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Analysis

  • max time kernel
    116s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/10/2024, 19:02

General

  • Target

    98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe

  • Size

    117KB

  • MD5

    6eefb4f44dfecd1aff72270ce996d260

  • SHA1

    ca44fdb831b46dfee3ceb04a52bb111d9cfec7a7

  • SHA256

    98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61df

  • SHA512

    8bcf0f60850a2a3c1808eeff9350cd4249a8156495c61c9af2ccaa049a9506cc0a0b1b5db9cd09b31399f0ba47eb50969f4f215be13aa6a26927ebbb63696bd1

  • SSDEEP

    1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuMDLVH:P5eznsjsguGDFqGZ2rDLt

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

neuf

C2

doddyfire.linkpc.net:10000

Mutex

e1a87040f2026369a233f9ae76301b7b

Attributes
  • reg_key

    e1a87040f2026369a233f9ae76301b7b

  • 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.

  • 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\98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe
    "C:\Users\Admin\AppData\Local\Temp\98f649cb49b476d4446f2305e67c5394dd6e28b168683d8f9995d0a1c1eb61dfN.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3396
    • 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:2564
      • 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:4548
        • 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:4476

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

    117KB

    MD5

    9316e1a1e08ca69c45b3bb4621fb821c

    SHA1

    d6942a801969d6088e76a51f6a8ff7fb5b9ed72f

    SHA256

    97bf16d6abcce3517da04ed0ffd219d591e670ae1cbbbfb89e0214b690fbddb6

    SHA512

    adfd361a78cbbc3998d13a3db14f13f1c440a787c78e98e74475afd8f49117b520623d7f75e9f854af1878cb4de7fd7c6273bdb4277b516c3d9aac5df720ff9c

  • memory/2564-27-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/2564-22-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/2564-21-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/3396-7-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/3396-19-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/3396-20-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/3396-0-0x0000000074EC2000-0x0000000074EC3000-memory.dmp

    Filesize

    4KB

  • memory/3396-6-0x0000000074EC2000-0x0000000074EC3000-memory.dmp

    Filesize

    4KB

  • memory/3396-2-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/3396-1-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/4548-23-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/4548-28-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/4548-30-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/4548-29-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB

  • memory/4548-31-0x0000000074EC0000-0x0000000075471000-memory.dmp

    Filesize

    5.7MB