Analysis

  • max time kernel
    161s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 04:18

General

  • Target

    158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe

  • Size

    216KB

  • MD5

    f4d2a53ba7a90efbe94497525892c6c2

  • SHA1

    cf39eebc04c07b69705fbc4bc5d75d3324e07ad7

  • SHA256

    158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1

  • SHA512

    7203dfce8a078a75526562f851e1347def5acff35973c9116fcf306b514905cbbe35bfa8d7a431018569cd5602cd0efabeeef22e5f6ef0fef43ad3ae6651abe8

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 3 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\158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe
    "C:\Users\Admin\AppData\Local\Temp\158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3364
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2536
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\158ed1bdf54a9d2033e6a719aff2fd5c41dc823092ac6becb2f2110d00ba00b1.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1004
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3744
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3648
  • 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:1952
  • 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:3120

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    87c9b2eafeb592d1d46d5e9ae5419af9

    SHA1

    9bfd75fec3fb2e67d033c1f00df3f2e76d95289b

    SHA256

    5bd787f332c3fa1714cec9d9fce8cb9721a8d206945b0dc3ea8db743c8c37d39

    SHA512

    ec18b2e0e0168a1374aaef55f3ef35e517cc592c65ad226021b170c6fbc3a779c40fe6dad923a9afb09d22e09f52f785d29d2f0dc2d3987ec06d831c8c9872a3

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

    MD5

    87c9b2eafeb592d1d46d5e9ae5419af9

    SHA1

    9bfd75fec3fb2e67d033c1f00df3f2e76d95289b

    SHA256

    5bd787f332c3fa1714cec9d9fce8cb9721a8d206945b0dc3ea8db743c8c37d39

    SHA512

    ec18b2e0e0168a1374aaef55f3ef35e517cc592c65ad226021b170c6fbc3a779c40fe6dad923a9afb09d22e09f52f785d29d2f0dc2d3987ec06d831c8c9872a3

  • memory/3364-132-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB