048b68573cc5fdac1474a22556a25ce41b4f07a6044067a847f09f44e3a84c7cc34ff7c588cb31fe6d09a4f0a0

  • memory/4844-132-0x0000027298020000-0x0000027298030000-memory.dmp

    Filesize

    64KB

  • memory/4844-133-0x0000027298080000-0x0000027298090000-memory.dmp

    Filesize

    64KB

  • memory/4844-134-0x000002729A750000-0x000002729A754000-memory.dmp

    Filesize

    16KB