Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    18-02-2021 13:17

General

  • Target

    POEA DELISTED AGENCIES (BATCH A).PDF.exe

  • Size

    515KB

  • MD5

    217179aac1ed3994614e7c8666d2f82b

  • SHA1

    d62998531aea7d6acb9d0add1f168739e2e9eab1

  • SHA256

    0bfae38c37f8478cfd4c92f603b202f8f4bff11f96fdce5959eeaad5142d9a3a

  • SHA512

    fd70c49c0fb1df2606e2496497656a4d23ab9868b227a1fef62ff4fa321952964bcd64f70bad1b1a8d763f4985264f1edd6ff19f0b6441bf214f2a37363179ce

Score
10/10

Malware Config

Extracted

Family

remcos

C2

shahzad73.casacam.net:2404

shahzad73.ddns.net:2404

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\POEA DELISTED AGENCIES (BATCH A).PDF.exe
    "C:\Users\Admin\AppData\Local\Temp\POEA DELISTED AGENCIES (BATCH A).PDF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4704
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\iUReni" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBFCB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4056
    • C:\Users\Admin\AppData\Local\Temp\POEA DELISTED AGENCIES (BATCH A).PDF.exe
      "{path}"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:428

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    MD5

    ce663c0d80864fb676dbf68f59b159bb

    SHA1

    66342c1b7b0411726f65a73c0fa6f35d8c97dd83

    SHA256

    a6de060e5d4f9bfdec02081341e3ffd53a5182b24c5520db4616ff48ed0dd869

    SHA512

    a02abad55987db2e28c4ea32a2d251e6c8d61674654f3956ba8537f792d3344ca4b9786202d0bd9d02a1bab966890cc97a94a7649803f381ee3fd588d4753bb5

  • memory/428-16-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/428-15-0x0000000000413FA4-mapping.dmp

  • memory/428-14-0x0000000000400000-0x0000000000421000-memory.dmp

    Filesize

    132KB

  • memory/4056-12-0x0000000000000000-mapping.dmp

  • memory/4704-6-0x0000000004B90000-0x0000000004B91000-memory.dmp

    Filesize

    4KB

  • memory/4704-9-0x0000000008130000-0x0000000008131000-memory.dmp

    Filesize

    4KB

  • memory/4704-10-0x00000000080F0000-0x00000000080FB000-memory.dmp

    Filesize

    44KB

  • memory/4704-11-0x00000000081D0000-0x0000000008246000-memory.dmp

    Filesize

    472KB

  • memory/4704-8-0x0000000004A90000-0x0000000004A91000-memory.dmp

    Filesize

    4KB

  • memory/4704-7-0x0000000004C80000-0x0000000004C81000-memory.dmp

    Filesize

    4KB

  • memory/4704-2-0x0000000073CE0000-0x00000000743CE000-memory.dmp

    Filesize

    6.9MB

  • memory/4704-5-0x0000000005090000-0x0000000005091000-memory.dmp

    Filesize

    4KB

  • memory/4704-3-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB