Analysis

  • max time kernel
    150s
  • max time network
    74s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 12:54

General

  • Target

    debae7a2cd4c5cb4bd680dea8425b08111f75271b052fd9b4e5e600a60af41da.exe

  • Size

    180KB

  • MD5

    11efa16fe9bae5f57fa495a89e6ddb77

  • SHA1

    1cb7a353fc406b78c74469308b3e78dc84d1a710

  • SHA256

    debae7a2cd4c5cb4bd680dea8425b08111f75271b052fd9b4e5e600a60af41da

  • SHA512

    b981e2698cec3dff6ac0a036f2ab1403e1bfc87bc96a5954716188449c88e5bc25a295afd4ed32ca354c5853c264dc614203178bf70b20a3419ee315fea26ed4

  • SSDEEP

    3072:1BlaPGH28Sk8qnF0O3x+cKzc855bi/OtsRKdoar:1Bl8gmOBkc85s/wsRKdR

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

ARAB MONEY

C2

munachim.linkpc.net:1608

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\debae7a2cd4c5cb4bd680dea8425b08111f75271b052fd9b4e5e600a60af41da.exe
    "C:\Users\Admin\AppData\Local\Temp\debae7a2cd4c5cb4bd680dea8425b08111f75271b052fd9b4e5e600a60af41da.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:564
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "dWlL00EZIN" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Xkr5kfwW\TNunIFX.exe.lnk"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1940
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "dWlL00EZIN" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Xkr5kfwW\TNunIFX.exe.lnk"
        3⤵
        • Adds Run key to start application
        PID:860
    • C:\Users\Admin\AppData\Local\Temp\debae7a2cd4c5cb4bd680dea8425b08111f75271b052fd9b4e5e600a60af41da.exe
      "C:\Users\Admin\AppData\Local\Temp\debae7a2cd4c5cb4bd680dea8425b08111f75271b052fd9b4e5e600a60af41da.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:848
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\debae7a2cd4c5cb4bd680dea8425b08111f75271b052fd9b4e5e600a60af41da.exe" "debae7a2cd4c5cb4bd680dea8425b08111f75271b052fd9b4e5e600a60af41da.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1776

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Roaming\Xkr5kfwW\TNunIFX.exe
    Filesize

    180KB

    MD5

    11efa16fe9bae5f57fa495a89e6ddb77

    SHA1

    1cb7a353fc406b78c74469308b3e78dc84d1a710

    SHA256

    debae7a2cd4c5cb4bd680dea8425b08111f75271b052fd9b4e5e600a60af41da

    SHA512

    b981e2698cec3dff6ac0a036f2ab1403e1bfc87bc96a5954716188449c88e5bc25a295afd4ed32ca354c5853c264dc614203178bf70b20a3419ee315fea26ed4

  • memory/564-54-0x0000000074AD1000-0x0000000074AD3000-memory.dmp
    Filesize

    8KB

  • memory/564-55-0x00000000740B0000-0x000000007465B000-memory.dmp
    Filesize

    5.7MB

  • memory/564-56-0x00000000740B0000-0x000000007465B000-memory.dmp
    Filesize

    5.7MB

  • memory/564-73-0x00000000740B0000-0x000000007465B000-memory.dmp
    Filesize

    5.7MB

  • memory/848-68-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/848-60-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/848-61-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/848-63-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/848-64-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/848-65-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/848-66-0x0000000000408B0E-mapping.dmp
  • memory/848-70-0x0000000000400000-0x000000000040E000-memory.dmp
    Filesize

    56KB

  • memory/848-72-0x00000000740B0000-0x000000007465B000-memory.dmp
    Filesize

    5.7MB

  • memory/848-76-0x00000000740B0000-0x000000007465B000-memory.dmp
    Filesize

    5.7MB

  • memory/860-59-0x0000000000000000-mapping.dmp
  • memory/1776-74-0x0000000000000000-mapping.dmp
  • memory/1940-58-0x0000000000000000-mapping.dmp