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Analysis

  • max time kernel
    141s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/10/2024, 17:58

General

  • Target

    5de9dcc57b578bf915e553ae272269dc_JaffaCakes118.exe

  • Size

    684KB

  • MD5

    5de9dcc57b578bf915e553ae272269dc

  • SHA1

    162ef6514901b7783261eb12f68f8798dc0e8f3d

  • SHA256

    5b14d9674cbd536403423c9822182497469034a86ad12ced50ab02bdc9166cce

  • SHA512

    98f2d30c39ef4706ed95579dfccf6e6637b5643c06c41dcc0dd4f61f6628f1d9691684b92699045b80486313fbb9d076e734419d83e31a036c36a1e30cd7dff5

  • SSDEEP

    6144:XkKRDBCU++To9SLXGvRitOcpuAtk42a85SZvmSj/IHhiohh0RZHy4Y4uGtBzcVT:PgSLGI4AgJ5SZ9QHhhCXqGPz

Malware Config

Extracted

Family

blacknet

Version

v3.7.0 Public

Botnet

D7tJ7v

C2

http://officialcomerce1.xyz/lee

Mutex

BN[f9a1b17a]

Attributes
  • antivm

    false

  • elevate_uac

    false

  • install_name

    WindowsUpdate.exe

  • splitter

    |BN|

  • start_name

    e162b1333458a713bc6916cc8ac4110c

  • startup

    false

  • usb_spread

    false

Signatures

  • BlackNET

    BlackNET is an open source remote access tool written in VB.NET.

  • BlackNET payload 1 IoCs
  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 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 5 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5de9dcc57b578bf915e553ae272269dc_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\5de9dcc57b578bf915e553ae272269dc_JaffaCakes118.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2464
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TiqvqaWbL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp46C8.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2064
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:1296
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1756
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c ping 1.1.1.1 -n 5 -w 5000 > Nul & Del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
          3⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Suspicious use of WriteProcessMemory
          PID:1280
          • C:\Windows\SysWOW64\PING.EXE
            ping 1.1.1.1 -n 5 -w 5000
            4⤵
            • System Location Discovery: System Language Discovery
            • System Network Configuration Discovery: Internet Connection Discovery
            • Runs ping.exe
            PID:536

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp46C8.tmp

      Filesize

      1KB

      MD5

      fa991282c015d583800c4d01e8af5b3a

      SHA1

      6c61731d6bd848dbc51734b58e646e904bfe7080

      SHA256

      421f03c3ac9880cd07c37f877e11bcb882d5edd5cc8ba39269dec63040b6231c

      SHA512

      3244c75c397e28f031e7b83a99050393e4bd7eb146612094686e1ab16f1923697c898119a26eea88c886d3fd700bb82792841659becca929867b0a21c1a5dd6b

    • memory/1756-24-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/1756-22-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/1756-21-0x00000000053D0000-0x0000000005426000-memory.dmp

      Filesize

      344KB

    • memory/1756-20-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/1756-18-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/1756-16-0x0000000000400000-0x000000000041E000-memory.dmp

      Filesize

      120KB

    • memory/2464-5-0x0000000005690000-0x000000000569A000-memory.dmp

      Filesize

      40KB

    • memory/2464-6-0x0000000006A90000-0x0000000006A98000-memory.dmp

      Filesize

      32KB

    • memory/2464-9-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/2464-10-0x000000000A7D0000-0x000000000A846000-memory.dmp

      Filesize

      472KB

    • memory/2464-11-0x000000000A6C0000-0x000000000A6E8000-memory.dmp

      Filesize

      160KB

    • memory/2464-12-0x000000000A6F0000-0x000000000A756000-memory.dmp

      Filesize

      408KB

    • memory/2464-7-0x0000000006B40000-0x0000000006BDC000-memory.dmp

      Filesize

      624KB

    • memory/2464-8-0x00000000744DE000-0x00000000744DF000-memory.dmp

      Filesize

      4KB

    • memory/2464-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

      Filesize

      4KB

    • memory/2464-19-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/2464-4-0x00000000744D0000-0x0000000074C80000-memory.dmp

      Filesize

      7.7MB

    • memory/2464-3-0x0000000005500000-0x0000000005592000-memory.dmp

      Filesize

      584KB

    • memory/2464-2-0x0000000005A10000-0x0000000005FB4000-memory.dmp

      Filesize

      5.6MB

    • memory/2464-1-0x0000000000A80000-0x0000000000B32000-memory.dmp

      Filesize

      712KB