Analysis

  • max time kernel
    163s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    12-02-2022 05:32

General

  • Target

    126c81128464e2eeabe48a9413fcfa8e01645a0b5a56cf0b6090d7c682964846.exe

  • Size

    36KB

  • MD5

    a78e82245103aca7f26f67355b280629

  • SHA1

    187674c7b37413b1ed49e80b46af468d41bfa0b3

  • SHA256

    126c81128464e2eeabe48a9413fcfa8e01645a0b5a56cf0b6090d7c682964846

  • SHA512

    fed17999ebb429d5f092d0143203653c80df9d08cacd33840368cb846932a0eee9edff40332638e9bb19c781eba71b20d8d5b7c203dcdac99e01b7d0dfdc7d07

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • 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 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\126c81128464e2eeabe48a9413fcfa8e01645a0b5a56cf0b6090d7c682964846.exe
    "C:\Users\Admin\AppData\Local\Temp\126c81128464e2eeabe48a9413fcfa8e01645a0b5a56cf0b6090d7c682964846.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4660
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:4752
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\126c81128464e2eeabe48a9413fcfa8e01645a0b5a56cf0b6090d7c682964846.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:568
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:4968
  • 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:648
  • 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:484

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    27567973b024cc15bfe3f9ff61a353f4

    SHA1

    e67c2b21e153dcf3efcfffea9595cee179d90d33

    SHA256

    4853a7ed2b8cb6eb8fc1959f5c7ee32d63ace2ac68896eff82d2b1943c9f4b53

    SHA512

    b9a8fd04cffa018d1ebe7c6c0a73dad13cb8573ca7d448410349bf860b9259237de216b42f32ab87c4bc0325c43c2793e3b8353070e493c01793ba126af36e69

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

    MD5

    27567973b024cc15bfe3f9ff61a353f4

    SHA1

    e67c2b21e153dcf3efcfffea9595cee179d90d33

    SHA256

    4853a7ed2b8cb6eb8fc1959f5c7ee32d63ace2ac68896eff82d2b1943c9f4b53

    SHA512

    b9a8fd04cffa018d1ebe7c6c0a73dad13cb8573ca7d448410349bf860b9259237de216b42f32ab87c4bc0325c43c2793e3b8353070e493c01793ba126af36e69

  • memory/648-132-0x00000221F9E20000-0x00000221F9E30000-memory.dmp

    Filesize

    64KB

  • memory/648-133-0x00000221F9E80000-0x00000221F9E90000-memory.dmp

    Filesize

    64KB

  • memory/648-134-0x00000221FC530000-0x00000221FC534000-memory.dmp

    Filesize

    16KB