Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 11:06

General

  • Target

    8edcf97df9e24756e8700a4496dd92d3677fc835925a90d1c48914e369b7f651.exe

  • Size

    102KB

  • MD5

    b04423987d7a01ca1bf5b1f8f2b77b0c

  • SHA1

    6468823f6da30059a2750cf2b4599fdb8e450f05

  • SHA256

    8edcf97df9e24756e8700a4496dd92d3677fc835925a90d1c48914e369b7f651

  • SHA512

    c709012177a1d05939e92218111a0e08520166179de4353cc576e88e609fdbf556a99afa3175193a4b7d5d5b38f6688458d0e2e50f549e6f159b46f78bc1b295

  • SSDEEP

    1536:TcTbDj6OLC73ybzlr6kI+KEBXiI40n6aDnOae98fAaMGSSpvvKet2Hbq86Dm:TcX6OWqzlUUBSpE6aDOOvvNtP86Dm

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

nEwHacKed

C2

slowburn.linkpc.net:6760

Mutex

a5e14c6feeac7389fad3a06801dddd4f

Attributes
  • reg_key

    a5e14c6feeac7389fad3a06801dddd4f

  • splitter

    |'|'|

Extracted

Family

pony

C2

http://slow1234.serveftp.com/duos/gate.php

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Pony,Fareit

    Pony is a Remote Access Trojan application that steals information.

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • UPX packed file 5 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

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

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

  • Suspicious behavior: EnumeratesProcesses 47 IoCs
  • Suspicious use of AdjustPrivilegeToken 50 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8edcf97df9e24756e8700a4496dd92d3677fc835925a90d1c48914e369b7f651.exe
    "C:\Users\Admin\AppData\Local\Temp\8edcf97df9e24756e8700a4496dd92d3677fc835925a90d1c48914e369b7f651.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3796
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\reader\adobe.exe,explorer.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4992
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\reader\adobe.exe,explorer.exe"
        3⤵
        • Modifies WinLogon for persistence
        PID:3652
    • C:\Users\Admin\AppData\Local\Temp\8edcf97df9e24756e8700a4496dd92d3677fc835925a90d1c48914e369b7f651.exe
      "C:\Users\Admin\AppData\Local\Temp\8edcf97df9e24756e8700a4496dd92d3677fc835925a90d1c48914e369b7f651.exe"
      2⤵
      • Accesses Microsoft Outlook accounts
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_win_path
      PID:4812
    • C:\Users\Admin\AppData\Local\Temp\njratbin.exe
      "C:\Users\Admin\AppData\Local\Temp\njratbin.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4528
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\njratbin.exe" "njratbin.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1236

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\njratbin.exe

    Filesize

    29KB

    MD5

    007a4bd3c704a1ddd7d1b04ee9d91c27

    SHA1

    60843e7a18316d258afba4690a5ecc62c1045795

    SHA256

    4442506b3211c38811543e2aad5bf276d075734f7967d83a2b3117bc4bad044a

    SHA512

    e9678f517dbfd58ea51e93576988660d6447b479a61b478a91de7edf6057825a7a8e08d7a147514c6c9d5c2ef11e469de9ee729db2f95ef96c72eeb7e98a4838

  • C:\Users\Admin\AppData\Local\Temp\njratbin.exe

    Filesize

    29KB

    MD5

    007a4bd3c704a1ddd7d1b04ee9d91c27

    SHA1

    60843e7a18316d258afba4690a5ecc62c1045795

    SHA256

    4442506b3211c38811543e2aad5bf276d075734f7967d83a2b3117bc4bad044a

    SHA512

    e9678f517dbfd58ea51e93576988660d6447b479a61b478a91de7edf6057825a7a8e08d7a147514c6c9d5c2ef11e469de9ee729db2f95ef96c72eeb7e98a4838

  • memory/1236-144-0x0000000000000000-mapping.dmp

  • memory/3652-134-0x0000000000000000-mapping.dmp

  • memory/3796-143-0x00000000753C0000-0x0000000075971000-memory.dmp

    Filesize

    5.7MB

  • memory/3796-132-0x00000000753C0000-0x0000000075971000-memory.dmp

    Filesize

    5.7MB

  • memory/4528-148-0x00000000753C0000-0x0000000075971000-memory.dmp

    Filesize

    5.7MB

  • memory/4528-146-0x00000000753C0000-0x0000000075971000-memory.dmp

    Filesize

    5.7MB

  • memory/4528-138-0x0000000000000000-mapping.dmp

  • memory/4812-141-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/4812-142-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/4812-136-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/4812-145-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/4812-135-0x0000000000000000-mapping.dmp

  • memory/4812-147-0x0000000000400000-0x000000000041D000-memory.dmp

    Filesize

    116KB

  • memory/4992-133-0x0000000000000000-mapping.dmp