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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    18/01/2024, 06:09

General

  • Target

    7c4da1ee111a7d7a9e5330c320ab947e1750b261f10752544d554745b266f319.exe

  • Size

    93KB

  • MD5

    36b911da6d9248ad4b683901b0460612

  • SHA1

    02b48d75fea67a4cbcea96857f82d220aff9782a

  • SHA256

    7c4da1ee111a7d7a9e5330c320ab947e1750b261f10752544d554745b266f319

  • SHA512

    7c284d23072ee1064ba88964c6ba974b7f307df8d4a7d569b89d1ae271c0c2b054afe468abceb53f987482e85fd7ee73d8443ad8343c3b71ccdd2025ad9c9f92

  • SSDEEP

    1536:vCwC+xhUa9urgOBPRNvM4jEwzGi1dDLDogS:vCmUa9urgObdGi1dbR

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

hakim32.ddns.net:2000

fallenvrsdo7ne.ddns.net:1177

Mutex

a22a0a6dceeda228b546e36a480dbdfb

Attributes
  • reg_key

    a22a0a6dceeda228b546e36a480dbdfb

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Drops startup file 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c4da1ee111a7d7a9e5330c320ab947e1750b261f10752544d554745b266f319.exe
    "C:\Users\Admin\AppData\Local\Temp\7c4da1ee111a7d7a9e5330c320ab947e1750b261f10752544d554745b266f319.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2880
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2776
      • 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:2736

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\app

    Filesize

    5B

    MD5

    410c3c7c3e0376e2f9b228980b58d042

    SHA1

    3aec3fa12cd88edca90fdc72a0d25cd071dc2052

    SHA256

    5c272042cede2596555e6b6f2c36857b015ccab9f34affbc63d6b000ccd08391

    SHA512

    2a1e382b045d59580271cb05b521d0c6e99772be7cd5ce38d3e5e1997a4cb9d3fe5d424a24c67383a5a2d0002d4a2194f71e1604fa9ff0199944f8cee9b26a57

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

    Filesize

    93KB

    MD5

    36b911da6d9248ad4b683901b0460612

    SHA1

    02b48d75fea67a4cbcea96857f82d220aff9782a

    SHA256

    7c4da1ee111a7d7a9e5330c320ab947e1750b261f10752544d554745b266f319

    SHA512

    7c284d23072ee1064ba88964c6ba974b7f307df8d4a7d569b89d1ae271c0c2b054afe468abceb53f987482e85fd7ee73d8443ad8343c3b71ccdd2025ad9c9f92

  • memory/2776-15-0x0000000074370000-0x000000007491B000-memory.dmp

    Filesize

    5.7MB

  • memory/2776-16-0x00000000001F0000-0x0000000000230000-memory.dmp

    Filesize

    256KB

  • memory/2776-17-0x0000000074370000-0x000000007491B000-memory.dmp

    Filesize

    5.7MB

  • memory/2776-29-0x0000000074370000-0x000000007491B000-memory.dmp

    Filesize

    5.7MB

  • memory/2776-30-0x00000000001F0000-0x0000000000230000-memory.dmp

    Filesize

    256KB

  • memory/2880-0-0x0000000074370000-0x000000007491B000-memory.dmp

    Filesize

    5.7MB

  • memory/2880-1-0x0000000000860000-0x00000000008A0000-memory.dmp

    Filesize

    256KB

  • memory/2880-2-0x0000000074370000-0x000000007491B000-memory.dmp

    Filesize

    5.7MB

  • memory/2880-14-0x0000000074370000-0x000000007491B000-memory.dmp

    Filesize

    5.7MB