Analysis

  • max time kernel
    114s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-08-2024 11:39

General

  • Target

    4200858d961c9ad4109c010a4d6d9ca0N.exe

  • Size

    116KB

  • MD5

    4200858d961c9ad4109c010a4d6d9ca0

  • SHA1

    443a330e385075c62b9f304efadbf3726e1db5f5

  • SHA256

    77544fc1f622eebcb73f655d769b8896a043726370937f09d37939d00d4a4afe

  • SHA512

    8ba046431a379aa1bbef418392621c58347b51ea982dc9dabcdcbdc8979fdf4f96a9df1812c379ce0550c5ed928fdf1d9a9f7d3a7e28b81e8072b703ebcd09be

  • SSDEEP

    1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDpR:P5eznsjsguGDFqGZ2rD7

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes
  • reg_key

    e1a87040f2026369a233f9ae76301b7b

  • splitter

    |'|'|

Signatures

  • 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.

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 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 4 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4200858d961c9ad4109c010a4d6d9ca0N.exe
    "C:\Users\Admin\AppData\Local\Temp\4200858d961c9ad4109c010a4d6d9ca0N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2232
    • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
      "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4440
      • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2856
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe" "chargeable.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:3196

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\chargeable.exe.log

    Filesize

    400B

    MD5

    0a9b4592cd49c3c21f6767c2dabda92f

    SHA1

    f534297527ae5ccc0ecb2221ddeb8e58daeb8b74

    SHA256

    c7effe9cb81a70d738dee863991afefab040290d4c4b78b4202383bcb9f88fcd

    SHA512

    6b878df474e5bbfb8e9e265f15a76560c2ef151dcebc6388c82d7f6f86ffaf83f5ade5a09f1842e493cb6c8fd63b0b88d088c728fd725f7139f965a5ee332307

  • C:\Users\Admin\AppData\Roaming\confuse\chargeable.exe

    Filesize

    116KB

    MD5

    e15bc055603be08f3fb3e6acb0ff43bd

    SHA1

    2e35dc80b46a7b874e36851d276740a864fa1f28

    SHA256

    85e9725c8b03f25d418217c6dad8e1ebaf2f692b0d69020670a428d17225f34f

    SHA512

    f3214695e896355cdda1b2c2e56ef9886c5bf2f9467d78366ac970aff42f5d0cd155a27e49b0ef9075308d52e9155b716ca3f7f13c7c737370419be784db6fa8

  • memory/2232-1-0x00000000750C0000-0x0000000075671000-memory.dmp

    Filesize

    5.7MB

  • memory/2232-2-0x00000000750C0000-0x0000000075671000-memory.dmp

    Filesize

    5.7MB

  • memory/2232-6-0x00000000750C2000-0x00000000750C3000-memory.dmp

    Filesize

    4KB

  • memory/2232-7-0x00000000750C0000-0x0000000075671000-memory.dmp

    Filesize

    5.7MB

  • memory/2232-19-0x00000000750C0000-0x0000000075671000-memory.dmp

    Filesize

    5.7MB

  • memory/2232-20-0x00000000750C0000-0x0000000075671000-memory.dmp

    Filesize

    5.7MB

  • memory/2232-0-0x00000000750C2000-0x00000000750C3000-memory.dmp

    Filesize

    4KB

  • memory/2856-27-0x00000000750C0000-0x0000000075671000-memory.dmp

    Filesize

    5.7MB

  • memory/2856-23-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/2856-29-0x00000000750C0000-0x0000000075671000-memory.dmp

    Filesize

    5.7MB

  • memory/2856-30-0x00000000750C0000-0x0000000075671000-memory.dmp

    Filesize

    5.7MB

  • memory/4440-22-0x00000000750C0000-0x0000000075671000-memory.dmp

    Filesize

    5.7MB

  • memory/4440-21-0x00000000750C0000-0x0000000075671000-memory.dmp

    Filesize

    5.7MB

  • memory/4440-28-0x00000000750C0000-0x0000000075671000-memory.dmp

    Filesize

    5.7MB