General

  • Target
    Darkcomet RAT 5.3.1.zip
  • Size 27.0MB
  • Sample260727-m5gn3a1alc
  • SHA256 1f034adbcaee560657b76fc5c0541eca51c45a30d02e35bce4ba7cfe8b7c4174
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 109.172.8.51:4952

Mutex
  • 6uxfo1ssIOKaDC1r

Attributes
  • Install_directory

    %Public%

  • install_file

    System.exe

aes.plain

Extracted

Family
  • darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Targets

    • Target
      Darkcomet RAT 5.3.1.zip
    • Size 27.0MB
    • SHA256 1f034adbcaee560657b76fc5c0541eca51c45a30d02e35bce4ba7cfe8b7c4174
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Family: Darkcomet

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

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Downloads MZ/PE file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Target
      Darkcomet RAT 5.3.1/Celesty Binder/Celesty.exe
    • Size 2.7MB
    • SHA256 0bb88564a22bfd6d9ad6e4d8efa9077792a7b6094c2a0f865d70c43e11507352
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Darkcomet RAT 5.3.1/Compilers/MinGW64/bin/gcc.exe
    • Size 789KB
    • SHA256 27d8ea1223c1cf411773a39e8ef406d1f1d5d8956a0351ba8c74cc6c87978258
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Target
      Darkcomet RAT 5.3.1/Compilers/MinGW64/bin/libiconv-2.dll
    • Size 912KB
    • SHA256 5e3e889409110f7b7c2400f522b31d77b64fb3ab76ccfb9733acde34a07b7ad3
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Darkcomet RAT 5.3.1/Compilers/MinGW64/bin/windres.exe
    • Size 1.1MB
    • SHA256 f245956c930f220f0bedf355a751a5cd738b4ec6bb6c5d584199ab3fa6c0a1c4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Darkcomet RAT 5.3.1/Compilers/MinGW64/libexec/gcc/x86_64-w64-mingw32/4.9.2/cc1.exe
    • Size 12.5MB
    • SHA256 6ce68e248fb64e366aaa6a5fe34fbf530299337de34f03d51dac6b59c86b9a0d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Target
      Darkcomet RAT 5.3.1/Compilers/MinGW64/libexec/gcc/x86_64-w64-mingw32/4.9.2/libcloog-isl-3.dll
    • Size 118KB
    • SHA256 ff6cadf145cd39b19af0b4183eb7c98bbe2e9195d03ded4117be153052ad46bc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Darkcomet RAT 5.3.1/Compilers/MinGW64/libexec/gcc/x86_64-w64-mingw32/4.9.2/libgmp-3.dll
    • Size 416KB
    • SHA256 3bd2deaddc781222f78722e1b734a91da27b9f0e679238e624d83015506a2a54
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Darkcomet RAT 5.3.1/Compilers/MinGW64/libexec/gcc/x86_64-w64-mingw32/4.9.2/libiconv-2.dll
    • Size 912KB
    • SHA256 ba2285e9081fc62a7bf6f6bb3deaef88b43df5312d2aa2c5216ca061e0b3f462
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Target
      Darkcomet RAT 5.3.1/Compilers/MinGW64/libexec/gcc/x86_64-w64-mingw32/4.9.2/libisl-10.dll
    • Size 910KB
    • SHA256 1d210067f31ba2d8135416c61805b22fb191add0ab2165e6da4ef549a8fab5fc
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Target
      Darkcomet RAT 5.3.1/Compilers/MinGW64/libexec/gcc/x86_64-w64-mingw32/4.9.2/libmpc-2.dll
    • Size 73KB
    • SHA256 615088d6ae8eb77a6cfed97616a76a992843794f67a6d0e2a496dd1298a9b5ad
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Darkcomet RAT 5.3.1/Compilers/MinGW64/libexec/gcc/x86_64-w64-mingw32/4.9.2/libmpfr-1.dll
    • Size 323KB
    • SHA256 33180906b102967534f32d640c43b9e4bf7de7c4967368a76349d45e8b490b4a
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Target
      Darkcomet RAT 5.3.1/Compilers/tinycc/include/winapi/mshtml.h
    • Size 30KB
    • SHA256 3d46cc9db05a96ce124700d9e9815a56057e75ead2f419ddb7cdc783de756e2b
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Darkcomet RAT 5.3.1/Compilers/tinycc/lib/bcheck.o
    • Size 263KB
    • SHA256 4579a70ff3531ad43f513feda8b71638ab3c89bbcc23f2fb32af6f2f69af93e1
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Target
      Darkcomet RAT 5.3.1/Compilers/tinycc/lib/bt-dll.o
    • Size 3KB
    • SHA256 03ef0f20bae1a16096ef1d92a65060259ca6899308b81ac80039497664a627e7
    • MD5 SHA1 SHA512 TLSH
    Score
    3/10
    • Target
      Darkcomet RAT 5.3.1/Compilers/tinycc/lib/bt-exe.o
    • Size 6KB
    • SHA256 cf3a5ca28701b695ba3bbe9f5e960e7f79db6446c194acd715305a09add9fe58
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10
    • Target
      Darkcomet RAT 5.3.1/Compilers/tinycc/lib/bt-log.o
    • Size 1024B
    • SHA256 49d9f4d2f239e535581d3d2b3858c47fb2ec88c34a6d441e8c98aeb8f71d1ad9
    • MD5 SHA1 SHA512 TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Target
      Darkcomet RAT 5.3.1/Compilers/tinycc/libtcc.dll
    • Size 221KB
    • SHA256 5673e555abaf7adc8856c04e2ecb63fee657aca2c1cf538f7bf4ddcfba8b78fd
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Target
      Darkcomet RAT 5.3.1/Compilers/tinycc/tcc.exe
    • Size 53KB
    • SHA256 54f013a8811498a3bd20d8440a497698de96b659930001874f7c7f638f887d1d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    1/10
    • Target
      Darkcomet RAT 5.3.1/Compilers/tinycc/x86_64-win32-tcc.exe
    • Size 247KB
    • SHA256 8daaad81845f30e6e09615555f96219ce8dbb281c1497a2ccbdad8e42c79b718
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Target
      Darkcomet RAT 5.3.1/DarkComet.exe
    • Size 11.4MB
    • SHA256 1271c42528eaff30d23ce527346212f2453342e6e4ab1ce8e9b9304e24c407c8
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Detect Xworm Payload

    • Family: Xworm

      Xworm is a remote access trojan written in C#.

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Executes dropped EXE

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Target
      Darkcomet RAT 5.3.1/Spoof extensions/Spoofer.exe
    • Size 2.0MB
    • SHA256 12dbd354b4cc073ea7f80cc0d74bd96118362e9c120df7800cf0f9e863569f98
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    3/10

MITRE ATT&CK Enterprise v16

Tasks

static1

Score
3/10

behavioral1

defense_evasiondiscoverydarkcometxwormpersistenceprivilege_escalationransomwarerattrojan
Score
10/10

behavioral2

discovery
Score
3/10

behavioral3

adwarediscoverypersistenceransomwarespyware
Score
8/10

behavioral4

discovery
Score
3/10

behavioral5

discoveryexecution
Score
3/10

behavioral6

adwarediscoverypersistenceransomwarespyware
Score
8/10

behavioral7

discovery
Score
3/10

behavioral8

discovery
Score
3/10

behavioral9

adwarediscoverypersistenceransomwarespyware
Score
8/10

behavioral10

adwarediscoverypersistenceransomwarespyware
Score
8/10

behavioral11

discovery
Score
3/10

behavioral12

adwarediscoverypersistenceransomwarespyware
Score
8/10

behavioral13

execution
Score
3/10

behavioral14

adwareexecutionpersistenceransomwarespyware
Score
8/10

behavioral15

execution
Score
3/10

behavioral16

execution
Score
3/10

behavioral17

adwareexecutionpersistenceransomwarespyware
Score
8/10

behavioral18

adwarepersistenceransomwarespyware
Score
8/10

behavioral19

Score
1/10

behavioral20

adwarepersistenceransomwarespyware
Score
8/10

behavioral21

defense_evasiondiscoveryxwormrattrojan
Score
10/10

behavioral22

discovery
Score
3/10