Analysis

  • max time kernel
    114s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-08-2024 01:04

General

  • Target

    b3b8760694afb936a598a3c8ac476080N.exe

  • Size

    114KB

  • MD5

    b3b8760694afb936a598a3c8ac476080

  • SHA1

    caad05a5fde719bafa3f1acf96b0a61604b1d579

  • SHA256

    36d1196e9a0ed69fc4648f126c265a3c5d7be8891ed3cba9265ec73e59b2f460

  • SHA512

    ae4b1116a381797944069ef2e4b2746e3cabf63ef6aeede455ece3eb8e7b55ce7c1658d157a29f3b1a82e81cf1b830f9804fdd0400eeeb38d97cd0fad6689318

  • SSDEEP

    1536:WWp5eznKUlIOp3YjVCguHEvQEbFqVC3woFRKpT4XEQhuxzuM16:P5eznsjsguGDFqGZ2rY

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\b3b8760694afb936a598a3c8ac476080N.exe
    "C:\Users\Admin\AppData\Local\Temp\b3b8760694afb936a598a3c8ac476080N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1116
    • 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:4548
      • 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:3760
        • 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:2424

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

    114KB

    MD5

    5042183b4cb72a3e9ac45e3eff55d1b1

    SHA1

    11f21768f23d0aae19d03f2f6445876af9aec289

    SHA256

    19b691b5c90e0c1df7e92d81d72b3ecf627da070dee0e19d08d4033039ec9fd9

    SHA512

    92502890c6e3b9b5327266969f18b08f4a01be6af77c9849dfe2718fb292135d5dcb95911e9f4e2276a33d4676cb784cbddf163a47f19a089f2d3c3d4507946c

  • memory/1116-0-0x00000000748C2000-0x00000000748C3000-memory.dmp

    Filesize

    4KB

  • memory/1116-1-0x00000000748C0000-0x0000000074E71000-memory.dmp

    Filesize

    5.7MB

  • memory/1116-16-0x00000000748C0000-0x0000000074E71000-memory.dmp

    Filesize

    5.7MB

  • memory/3760-19-0x0000000000400000-0x000000000040C000-memory.dmp

    Filesize

    48KB

  • memory/3760-24-0x00000000748C0000-0x0000000074E71000-memory.dmp

    Filesize

    5.7MB

  • memory/3760-25-0x00000000748C0000-0x0000000074E71000-memory.dmp

    Filesize

    5.7MB

  • memory/4548-17-0x00000000748C0000-0x0000000074E71000-memory.dmp

    Filesize

    5.7MB

  • memory/4548-18-0x00000000748C0000-0x0000000074E71000-memory.dmp

    Filesize

    5.7MB

  • memory/4548-23-0x00000000748C0000-0x0000000074E71000-memory.dmp

    Filesize

    5.7MB