Overview

overview

10

Static

static

5

6df11d59c1...77.exe

windows7-x64

10

6df11d59c1...77.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    208s
  • max time network
    212s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 11:07

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General

  • Target

    6df11d59c1f9ecf9f5e1dc43d0859555f78e0179c475b5d70811dc8d22326b77.exe

  • Size

    1.4MB

  • MD5

    2bcaee20d4fcb2901a9d826d3ebb2bf7

  • SHA1

    613d14de92d120a87f9dbf08750d63fa94d1036c

  • SHA256

    6df11d59c1f9ecf9f5e1dc43d0859555f78e0179c475b5d70811dc8d22326b77

  • SHA512

    355759f8df2db60c2a319028572d56228410a8efdf32d132148e3a7d2a3f6b67352f6f2a52d5399c54bde0b1ef4417fd193bcd09d547de2401fcbae8878247e5

  • SSDEEP

    24576:o4lavt0LkLL9IMixoEgea9x4Gm2wqlNi83qlsV4H0c91Ys9sRCfhCq9MmCS:/kwkn9IMHea9GGmqi8ibH0cYbhaPCS

Score
10/10
darkcometguest16persistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

89.136.184.30:1604

Mutex

DC_MUTEX-1YMESL4

Attributes
  • gencode

    hMnACexJqak5

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Executes dropped EXE 2 IoCs
  • UPX packed file 6 IoCs

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

    upx
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

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

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

  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6df11d59c1f9ecf9f5e1dc43d0859555f78e0179c475b5d70811dc8d22326b77.exe
    "C:\Users\Admin\AppData\Local\Temp\6df11d59c1f9ecf9f5e1dc43d0859555f78e0179c475b5d70811dc8d22326b77.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4384
    • C:\Users\Admin\AppData\Local\TempDropboxInstaller.exe
      "C:\Users\Admin\AppData\Local\TempDropboxInstaller.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:2232
    • C:\Users\Admin\AppData\Local\Temp\6df11d59c1f9ecf9f5e1dc43d0859555f78e0179c475b5d70811dc8d22326b77.exe
      "C:\Users\Admin\AppData\Local\Temp\6df11d59c1f9ecf9f5e1dc43d0859555f78e0179c475b5d70811dc8d22326b77.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2172

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\TempDropboxInstaller.exe
    Filesize

    316KB

    MD5

    e4f4745c5f4ad478ec15b3a25f62f35b

    SHA1

    715bf92805761b04915ebc3a5ca0723dd9e7297c

    SHA256

    c1d1db8a30e6679f65eb3e4f5593b572b4295ab42a4e62de2c569570d652120a

    SHA512

    c13790be0e3a3b68190dfa848b53b5c69470cd45558b7cd4e096ba3d71d93709b6a41f98ff28f49efcf9e93f22056134ac937a417573f9bb448319035f8fb76c

    Download Submit

  • C:\Users\Admin\AppData\Local\TempDropboxInstaller.exe
    Filesize

    316KB

    MD5

    e4f4745c5f4ad478ec15b3a25f62f35b

    SHA1

    715bf92805761b04915ebc3a5ca0723dd9e7297c

    SHA256

    c1d1db8a30e6679f65eb3e4f5593b572b4295ab42a4e62de2c569570d652120a

    SHA512

    c13790be0e3a3b68190dfa848b53b5c69470cd45558b7cd4e096ba3d71d93709b6a41f98ff28f49efcf9e93f22056134ac937a417573f9bb448319035f8fb76c

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\6df11d59c1f9ecf9f5e1dc43d0859555f78e0179c475b5d70811dc8d22326b77.exe
    Filesize

    1.4MB

    MD5

    2bcaee20d4fcb2901a9d826d3ebb2bf7

    SHA1

    613d14de92d120a87f9dbf08750d63fa94d1036c

    SHA256

    6df11d59c1f9ecf9f5e1dc43d0859555f78e0179c475b5d70811dc8d22326b77

    SHA512

    355759f8df2db60c2a319028572d56228410a8efdf32d132148e3a7d2a3f6b67352f6f2a52d5399c54bde0b1ef4417fd193bcd09d547de2401fcbae8878247e5

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\6df11d59c1f9ecf9f5e1dc43d0859555f78e0179c475b5d70811dc8d22326b77.exe
    Filesize

    1.4MB

    MD5

    2bcaee20d4fcb2901a9d826d3ebb2bf7

    SHA1

    613d14de92d120a87f9dbf08750d63fa94d1036c

    SHA256

    6df11d59c1f9ecf9f5e1dc43d0859555f78e0179c475b5d70811dc8d22326b77

    SHA512

    355759f8df2db60c2a319028572d56228410a8efdf32d132148e3a7d2a3f6b67352f6f2a52d5399c54bde0b1ef4417fd193bcd09d547de2401fcbae8878247e5

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\nss19AF.tmp\Banner.dll
    Filesize

    3KB

    MD5

    e2fc789b98ffc7ab7934305e84c5da9f

    SHA1

    416454e167bd7a76aed5af6fa219b45a03abe5e4

    SHA256

    24578d4ab85113af57ecdd64b4058ccfd16795b32f35a9db4a23cc19eaa0bd72

    SHA512

    7d0570901703eb63a5f5ba02abef567f1b8b44a40b9d445a1b79f979af55b3fc77e238c9069b844f60f4e18eab56e68e2e56558b3c5f7a813d11c1e00e1288f5

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\nss19AF.tmp\Banner.dll
    Filesize

    3KB

    MD5

    e2fc789b98ffc7ab7934305e84c5da9f

    SHA1

    416454e167bd7a76aed5af6fa219b45a03abe5e4

    SHA256

    24578d4ab85113af57ecdd64b4058ccfd16795b32f35a9db4a23cc19eaa0bd72

    SHA512

    7d0570901703eb63a5f5ba02abef567f1b8b44a40b9d445a1b79f979af55b3fc77e238c9069b844f60f4e18eab56e68e2e56558b3c5f7a813d11c1e00e1288f5

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\nss19AF.tmp\System.dll
    Filesize

    11KB

    MD5

    dbd31dec996410c5424655b290084cd7

    SHA1

    8517b1ffdf5bc5390956be4668adb51317fc069e

    SHA256

    ee4130a867c00861ec8da4d3ec2df03ce2856292e7d877e032584e564075cca3

    SHA512

    fa28d94f84bbec194ad2c42919f8c0bc5d4e589566e7db78b791b9c36e632cedc81e5d87f737f754d2ba8cc2091f8ea4f412bf2249662f0c1e15b42660820919

    Download Submit

  • memory/2172-139-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

    Download

  • memory/2172-141-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

    Download

  • memory/2172-142-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

    Download

  • memory/2172-140-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

    Download

  • memory/2172-145-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

    Download

  • memory/2172-137-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

    Download

  • memory/2172-136-0x0000000000000000-mapping.dmp

    Download

  • memory/2232-133-0x0000000000000000-mapping.dmp

    Download