Analysis

  • max time kernel
    159s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:11

General

  • Target

    0514763d49c6070d408b6e80cad6e5c264a24b44471977305301eeb8dec4831a.exe

  • Size

    188KB

  • MD5

    bfd2124caa36df62e3fe57ca21f36e8e

  • SHA1

    37b2b42a4a072dc47ff3968e021d59e5e02c704d

  • SHA256

    0514763d49c6070d408b6e80cad6e5c264a24b44471977305301eeb8dec4831a

  • SHA512

    f9ce3cfb028a8b9921bccbccb570869ce1da9baab07fc546e2d8a1e97763bd6cc1ab891a53b223da0518e0b168451c8456fd6775da9b9e693f400d7747a88397

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 IoCs
  • suricata: ET MALWARE SUSPICIOUS UA (iexplore)

    suricata: ET MALWARE SUSPICIOUS UA (iexplore)

  • suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

    suricata: ET MALWARE Sakula/Mivast RAT CnC Beacon 1

  • 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
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 50 IoCs
  • 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\0514763d49c6070d408b6e80cad6e5c264a24b44471977305301eeb8dec4831a.exe
    "C:\Users\Admin\AppData\Local\Temp\0514763d49c6070d408b6e80cad6e5c264a24b44471977305301eeb8dec4831a.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1812
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1040
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0514763d49c6070d408b6e80cad6e5c264a24b44471977305301eeb8dec4831a.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2204
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3500
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1328
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:2296
  • 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:2984

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    8e2173b5f7b457987f31fc2ce9aea3fc

    SHA1

    67a8d6a35d9c30d57eb1cfdb938ebcd5ea98f074

    SHA256

    4007b58335107ed569a2c5a18573fc4bf66b276e7b5e927941016d89c0a46433

    SHA512

    5a61a7794ce097936dd6eae5dd82573a4b45e73b3c3809b151465fdb72fdf1dcfcdfb9eb5caa5633275693321cd45acfa27590d4ec8ddbfc178a748dcd6d36bf

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    8e2173b5f7b457987f31fc2ce9aea3fc

    SHA1

    67a8d6a35d9c30d57eb1cfdb938ebcd5ea98f074

    SHA256

    4007b58335107ed569a2c5a18573fc4bf66b276e7b5e927941016d89c0a46433

    SHA512

    5a61a7794ce097936dd6eae5dd82573a4b45e73b3c3809b151465fdb72fdf1dcfcdfb9eb5caa5633275693321cd45acfa27590d4ec8ddbfc178a748dcd6d36bf

  • memory/1040-136-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/1812-135-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB