Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-02-2024 05:41

General

  • Target

    e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd.exe

  • Size

    184KB

  • MD5

    021b477ace5e87113272fd8b16830051

  • SHA1

    d55ddb61b67e53245adc5bd12822ea56f1602820

  • SHA256

    e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd

  • SHA512

    ef8c8ff1ff3326848becef2615bd2a629dd1eced13c9b9776d75f3a5cfd2e913324422f806264126befdd0d6908d16be081218ab61fe20ef95111cf9a41c8817

  • SSDEEP

    3072:qUZiBJUB7JXbbkiTIR4JQffGaJNnN7SD+631zmh6Ty1:hiBWBdbkiTIR4ufGaJNnN7SC631zmh6+

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

18.ip.gl.ply.gg:43389

Mutex

4ac5522ba6619835b9ac056e603570c4

Attributes
  • reg_key

    4ac5522ba6619835b9ac056e603570c4

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd.exe
    "C:\Users\Admin\AppData\Local\Temp\e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1092
    • C:\Users\Admin\AppData\Local\Temp\e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd.exe
      C:\Users\Admin\AppData\Local\Temp\e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd.exe
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:2164
      • C:\Users\Admin\AppData\Local\Temp\server.exe
        "C:\Users\Admin\AppData\Local\Temp\server.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2352
        • C:\Users\Admin\AppData\Local\Temp\server.exe
          C:\Users\Admin\AppData\Local\Temp\server.exe
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1988
          • C:\Windows\SysWOW64\netsh.exe
            netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
            5⤵
            • Modifies Windows Firewall
            PID:3668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd.exe.log

    Filesize

    224B

    MD5

    9c4b66f77f12558c48b620ddfb44029d

    SHA1

    446651db643b943ec37b9b3599655e211a4bc73e

    SHA256

    42f723d18283fda6a0904046cc29ee8d10e562d20c7615259a46ae9c0e4c9708

    SHA512

    983aed0ec15a79b716ac6dc080146e4ed098c117c31167053fb5971649dc621d1db5292fdd76f3010f094b75d57ea0bdb35bc829c6ba37e4d276b266361dee8e

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

    Filesize

    184KB

    MD5

    021b477ace5e87113272fd8b16830051

    SHA1

    d55ddb61b67e53245adc5bd12822ea56f1602820

    SHA256

    e31f4f05884e97c569d6641257f40c4634004565874178c122817538e89948bd

    SHA512

    ef8c8ff1ff3326848becef2615bd2a629dd1eced13c9b9776d75f3a5cfd2e913324422f806264126befdd0d6908d16be081218ab61fe20ef95111cf9a41c8817

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

    Filesize

    81KB

    MD5

    db9c6b9fcf413dce849ba52039c130e3

    SHA1

    bc4bfb4e140963fcdbdcf7cf0cd38e13f3ecdf36

    SHA256

    7d9278f9a6f5f1830241f813c51a7f0ca2958b4caef2da4858ef4ba810bd150f

    SHA512

    1fc26cc190662f64a92742d587f2728f72aab8b7718929214e58b081d4d6d9d4961014441cd4e8f5e491dd34b844559f59550ac4d382a53ca89b40b283e9b2fd

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

    Filesize

    126KB

    MD5

    d08bef3f48fc0574a61f2bc7a4525013

    SHA1

    f69c247683e534c4e25ed1424849e7f273a3a380

    SHA256

    d84be1e1750dc489209e3c5dd1681c7e0a208a1b6657ae1d363979da22e44dac

    SHA512

    eea8445b2ea99083962cb98ab65df2db2a89a80c63ae017c5ea52440500ba0683a0a4a9c54d830b427e48900462ef15f2bac633f89bb377c3f25e53f91f02f58

  • memory/1092-7-0x0000000074E20000-0x00000000753D1000-memory.dmp

    Filesize

    5.7MB

  • memory/1092-0-0x0000000074E20000-0x00000000753D1000-memory.dmp

    Filesize

    5.7MB

  • memory/1092-2-0x0000000000D20000-0x0000000000D30000-memory.dmp

    Filesize

    64KB

  • memory/1092-1-0x0000000074E20000-0x00000000753D1000-memory.dmp

    Filesize

    5.7MB

  • memory/1988-31-0x0000000001140000-0x0000000001150000-memory.dmp

    Filesize

    64KB

  • memory/1988-33-0x0000000074E20000-0x00000000753D1000-memory.dmp

    Filesize

    5.7MB

  • memory/1988-32-0x0000000001140000-0x0000000001150000-memory.dmp

    Filesize

    64KB

  • memory/1988-30-0x0000000074E20000-0x00000000753D1000-memory.dmp

    Filesize

    5.7MB

  • memory/2164-3-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2164-21-0x0000000074E20000-0x00000000753D1000-memory.dmp

    Filesize

    5.7MB

  • memory/2164-9-0x0000000074E20000-0x00000000753D1000-memory.dmp

    Filesize

    5.7MB

  • memory/2164-8-0x0000000001320000-0x0000000001330000-memory.dmp

    Filesize

    64KB

  • memory/2164-6-0x0000000074E20000-0x00000000753D1000-memory.dmp

    Filesize

    5.7MB

  • memory/2352-23-0x0000000000650000-0x0000000000660000-memory.dmp

    Filesize

    64KB

  • memory/2352-24-0x0000000074E20000-0x00000000753D1000-memory.dmp

    Filesize

    5.7MB

  • memory/2352-29-0x0000000074E20000-0x00000000753D1000-memory.dmp

    Filesize

    5.7MB

  • memory/2352-22-0x0000000074E20000-0x00000000753D1000-memory.dmp

    Filesize

    5.7MB