Analysis

  • max time kernel
    116s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    10-06-2022 00:23

General

  • Target

    184be2a73a16e66153a8af6958c16b9d.exe

  • Size

    905KB

  • MD5

    184be2a73a16e66153a8af6958c16b9d

  • SHA1

    119957a445db96c9e151a326c535fe36c70adda7

  • SHA256

    9e9eae41469ebcfc9d59edafcb66c6f2eed5850c06d0306f4a1cc3eb47afc85e

  • SHA512

    3682b333ff8f0e759467929b2f564ebdc1735f4ed42d3a59ac4e5dd1f9492f024ee361b390df66421535c45c157da137206eeb7d6376684c2322b8e73e2d074a

Malware Config

Signatures

  • SectopRAT

    SectopRAT is a remote access trojan first seen in November 2019.

  • SectopRAT Payload 1 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • suricata: ET MALWARE Arechclient2 Backdoor CnC Init

    suricata: ET MALWARE Arechclient2 Backdoor CnC Init

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\184be2a73a16e66153a8af6958c16b9d.exe
    "C:\Users\Admin\AppData\Local\Temp\184be2a73a16e66153a8af6958c16b9d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3116
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • UAC bypass
      • Suspicious use of AdjustPrivilegeToken
      • System policy modification
      PID:4108
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\regservice32\regservice32.exe'" /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4724
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\regservice32\regservice32.exe'" /f
        3⤵
        • Creates scheduled task(s)
        PID:2616
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\184be2a73a16e66153a8af6958c16b9d.exe" "C:\Users\Admin\AppData\Roaming\regservice32\regservice32.exe"
      2⤵
        PID:2108
    • C:\Users\Admin\AppData\Roaming\regservice32\regservice32.exe
      C:\Users\Admin\AppData\Roaming\regservice32\regservice32.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4748

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\regservice32\regservice32.exe

      Filesize

      905KB

      MD5

      184be2a73a16e66153a8af6958c16b9d

      SHA1

      119957a445db96c9e151a326c535fe36c70adda7

      SHA256

      9e9eae41469ebcfc9d59edafcb66c6f2eed5850c06d0306f4a1cc3eb47afc85e

      SHA512

      3682b333ff8f0e759467929b2f564ebdc1735f4ed42d3a59ac4e5dd1f9492f024ee361b390df66421535c45c157da137206eeb7d6376684c2322b8e73e2d074a

    • C:\Users\Admin\AppData\Roaming\regservice32\regservice32.exe

      Filesize

      905KB

      MD5

      184be2a73a16e66153a8af6958c16b9d

      SHA1

      119957a445db96c9e151a326c535fe36c70adda7

      SHA256

      9e9eae41469ebcfc9d59edafcb66c6f2eed5850c06d0306f4a1cc3eb47afc85e

      SHA512

      3682b333ff8f0e759467929b2f564ebdc1735f4ed42d3a59ac4e5dd1f9492f024ee361b390df66421535c45c157da137206eeb7d6376684c2322b8e73e2d074a

    • memory/2108-135-0x0000000000000000-mapping.dmp

    • memory/2616-137-0x0000000000000000-mapping.dmp

    • memory/3116-131-0x00000000059F0000-0x0000000005F94000-memory.dmp

      Filesize

      5.6MB

    • memory/3116-130-0x0000000000540000-0x0000000000620000-memory.dmp

      Filesize

      896KB

    • memory/4108-142-0x0000000006470000-0x000000000648E000-memory.dmp

      Filesize

      120KB

    • memory/4108-136-0x0000000005480000-0x00000000054E6000-memory.dmp

      Filesize

      408KB

    • memory/4108-138-0x0000000005AB0000-0x0000000005B42000-memory.dmp

      Filesize

      584KB

    • memory/4108-139-0x00000000067E0000-0x00000000069A2000-memory.dmp

      Filesize

      1.8MB

    • memory/4108-140-0x00000000066E0000-0x0000000006756000-memory.dmp

      Filesize

      472KB

    • memory/4108-141-0x0000000006EE0000-0x000000000740C000-memory.dmp

      Filesize

      5.2MB

    • memory/4108-133-0x0000000000400000-0x00000000004A2000-memory.dmp

      Filesize

      648KB

    • memory/4108-132-0x0000000000000000-mapping.dmp

    • memory/4724-134-0x0000000000000000-mapping.dmp

    • memory/4748-145-0x0000000000970000-0x0000000000A50000-memory.dmp

      Filesize

      896KB