Analysis

  • max time kernel
    154s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    12-02-2022 02:56

General

  • Target

    18fcca26090ce421de0b9b207e5f8a4ffe367e9e20994586b8bbc79eba632cc3.exe

  • Size

    150KB

  • MD5

    9a39a06f58f14bde5d03ddc3ad65cb32

  • SHA1

    55989167ab32aef6f5633b5cf8e05b32f7320dc0

  • SHA256

    18fcca26090ce421de0b9b207e5f8a4ffe367e9e20994586b8bbc79eba632cc3

  • SHA512

    bf3e1ab4d8518bedcdfea3910c1c66955386c43d33892c10f38a0e0b45ce28c57acef7c05bb14b42699dacb09e9ffbeb5ba55f860fa7ece077ecf1fa28787586

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 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\18fcca26090ce421de0b9b207e5f8a4ffe367e9e20994586b8bbc79eba632cc3.exe
    "C:\Users\Admin\AppData\Local\Temp\18fcca26090ce421de0b9b207e5f8a4ffe367e9e20994586b8bbc79eba632cc3.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1320
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:1600
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\18fcca26090ce421de0b9b207e5f8a4ffe367e9e20994586b8bbc79eba632cc3.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4576
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:964
  • 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:4044
  • 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:4428

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    e46f996fcdcf737b3193c6a2877afaab

    SHA1

    fd7bd930cb13cc229c7dccc0cf38b6edb5b7d1bb

    SHA256

    cb4d0a483644c93da8facdea226d5a948982177e9a4115ded3ee6c670bdf250f

    SHA512

    0ebb9207316d931c0ad359f5732f81cb9c5c25595a1f86933175e6aab2b1fd70e3e395c8ff43804fa440eed9efabbe754c0690b941c0217f5a48e82a77482ecd

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

    MD5

    e46f996fcdcf737b3193c6a2877afaab

    SHA1

    fd7bd930cb13cc229c7dccc0cf38b6edb5b7d1bb

    SHA256

    cb4d0a483644c93da8facdea226d5a948982177e9a4115ded3ee6c670bdf250f

    SHA512

    0ebb9207316d931c0ad359f5732f81cb9c5c25595a1f86933175e6aab2b1fd70e3e395c8ff43804fa440eed9efabbe754c0690b941c0217f5a48e82a77482ecd

  • memory/4044-132-0x0000022D23390000-0x0000022D233A0000-memory.dmp

    Filesize

    64KB

  • memory/4044-133-0x0000022D23B60000-0x0000022D23B70000-memory.dmp

    Filesize

    64KB

  • memory/4044-134-0x0000022D26770000-0x0000022D26774000-memory.dmp

    Filesize

    16KB