Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    22-04-2021 15:05

General

  • Target

    CARPSOBRPROCVINCINGR43678530006 CARPSOBRPROCVINCINGR43678530008.exe

  • Size

    733KB

  • MD5

    1eb8fa1f2c8605c2d5db68008086757e

  • SHA1

    d2d8e51076f4f98fb012e01066fceae5eb15836c

  • SHA256

    4bf0ad56b4d4a1f43e87c408340097995d6542d744b4af5c51aba1c1fefe5d7b

  • SHA512

    0d1e6bcdbdb9e09b2ed1379db0770c8fc4733e6d64bbaba1eb6caef4dc7eb524ad0964c0fe8b93a838e0dd31c566275339f1bd3596347134fe528c1d6616e560

Score
10/10

Malware Config

Extracted

Family

remcos

C2

romancito24.duckdns.org:1717

Signatures

  • Remcos

    Remcos is a closed-source remote control and surveillance software.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CARPSOBRPROCVINCINGR43678530006 CARPSOBRPROCVINCINGR43678530008.exe
    "C:\Users\Admin\AppData\Local\Temp\CARPSOBRPROCVINCINGR43678530006 CARPSOBRPROCVINCINGR43678530008.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XTfVRG" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFD24.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1468
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:552
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:928

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpFD24.tmp

      MD5

      a4b86f618bed49c01c72f495df97d3b0

      SHA1

      a3669fb139884765645d7d61e85420fe7bc495ed

      SHA256

      50660f9b51a7c585b3bd771b83cc6a496e6b4d48b7b15419eae0c732382d468a

      SHA512

      5717004f05c66c85ae673e62ed7a2676fe256dd29b5ef38dc2b41788e636b663ce0e06740a3bda5281d3bc5252c27fdff2ae109a6b9e4026d620203713dc6de3

    • memory/928-68-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/928-69-0x0000000000413E54-mapping.dmp

    • memory/928-70-0x0000000075B31000-0x0000000075B33000-memory.dmp

      Filesize

      8KB

    • memory/928-71-0x0000000000400000-0x0000000000421000-memory.dmp

      Filesize

      132KB

    • memory/1468-66-0x0000000000000000-mapping.dmp

    • memory/1992-60-0x0000000000E40000-0x0000000000E41000-memory.dmp

      Filesize

      4KB

    • memory/1992-62-0x0000000004C30000-0x0000000004C31000-memory.dmp

      Filesize

      4KB

    • memory/1992-63-0x0000000000350000-0x000000000035E000-memory.dmp

      Filesize

      56KB

    • memory/1992-64-0x0000000005760000-0x000000000581A000-memory.dmp

      Filesize

      744KB

    • memory/1992-65-0x0000000004FB0000-0x0000000005021000-memory.dmp

      Filesize

      452KB