Analysis

  • max time kernel
    150s
  • max time network
    184s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    15-05-2021 00:58

General

  • Target

    a3ea0f7e7ed47a78bd00703e9e6e0a9127b0107b270cf8c25b910bfe3f3872b8.exe

  • Size

    1.9MB

  • MD5

    b642d6bd10be8a0755f7d9b1ec6dc4b4

  • SHA1

    4fd2f150c468ab083b9e55f44cf083e7a2c33fdd

  • SHA256

    a3ea0f7e7ed47a78bd00703e9e6e0a9127b0107b270cf8c25b910bfe3f3872b8

  • SHA512

    d302dd8a8d0ded6611824144bfffb1ce41b00db521b89b2c5a0f83e09970e9cbb288f039b6a0f85e112d9301ed2cb0f7b42c42af8913025f6fcbf0d8e5343e16

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Executes dropped EXE 3 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3ea0f7e7ed47a78bd00703e9e6e0a9127b0107b270cf8c25b910bfe3f3872b8.exe
    "C:\Users\Admin\AppData\Local\Temp\a3ea0f7e7ed47a78bd00703e9e6e0a9127b0107b270cf8c25b910bfe3f3872b8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Users\Admin\AppData\Local\Temp\a3ea0f7e7ed47a78bd00703e9e6e0a9127b0107b270cf8c25b910bfe3f3872b8.exe
      "C:\Users\Admin\AppData\Local\Temp\a3ea0f7e7ed47a78bd00703e9e6e0a9127b0107b270cf8c25b910bfe3f3872b8.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1836
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\PQNVI.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:584
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "svchost" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\test\test.exe" /f
          4⤵
          • Adds Run key to start application
          PID:568
      • C:\Users\Admin\AppData\Roaming\test\test.exe
        "C:\Users\Admin\AppData\Roaming\test\test.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1872
        • C:\Users\Admin\AppData\Roaming\test\test.exe
          "C:\Users\Admin\AppData\Roaming\test\test.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:432
        • C:\Users\Admin\AppData\Roaming\test\test.exe
          "C:\Users\Admin\AppData\Roaming\test\test.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:1472

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\PQNVI.bat
    MD5

    527683c48cc4c7190219814c77b72fe0

    SHA1

    d995878a8f4b9824a0508039eeada5376be9a52d

    SHA256

    bbebf3e66136e700d8e3e2e0c8f461cdd9d7e68fe5a18a235afe86344932fb4b

    SHA512

    408a53b240c23fa34153ccc2b2315f28a9741121ecc9b76d50267ee62d78230e65574327369f83c779c781802c0c28f6c578703c01a67de46c3d44f71b814fa6

  • C:\Users\Admin\AppData\Roaming\test\test.exe
    MD5

    e7425e7c55841910a37467a0f34cca24

    SHA1

    1c56ed6dcb9c97cbf15defba71f041b1f530b419

    SHA256

    acb742b7e359499c99784406a1deef741c7483faea8824b70389171d0ab32765

    SHA512

    bc64615778a8093f98a718258ba9cda3f8a73abd2b6fb3862287a7eff71a6b4eb71ad7d4ea65fecfb63ca43905c3d39b2fa838d303685b09f7905f0adf9ddc98

  • C:\Users\Admin\AppData\Roaming\test\test.exe
    MD5

    e7425e7c55841910a37467a0f34cca24

    SHA1

    1c56ed6dcb9c97cbf15defba71f041b1f530b419

    SHA256

    acb742b7e359499c99784406a1deef741c7483faea8824b70389171d0ab32765

    SHA512

    bc64615778a8093f98a718258ba9cda3f8a73abd2b6fb3862287a7eff71a6b4eb71ad7d4ea65fecfb63ca43905c3d39b2fa838d303685b09f7905f0adf9ddc98

  • C:\Users\Admin\AppData\Roaming\test\test.exe
    MD5

    e7425e7c55841910a37467a0f34cca24

    SHA1

    1c56ed6dcb9c97cbf15defba71f041b1f530b419

    SHA256

    acb742b7e359499c99784406a1deef741c7483faea8824b70389171d0ab32765

    SHA512

    bc64615778a8093f98a718258ba9cda3f8a73abd2b6fb3862287a7eff71a6b4eb71ad7d4ea65fecfb63ca43905c3d39b2fa838d303685b09f7905f0adf9ddc98

  • C:\Users\Admin\AppData\Roaming\test\test.exe
    MD5

    e7425e7c55841910a37467a0f34cca24

    SHA1

    1c56ed6dcb9c97cbf15defba71f041b1f530b419

    SHA256

    acb742b7e359499c99784406a1deef741c7483faea8824b70389171d0ab32765

    SHA512

    bc64615778a8093f98a718258ba9cda3f8a73abd2b6fb3862287a7eff71a6b4eb71ad7d4ea65fecfb63ca43905c3d39b2fa838d303685b09f7905f0adf9ddc98

  • \Users\Admin\AppData\Roaming\test\test.exe
    MD5

    e7425e7c55841910a37467a0f34cca24

    SHA1

    1c56ed6dcb9c97cbf15defba71f041b1f530b419

    SHA256

    acb742b7e359499c99784406a1deef741c7483faea8824b70389171d0ab32765

    SHA512

    bc64615778a8093f98a718258ba9cda3f8a73abd2b6fb3862287a7eff71a6b4eb71ad7d4ea65fecfb63ca43905c3d39b2fa838d303685b09f7905f0adf9ddc98

  • \Users\Admin\AppData\Roaming\test\test.exe
    MD5

    e7425e7c55841910a37467a0f34cca24

    SHA1

    1c56ed6dcb9c97cbf15defba71f041b1f530b419

    SHA256

    acb742b7e359499c99784406a1deef741c7483faea8824b70389171d0ab32765

    SHA512

    bc64615778a8093f98a718258ba9cda3f8a73abd2b6fb3862287a7eff71a6b4eb71ad7d4ea65fecfb63ca43905c3d39b2fa838d303685b09f7905f0adf9ddc98

  • \Users\Admin\AppData\Roaming\test\test.exe
    MD5

    e7425e7c55841910a37467a0f34cca24

    SHA1

    1c56ed6dcb9c97cbf15defba71f041b1f530b419

    SHA256

    acb742b7e359499c99784406a1deef741c7483faea8824b70389171d0ab32765

    SHA512

    bc64615778a8093f98a718258ba9cda3f8a73abd2b6fb3862287a7eff71a6b4eb71ad7d4ea65fecfb63ca43905c3d39b2fa838d303685b09f7905f0adf9ddc98

  • \Users\Admin\AppData\Roaming\test\test.exe
    MD5

    e7425e7c55841910a37467a0f34cca24

    SHA1

    1c56ed6dcb9c97cbf15defba71f041b1f530b419

    SHA256

    acb742b7e359499c99784406a1deef741c7483faea8824b70389171d0ab32765

    SHA512

    bc64615778a8093f98a718258ba9cda3f8a73abd2b6fb3862287a7eff71a6b4eb71ad7d4ea65fecfb63ca43905c3d39b2fa838d303685b09f7905f0adf9ddc98

  • \Users\Admin\AppData\Roaming\test\test.exe
    MD5

    e7425e7c55841910a37467a0f34cca24

    SHA1

    1c56ed6dcb9c97cbf15defba71f041b1f530b419

    SHA256

    acb742b7e359499c99784406a1deef741c7483faea8824b70389171d0ab32765

    SHA512

    bc64615778a8093f98a718258ba9cda3f8a73abd2b6fb3862287a7eff71a6b4eb71ad7d4ea65fecfb63ca43905c3d39b2fa838d303685b09f7905f0adf9ddc98

  • memory/432-105-0x00000000004085D0-mapping.dmp
  • memory/568-84-0x0000000000000000-mapping.dmp
  • memory/584-82-0x0000000000000000-mapping.dmp
  • memory/1472-107-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/1472-121-0x0000000000400000-0x00000000004B7000-memory.dmp
    Filesize

    732KB

  • memory/1472-122-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB

  • memory/1472-108-0x00000000004B5640-mapping.dmp
  • memory/1648-70-0x0000000000240000-0x0000000000241000-memory.dmp
    Filesize

    4KB

  • memory/1648-68-0x0000000000401000-0x0000000000546000-memory.dmp
    Filesize

    1.3MB

  • memory/1648-76-0x00000000003E0000-0x00000000003E1000-memory.dmp
    Filesize

    4KB

  • memory/1648-79-0x0000000000560000-0x0000000000561000-memory.dmp
    Filesize

    4KB

  • memory/1648-62-0x0000000000401000-0x0000000000546000-memory.dmp
    Filesize

    1.3MB

  • memory/1648-71-0x00000000002D0000-0x00000000002D1000-memory.dmp
    Filesize

    4KB

  • memory/1648-77-0x00000000003F0000-0x00000000003F1000-memory.dmp
    Filesize

    4KB

  • memory/1648-78-0x0000000000550000-0x0000000000551000-memory.dmp
    Filesize

    4KB

  • memory/1648-69-0x0000000000401000-0x0000000000546000-memory.dmp
    Filesize

    1.3MB

  • memory/1648-59-0x0000000000400000-0x000000000054B000-memory.dmp
    Filesize

    1.3MB

  • memory/1648-67-0x0000000000401000-0x0000000000546000-memory.dmp
    Filesize

    1.3MB

  • memory/1648-66-0x0000000000401000-0x0000000000546000-memory.dmp
    Filesize

    1.3MB

  • memory/1648-65-0x0000000000401000-0x0000000000546000-memory.dmp
    Filesize

    1.3MB

  • memory/1648-63-0x0000000000401000-0x0000000000546000-memory.dmp
    Filesize

    1.3MB

  • memory/1836-81-0x0000000076641000-0x0000000076643000-memory.dmp
    Filesize

    8KB

  • memory/1836-72-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1836-73-0x00000000004085D0-mapping.dmp
  • memory/1836-80-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1872-90-0x0000000000000000-mapping.dmp