Resubmissions

03/02/2025, 21:57

250203-1t5hmsvmat 10

03/02/2025, 04:37

250203-e896saslgn 10

31/01/2025, 18:35

250131-w8gmxatmc1 10

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250128-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250128-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    03/02/2025, 21:57

General

  • Target

    bazaar.2020.02/Trojan.MSIL.Disfa.exe

  • Size

    29KB

  • MD5

    459b4e64ad1d0dc32ca057b7ef0fd110

  • SHA1

    0e618bc238f50490089c30b86b32ac109b35e4fe

  • SHA256

    8b635dcdeacc541a398e5862d13ea54004302b8c06b63a2db0ddc7c6528e804f

  • SHA512

    afc24d488456dcba898b588cb1515cd3db88b2640ec4b69969cc2d36683cf89da5aec70defb7babfbca2f060e1f07ab8d91c6ab020a29b7368a5b8d62b1300b7

  • SSDEEP

    384:KhQXpl7dzns8oDw/LRP55/4GWmqDSeXegLGBsbh0w4wlAokw9OhgOL1vYRGOZzp9:KE7Js8oDSJz4wqZXenBKh0p29SgRjb

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

saleh200.hopto.org:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • splitter

    |'|'|

Signatures

  • Njrat family
  • 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.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 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).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Trojan.MSIL.Disfa.exe
    "C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\Trojan.MSIL.Disfa.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2528
    • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2628
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:4416

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    29KB

    MD5

    459b4e64ad1d0dc32ca057b7ef0fd110

    SHA1

    0e618bc238f50490089c30b86b32ac109b35e4fe

    SHA256

    8b635dcdeacc541a398e5862d13ea54004302b8c06b63a2db0ddc7c6528e804f

    SHA512

    afc24d488456dcba898b588cb1515cd3db88b2640ec4b69969cc2d36683cf89da5aec70defb7babfbca2f060e1f07ab8d91c6ab020a29b7368a5b8d62b1300b7

  • memory/2528-0-0x00000000747C2000-0x00000000747C3000-memory.dmp

    Filesize

    4KB

  • memory/2528-1-0x00000000747C0000-0x0000000074D71000-memory.dmp

    Filesize

    5.7MB

  • memory/2528-2-0x00000000747C0000-0x0000000074D71000-memory.dmp

    Filesize

    5.7MB

  • memory/2528-5-0x00000000747C0000-0x0000000074D71000-memory.dmp

    Filesize

    5.7MB

  • memory/2628-6-0x00000000747C0000-0x0000000074D71000-memory.dmp

    Filesize

    5.7MB

  • memory/2628-7-0x00000000747C0000-0x0000000074D71000-memory.dmp

    Filesize

    5.7MB

  • memory/2628-8-0x00000000747C0000-0x0000000074D71000-memory.dmp

    Filesize

    5.7MB

  • memory/2628-9-0x00000000747C0000-0x0000000074D71000-memory.dmp

    Filesize

    5.7MB

  • memory/2628-10-0x00000000747C0000-0x0000000074D71000-memory.dmp

    Filesize

    5.7MB