Analysis

  • max time kernel
    152s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:14

General

  • Target

    0aabb8923e97ce4256eff1305abb979be36923f83f94765ee28584035e2629cb.exe

  • Size

    92KB

  • MD5

    ba2ed1ae0d602dde340cbd16d1f8de85

  • SHA1

    5c675e54b0efaf6dc4d20f8e1acf337ffebce196

  • SHA256

    0aabb8923e97ce4256eff1305abb979be36923f83f94765ee28584035e2629cb

  • SHA512

    bd53de3528ff31f1351655712c51b757dd8029ddbe415f247dc65827c8456ee3404c9bf3db37c721381bdc428db8c517aa3b30bd4624eb8d2d789665227cec90

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 2 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 51 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\0aabb8923e97ce4256eff1305abb979be36923f83f94765ee28584035e2629cb.exe
    "C:\Users\Admin\AppData\Local\Temp\0aabb8923e97ce4256eff1305abb979be36923f83f94765ee28584035e2629cb.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3036
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1368
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0aabb8923e97ce4256eff1305abb979be36923f83f94765ee28584035e2629cb.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1396
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3244
  • 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:3368
  • 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:4040
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3140

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    7368eb46bf527e86451aba7cc1c40f04

    SHA1

    c92a06e220ad868c26b9efe08d9407ba334abd59

    SHA256

    40bb7507d87d18bd49ef8d3c38d4ad85b9e403cb8fcce70a2b056121ce0189a8

    SHA512

    4429039fb042dfcb41975dcb77717c037e69f3f908ea05b626fc4527bf107aa09c705a59306e304b93850a3f06f1651d0429b6675fb011afdec42193a071ddce

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

    7368eb46bf527e86451aba7cc1c40f04

    SHA1

    c92a06e220ad868c26b9efe08d9407ba334abd59

    SHA256

    40bb7507d87d18bd49ef8d3c38d4ad85b9e403cb8fcce70a2b056121ce0189a8

    SHA512

    4429039fb042dfcb41975dcb77717c037e69f3f908ea05b626fc4527bf107aa09c705a59306e304b93850a3f06f1651d0429b6675fb011afdec42193a071ddce