Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    22-04-2021 00:44

General

  • Target

    RESOLDELPROCPORFRAUFISC468830002 RESOLDELPROCPORFRAUFISC468830003.exe

  • Size

    801KB

  • MD5

    cdbe179ccd3e2676a8149430dd4d2027

  • SHA1

    dd79a36de18f788899276805f2efcaf2a6295b7a

  • SHA256

    7a1ca0872400fc383eea460f0eb93927610a9ba28cd74dfa8f37d11a2b2b6d71

  • SHA512

    703e87d7b5986a3c9a486a3fc5ced5ce49f89ba1469145562f86c037e733f84f9d324d362b5f3936f770c71d090a962613cc9e015e811ab14a0d75f521adf1f6

Score
10/10

Malware Config

Extracted

Family

remcos

C2

electricaribe.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 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\RESOLDELPROCPORFRAUFISC468830002 RESOLDELPROCPORFRAUFISC468830003.exe
    "C:\Users\Admin\AppData\Local\Temp\RESOLDELPROCPORFRAUFISC468830002 RESOLDELPROCPORFRAUFISC468830003.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zHvfETCQIPJiU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1BC6.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3260
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:1312

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1BC6.tmp

    MD5

    68dce738bb1b5418aa6c48470fc2f00d

    SHA1

    4ef847f987505d05f09f2aa1c31d92e9757590f7

    SHA256

    21d33346f37ca63ab24a64bce5d9ebc6c19a718ca57445aa0a3afb54254a61d1

    SHA512

    00ed906894b3c5a3637c364924359da2c48a636cfd0a7e8fdc30943bf1c3d49f1a09f231efe501ba07345a21d34c607b0d3010d19c484f9f64012f84700e817d

  • memory/640-121-0x0000000008D60000-0x0000000008D65000-memory.dmp

    Filesize

    20KB

  • memory/640-117-0x00000000057F0000-0x00000000057F1000-memory.dmp

    Filesize

    4KB

  • memory/640-118-0x0000000005750000-0x0000000005C4E000-memory.dmp

    Filesize

    5.0MB

  • memory/640-119-0x0000000005890000-0x0000000005891000-memory.dmp

    Filesize

    4KB

  • memory/640-120-0x0000000008F90000-0x0000000008F91000-memory.dmp

    Filesize

    4KB

  • memory/640-114-0x0000000000ED0000-0x0000000000ED1000-memory.dmp

    Filesize

    4KB

  • memory/640-122-0x000000000A2E0000-0x000000000A389000-memory.dmp

    Filesize

    676KB

  • memory/640-123-0x0000000007480000-0x00000000074E0000-memory.dmp

    Filesize

    384KB

  • memory/640-116-0x0000000005C50000-0x0000000005C51000-memory.dmp

    Filesize

    4KB

  • memory/1312-126-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/1312-127-0x0000000000413E54-mapping.dmp

  • memory/1312-128-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/3260-124-0x0000000000000000-mapping.dmp