Overview

overview

10

Static

static

z2d6Yt5v.exe

windows7_x64

10

z2d6Yt5v.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    21-11-2020 23:18

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General

  • Target

    z2d6Yt5v.exe

  • Size

    23KB

  • MD5

    9bb6d4f72a348ad47cc97185604f4dd9

  • SHA1

    7384957e8a29f517654fcbd905861574e772d3ed

  • SHA256

    0a170ca414d288bc25ebb5ce92ccd51ff0f62b1479d669172194bf0067601df1

  • SHA512

    3a1e4c94afd24c89a256deca640467c833547fe431c2041f3afc6fafdd3551f7d4f14edfa5be6099901d4bb38526fdfe197702dd334c74d98951887187cf2c48

Score
10/10
njratbouffonevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Bouffon

C2

noiphack93.hopto.org:5553

Mutex

af48625ee196d906557ab2d838a9cc2f

Attributes
  • reg_key

    af48625ee196d906557ab2d838a9cc2f

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\z2d6Yt5v.exe
    "C:\Users\Admin\AppData\Local\Temp\z2d6Yt5v.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:364
    • C:\Users\Admin\AppData\Local\Temp\Core Service.exe
      "C:\Users\Admin\AppData\Local\Temp\Core Service.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1680
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Core Service.exe" "Core Service.exe" ENABLE
        3⤵
          PID:848

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Core Service.exe
      MD5

      9bb6d4f72a348ad47cc97185604f4dd9

      SHA1

      7384957e8a29f517654fcbd905861574e772d3ed

      SHA256

      0a170ca414d288bc25ebb5ce92ccd51ff0f62b1479d669172194bf0067601df1

      SHA512

      3a1e4c94afd24c89a256deca640467c833547fe431c2041f3afc6fafdd3551f7d4f14edfa5be6099901d4bb38526fdfe197702dd334c74d98951887187cf2c48

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\Core Service.exe
      MD5

      9bb6d4f72a348ad47cc97185604f4dd9

      SHA1

      7384957e8a29f517654fcbd905861574e772d3ed

      SHA256

      0a170ca414d288bc25ebb5ce92ccd51ff0f62b1479d669172194bf0067601df1

      SHA512

      3a1e4c94afd24c89a256deca640467c833547fe431c2041f3afc6fafdd3551f7d4f14edfa5be6099901d4bb38526fdfe197702dd334c74d98951887187cf2c48

      Download Submit
    • \Users\Admin\AppData\Local\Temp\Core Service.exe
      MD5

      9bb6d4f72a348ad47cc97185604f4dd9

      SHA1

      7384957e8a29f517654fcbd905861574e772d3ed

      SHA256

      0a170ca414d288bc25ebb5ce92ccd51ff0f62b1479d669172194bf0067601df1

      SHA512

      3a1e4c94afd24c89a256deca640467c833547fe431c2041f3afc6fafdd3551f7d4f14edfa5be6099901d4bb38526fdfe197702dd334c74d98951887187cf2c48

      Download Submit
    • memory/848-4-0x0000000000000000-mapping.dmp
      Download
    • memory/1680-1-0x0000000000000000-mapping.dmp
      Download