Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    13-01-2021 06:01

General

  • Target

    Shipping Document PL& BL 960.exe

  • Size

    1001KB

  • MD5

    eb305d3d7f3a4b7fe158d41522458d27

  • SHA1

    20916b0fbaee03bdb6da50b8d1c75a1b77eeaa0c

  • SHA256

    3dde92f19924860f0874ee0fe3fab80a1112c20e18d9782528bd7c471f0f2344

  • SHA512

    e81c7710556d79a5d60aeb7488408087cb8450599f483c1d4875da7487bebc88225515763f77e74eabda98c6e1fe364e54a9cdece966616a2d1a9dabc1255614

Score
10/10

Malware Config

Extracted

Family

remcos

C2

favour2021.ddns.net:1990

Signatures

  • Remcos

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

  • 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 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\Shipping Document PL& BL 960.exe
    "C:\Users\Admin\AppData\Local\Temp\Shipping Document PL& BL 960.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4700
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zkjAtOCJCxw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp45A5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3092
    • C:\Users\Admin\AppData\Local\Temp\Shipping Document PL& BL 960.exe
      "C:\Users\Admin\AppData\Local\Temp\Shipping Document PL& BL 960.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      PID:428

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp45A5.tmp
    MD5

    8bf08adb94057f5b53d39db2cc8abec1

    SHA1

    938e2b44632295145d9cb03c4202da2b2b3e06b0

    SHA256

    3eade89534ee27a532932ae04c97a86cd2445afd030b898ba76a674537937dd3

    SHA512

    6aec98c21705a2abf4feab345ef631c8ec404132f2bf9eaaaab4e3eee9cbcf991a45ddf5d8b58e04ae44c4b1dd2e45d6b6d51b73394dbb88b2f3d9abc08801b3

  • 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/3092-12-0x0000000000000000-mapping.dmp
  • memory/4700-6-0x00000000050C0000-0x00000000050C1000-memory.dmp
    Filesize

    4KB

  • memory/4700-9-0x0000000004E20000-0x0000000004E21000-memory.dmp
    Filesize

    4KB

  • memory/4700-10-0x0000000004C40000-0x0000000004C52000-memory.dmp
    Filesize

    72KB

  • memory/4700-11-0x00000000058E0000-0x000000000593D000-memory.dmp
    Filesize

    372KB

  • memory/4700-8-0x0000000004C00000-0x0000000004C01000-memory.dmp
    Filesize

    4KB

  • memory/4700-7-0x0000000004C60000-0x0000000004C61000-memory.dmp
    Filesize

    4KB

  • memory/4700-2-0x0000000073CE0000-0x00000000743CE000-memory.dmp
    Filesize

    6.9MB

  • memory/4700-5-0x0000000004B20000-0x0000000004B21000-memory.dmp
    Filesize

    4KB

  • memory/4700-3-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB