Overview

overview

10

Static

static

10

4ba3b76933...18.exe

windows7-x64

10

4ba3b76933...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    16-05-2024 14:53

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General

  • Target

    4ba3b7693391fa5d8326b686692a9f91_JaffaCakes118.exe

  • Size

    349KB

  • MD5

    4ba3b7693391fa5d8326b686692a9f91

  • SHA1

    bfe26b996c5a1176896cbd82ef8044af25042720

  • SHA256

    475604a43c345971022ae3da673840556e6a65e9355ca2376cc3b81b65bbce3f

  • SHA512

    de6c30aa11c1cc63947566b5bcbed45dbefce9d9edabadb069b14157bf64d9aad87bcc92e9453f89e7b5b3858a87d41deb7dc3f288db9430aad0e64dfeddeb1d

  • SSDEEP

    6144:McNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37WAuPlbL:McW7KEZlPzCy37

Score
10/10
darkcometmaincraftevasionpersistencerattrojanupx

Malware Config

Extracted

Family

darkcomet

Botnet

maincraft

C2

petyx.ddns.net:7895

duxa.ddns.net:7895
Mutex

DC_MUTEX-P0HW8GA

Attributes
  • InstallPath

    MSDCSC\Windows.exe

  • gencode

    RbtaWfmoGPRb

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies firewall policy service 2 TTPs 6 IoCs
    evasion
  • Modifies security service 2 TTPs 2 IoCs
    evasion
  • Disables RegEdit via registry modification 2 IoCs
    evasion
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

    evasion
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 6 IoCs

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

    upx
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • System policy modification 1 TTPs 3 IoCs
    evasion
  • Views/modifies file attributes 1 TTPs 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ba3b7693391fa5d8326b686692a9f91_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4ba3b7693391fa5d8326b686692a9f91_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2892
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\4ba3b7693391fa5d8326b686692a9f91_JaffaCakes118.exe" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3016
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp\4ba3b7693391fa5d8326b686692a9f91_JaffaCakes118.exe" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:2544
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2532
      • C:\Windows\SysWOW64\attrib.exe
        attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • Sets file to hidden
        • Views/modifies file attributes
        PID:2672
    • C:\Users\Admin\AppData\Roaming\MSDCSC\Windows.exe
      "C:\Users\Admin\AppData\Roaming\MSDCSC\Windows.exe"
      2⤵
      • Modifies firewall policy service
      • Modifies security service
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:2804
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Disables RegEdit via registry modification
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2312

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Defense Evasion

Modify Registry

5
T1112

Hide Artifacts

2
T1564

Hidden Files and Directories

2
T1564.001

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

  • \Users\Admin\AppData\Roaming\MSDCSC\Windows.exe
    Filesize

    349KB

    MD5

    4ba3b7693391fa5d8326b686692a9f91

    SHA1

    bfe26b996c5a1176896cbd82ef8044af25042720

    SHA256

    475604a43c345971022ae3da673840556e6a65e9355ca2376cc3b81b65bbce3f

    SHA512

    de6c30aa11c1cc63947566b5bcbed45dbefce9d9edabadb069b14157bf64d9aad87bcc92e9453f89e7b5b3858a87d41deb7dc3f288db9430aad0e64dfeddeb1d

    Download Submit
  • memory/2312-15-0x0000000000400000-0x00000000004E8000-memory.dmp
    Filesize

    928KB

    Download
  • memory/2804-13-0x0000000000400000-0x00000000004E8000-memory.dmp
    Filesize

    928KB

    Download
  • memory/2804-17-0x0000000000400000-0x00000000004E8000-memory.dmp
    Filesize

    928KB

    Download
  • memory/2892-0-0x0000000000400000-0x00000000004E8000-memory.dmp
    Filesize

    928KB

    Download
  • memory/2892-1-0x00000000003E0000-0x00000000003E1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/2892-12-0x00000000043D0000-0x00000000044B8000-memory.dmp
    Filesize

    928KB

    Download
  • memory/2892-18-0x0000000000400000-0x00000000004E8000-memory.dmp
    Filesize

    928KB

    Download