Overview

overview

10

Static

static

10

7fb5225671...63.exe

windows7_x64

10

7fb5225671...63.exe

windows10_x64

10

Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    09-05-2021 01:01

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General

  • Target

    7fb5225671608e34583ac4e3766f9b6e765efeb1f71921366e30dcaad296f663.exe

  • Size

    658KB

  • MD5

    039c7ff58d895d09b8197e81219c8a4c

  • SHA1

    1d39f31f551e520a12eb8b86e87fa355685b8444

  • SHA256

    7fb5225671608e34583ac4e3766f9b6e765efeb1f71921366e30dcaad296f663

  • SHA512

    bed83268a318d1efdada4fe7d683970d85386e9fdc702dd113ae15b77d81c9eef3c67fc8f17a0a153f5d915e9c6794aeb7a71e404ed52d0f937e07a962a55f9f

Score
10/10
darkcometjunior_sazanpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Junior_Sazan

C2

192.168.43.1:1604

Mutex

DCMIN_MUTEX-XWTUXJX

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    gdhAkt6XVk4X

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    Windows Defender

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7fb5225671608e34583ac4e3766f9b6e765efeb1f71921366e30dcaad296f663.exe
    "C:\Users\Admin\AppData\Local\Temp\7fb5225671608e34583ac4e3766f9b6e765efeb1f71921366e30dcaad296f663.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1000
    • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
      "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:636

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
    MD5

    039c7ff58d895d09b8197e81219c8a4c

    SHA1

    1d39f31f551e520a12eb8b86e87fa355685b8444

    SHA256

    7fb5225671608e34583ac4e3766f9b6e765efeb1f71921366e30dcaad296f663

    SHA512

    bed83268a318d1efdada4fe7d683970d85386e9fdc702dd113ae15b77d81c9eef3c67fc8f17a0a153f5d915e9c6794aeb7a71e404ed52d0f937e07a962a55f9f

    Download Submit
  • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
    MD5

    039c7ff58d895d09b8197e81219c8a4c

    SHA1

    1d39f31f551e520a12eb8b86e87fa355685b8444

    SHA256

    7fb5225671608e34583ac4e3766f9b6e765efeb1f71921366e30dcaad296f663

    SHA512

    bed83268a318d1efdada4fe7d683970d85386e9fdc702dd113ae15b77d81c9eef3c67fc8f17a0a153f5d915e9c6794aeb7a71e404ed52d0f937e07a962a55f9f

    Download Submit
  • memory/636-115-0x0000000000000000-mapping.dmp
    Download
  • memory/636-118-0x0000000000740000-0x0000000000741000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1000-114-0x0000000000570000-0x000000000061E000-memory.dmp
    Filesize

    696KB

    Download