Resubmissions

12-01-2025 12:16

250112-pfv69s1rev 10

12-01-2025 11:50

250112-nzlw9s1lgx 10

Analysis

  • max time kernel
    900s
  • max time network
    896s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-01-2025 12:16

General

  • Target

    WindowsApp1.exe

  • Size

    477KB

  • MD5

    b5861d91a75a20e8811cefea4af1fe18

  • SHA1

    07defcf78334ffd145cdb4ff2e1163e257c4b957

  • SHA256

    5acde150ebdddc2fc69833d95691746d5c471dc08e74fe0aeb96d06670a536e7

  • SHA512

    072486eca2641fbb5efa4411a067d6c0658e71aed9a2521dd5e5321fab9ee490dfce0b11ea9c008ac054a007be5a8c2801c5a79662c30e984a756e8e7f26722a

  • SSDEEP

    12288:fqNB6ENSUO91dS039TrZgrirZXe1i709aEUpRegYyLs:+QEoUO3dS0tTxXeQ70W3

Malware Config

Extracted

Family

njrat

Version

<- NjRAT 0.7d Horror Edition ->

Botnet

F9t family

C2

japanese-cross.gl.at.ply.gg:16828

Mutex

0ecb0ae2cd4872c3a8e9ee19da99e4b8

Attributes
  • reg_key

    0ecb0ae2cd4872c3a8e9ee19da99e4b8

  • splitter

    Y262SUCZ4UJJ

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WindowsApp1.exe
    C:\Users\Admin\AppData\Local\Temp\WindowsApp1.exe cmd /c %SIGILL% "SIGTERM|DELETE|SIGKILL"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2492
    • C:\Users\Admin\AppData\Local\Temp\.exe
      "C:\Users\Admin\AppData\Local\Temp\.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2120

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    55KB

    MD5

    ac5ef973fc76ab6ff614dcb3bd452ce8

    SHA1

    9d50255db0555a85a5a951a603b751c1a9eb3212

    SHA256

    65fec5b3720c81dca478b5b2cd29b68732f3fbddfb4a76b59df691a2f264acb8

    SHA512

    620d6b1ee771ad9dab13e5a855733f216d00f2b98c35fad9c5b152210ed12214c01d6bd05665f8687210a75993ee0ae321b666deceaf0afcb796013f93379a3a

  • memory/2120-14-0x0000000074250000-0x00000000747FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2120-12-0x0000000074251000-0x0000000074252000-memory.dmp

    Filesize

    4KB

  • memory/2120-13-0x0000000074250000-0x00000000747FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2120-17-0x0000000074250000-0x00000000747FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2120-18-0x0000000074250000-0x00000000747FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2492-2-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-3-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-4-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-5-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-1-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-0-0x000007FEF569E000-0x000007FEF569F000-memory.dmp

    Filesize

    4KB

  • memory/2492-15-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

    Filesize

    9.6MB

  • memory/2492-16-0x000007FEF53E0000-0x000007FEF5D7D000-memory.dmp

    Filesize

    9.6MB