Analysis

  • max time kernel
    152s
  • max time network
    167s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 11:58

General

  • Target

    02da7bb3f9c8b5b09362211267344b6016e74e4a18ef3a821455c78ebac5d493.exe

  • Size

    89KB

  • MD5

    a7b458591eb645b5d5d7abb84ebccbfb

  • SHA1

    a68a805de941e415819ec4e560d6e6e739c75164

  • SHA256

    02da7bb3f9c8b5b09362211267344b6016e74e4a18ef3a821455c78ebac5d493

  • SHA512

    3ee577dc7d0c87e45256558542953bdf249b6a0f8b4a31d5dd3f2bd4daa42cb1627d92cff9a899439a9fce12d139e842e8c7170950b91837a42beb1b36e909d5

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 49 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\02da7bb3f9c8b5b09362211267344b6016e74e4a18ef3a821455c78ebac5d493.exe
    "C:\Users\Admin\AppData\Local\Temp\02da7bb3f9c8b5b09362211267344b6016e74e4a18ef3a821455c78ebac5d493.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2244
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\02da7bb3f9c8b5b09362211267344b6016e74e4a18ef3a821455c78ebac5d493.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3916
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:636
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2168
  • 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:1968
  • 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:2624

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    d753bea958b7190f94f0d3f122c44148

    SHA1

    c29209dbed00109a3773c742c32bf3818fd7dd49

    SHA256

    fa2a7ba9552816b21350964d4928708bea7dab7f3d75a22a173a2c6a51b0fa73

    SHA512

    26b03c6c062e1046d9c25ea018e1e6c572082d0a1d6d9dda30db5896f254bb3cb246814acc030136214892a705b143a128ac36c6165ad8a53e007cb7933ac6db

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

    d753bea958b7190f94f0d3f122c44148

    SHA1

    c29209dbed00109a3773c742c32bf3818fd7dd49

    SHA256

    fa2a7ba9552816b21350964d4928708bea7dab7f3d75a22a173a2c6a51b0fa73

    SHA512

    26b03c6c062e1046d9c25ea018e1e6c572082d0a1d6d9dda30db5896f254bb3cb246814acc030136214892a705b143a128ac36c6165ad8a53e007cb7933ac6db