Analysis

  • max time kernel
    104s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-10-2023 21:29

General

  • Target

    5ecc27abe51073b88b4a027d104eb27bb6090bb88ee3f57042c391929809b0fe.exe

  • Size

    1.4MB

  • MD5

    6d7581ce66903505cdd302e804e98ccb

  • SHA1

    322c750a476e6bfcc870e32427388bdabdcf2118

  • SHA256

    5ecc27abe51073b88b4a027d104eb27bb6090bb88ee3f57042c391929809b0fe

  • SHA512

    81527134452d166b86e4375cd6f0f325a9711eef2a254baf2e049ff911ce5b56fa75c75ef94c79d9ec99fb76c45cb9888fb8547c1884d24b521a634876061758

  • SSDEEP

    24576:+TbBv5rUlIa9fkmnRRzYsrQZTnskmkORRQdKQPed9IvAIMpVNvi329DaR:ABRWfkqRRQnXOzQd3M+vAIMpb8IW

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

hakim32.ddns.net:2000

2.tcp.eu.ngrok.io:14984

Mutex

d43bf0cc9d9c8c523156a70be6624c0c

Attributes
  • reg_key

    d43bf0cc9d9c8c523156a70be6624c0c

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

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

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

  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 15 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5ecc27abe51073b88b4a027d104eb27bb6090bb88ee3f57042c391929809b0fe.exe
    "C:\Users\Admin\AppData\Local\Temp\5ecc27abe51073b88b4a027d104eb27bb6090bb88ee3f57042c391929809b0fe.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2400
    • C:\Users\Admin\AppData\Local\Temp\Server.exe
      "C:\Users\Admin\AppData\Local\Temp\Server.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4444
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Server.exe" "Server.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:4660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    93KB

    MD5

    4860e7cff8f6c17f114c3d68334b32b8

    SHA1

    65b652c5f5b558cb8f998e61008e18271939e4d9

    SHA256

    6cc35e4a049707cafdc7b9309b48eb9164a0b3bdd610794b17bb71a3ea04a983

    SHA512

    fe0966f953b0ee7f6b48f6a49c81f635d197815d3c62fb1ddf4f381e8238b5eb7efc7acbf478c4769682b8b4c78f4e09b3a022287e40b0f7d9f91f1e7df75cd5

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

    Filesize

    93KB

    MD5

    4860e7cff8f6c17f114c3d68334b32b8

    SHA1

    65b652c5f5b558cb8f998e61008e18271939e4d9

    SHA256

    6cc35e4a049707cafdc7b9309b48eb9164a0b3bdd610794b17bb71a3ea04a983

    SHA512

    fe0966f953b0ee7f6b48f6a49c81f635d197815d3c62fb1ddf4f381e8238b5eb7efc7acbf478c4769682b8b4c78f4e09b3a022287e40b0f7d9f91f1e7df75cd5

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

    Filesize

    93KB

    MD5

    4860e7cff8f6c17f114c3d68334b32b8

    SHA1

    65b652c5f5b558cb8f998e61008e18271939e4d9

    SHA256

    6cc35e4a049707cafdc7b9309b48eb9164a0b3bdd610794b17bb71a3ea04a983

    SHA512

    fe0966f953b0ee7f6b48f6a49c81f635d197815d3c62fb1ddf4f381e8238b5eb7efc7acbf478c4769682b8b4c78f4e09b3a022287e40b0f7d9f91f1e7df75cd5

  • memory/4444-11-0x0000000075410000-0x00000000759C1000-memory.dmp

    Filesize

    5.7MB

  • memory/4444-12-0x0000000075410000-0x00000000759C1000-memory.dmp

    Filesize

    5.7MB

  • memory/4444-13-0x0000000000950000-0x0000000000960000-memory.dmp

    Filesize

    64KB

  • memory/4444-15-0x0000000075410000-0x00000000759C1000-memory.dmp

    Filesize

    5.7MB

  • memory/4444-16-0x0000000075410000-0x00000000759C1000-memory.dmp

    Filesize

    5.7MB

  • memory/4444-17-0x0000000000950000-0x0000000000960000-memory.dmp

    Filesize

    64KB