Analysis

  • max time kernel
    164s
  • max time network
    195s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 09:40

General

  • Target

    b19b00dd3fa38e697813259130d882e248ba27d324eca4f9d85a4144d101c2e2.exe

  • Size

    29KB

  • MD5

    1944974b7191fb7fad0058e8136a9cb1

  • SHA1

    ad931680d8a1c9ede6c20bbe3e754c9bc078d9ac

  • SHA256

    b19b00dd3fa38e697813259130d882e248ba27d324eca4f9d85a4144d101c2e2

  • SHA512

    94a8e36a9c096b1fd594ab06ee3072a8655322d7cbb0eb2d5173274408eaad01aa98ce0dccdcbc2ee24ebba51e07d0a794228f7f5e05a9c130d10c1d7835f9dd

  • SSDEEP

    768:iQv/27NYsDkfZPoIqlHepBKh0p29SgRcY:3m7N143wEKhG29jcY

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

mrrah.zapto.org:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 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). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b19b00dd3fa38e697813259130d882e248ba27d324eca4f9d85a4144d101c2e2.exe
    "C:\Users\Admin\AppData\Local\Temp\b19b00dd3fa38e697813259130d882e248ba27d324eca4f9d85a4144d101c2e2.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:976
    • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1564
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:572

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    29KB

    MD5

    1944974b7191fb7fad0058e8136a9cb1

    SHA1

    ad931680d8a1c9ede6c20bbe3e754c9bc078d9ac

    SHA256

    b19b00dd3fa38e697813259130d882e248ba27d324eca4f9d85a4144d101c2e2

    SHA512

    94a8e36a9c096b1fd594ab06ee3072a8655322d7cbb0eb2d5173274408eaad01aa98ce0dccdcbc2ee24ebba51e07d0a794228f7f5e05a9c130d10c1d7835f9dd

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

    Filesize

    29KB

    MD5

    1944974b7191fb7fad0058e8136a9cb1

    SHA1

    ad931680d8a1c9ede6c20bbe3e754c9bc078d9ac

    SHA256

    b19b00dd3fa38e697813259130d882e248ba27d324eca4f9d85a4144d101c2e2

    SHA512

    94a8e36a9c096b1fd594ab06ee3072a8655322d7cbb0eb2d5173274408eaad01aa98ce0dccdcbc2ee24ebba51e07d0a794228f7f5e05a9c130d10c1d7835f9dd

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

    Filesize

    29KB

    MD5

    1944974b7191fb7fad0058e8136a9cb1

    SHA1

    ad931680d8a1c9ede6c20bbe3e754c9bc078d9ac

    SHA256

    b19b00dd3fa38e697813259130d882e248ba27d324eca4f9d85a4144d101c2e2

    SHA512

    94a8e36a9c096b1fd594ab06ee3072a8655322d7cbb0eb2d5173274408eaad01aa98ce0dccdcbc2ee24ebba51e07d0a794228f7f5e05a9c130d10c1d7835f9dd

  • memory/572-62-0x0000000000000000-mapping.dmp

  • memory/976-54-0x0000000075E61000-0x0000000075E63000-memory.dmp

    Filesize

    8KB

  • memory/976-55-0x0000000074900000-0x0000000074EAB000-memory.dmp

    Filesize

    5.7MB

  • memory/976-61-0x0000000074900000-0x0000000074EAB000-memory.dmp

    Filesize

    5.7MB

  • memory/1564-57-0x0000000000000000-mapping.dmp

  • memory/1564-63-0x0000000074900000-0x0000000074EAB000-memory.dmp

    Filesize

    5.7MB

  • memory/1564-65-0x0000000074900000-0x0000000074EAB000-memory.dmp

    Filesize

    5.7MB