Overview

overview

10

Static

static

VPekxMtU.exe

windows7_x64

10

VPekxMtU.exe

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    141s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    25-12-2020 21:33

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General

  • Target

    VPekxMtU.exe

  • Size

    23KB

  • MD5

    f0648c9a052f6709a419fcb293edfd51

  • SHA1

    4c06fd1436794ccb4852cd086bc21c54c5ec53b0

  • SHA256

    637c5a6da12669b77450722407c7b63a057e10b5b4f43e6b2ae5a833e9b721e4

  • SHA512

    d856d260bc9a041674fc1b041204b53b8f48d30b56ed7450a6a1a0d6a07352a002192d60ce42a08f506f57fab6390f000974f36133ae4d323e436e6b92f132bd

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

nonspam.hopto.org:1177

Mutex

d190b0faf733c7f5258ca76c3c3a2eb6

Attributes
  • reg_key

    d190b0faf733c7f5258ca76c3c3a2eb6

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • 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 33 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VPekxMtU.exe
    "C:\Users\Admin\AppData\Local\Temp\VPekxMtU.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:636
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:412
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
          PID:2300

    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\server.exe
      MD5

      f0648c9a052f6709a419fcb293edfd51

      SHA1

      4c06fd1436794ccb4852cd086bc21c54c5ec53b0

      SHA256

      637c5a6da12669b77450722407c7b63a057e10b5b4f43e6b2ae5a833e9b721e4

      SHA512

      d856d260bc9a041674fc1b041204b53b8f48d30b56ed7450a6a1a0d6a07352a002192d60ce42a08f506f57fab6390f000974f36133ae4d323e436e6b92f132bd

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

      f0648c9a052f6709a419fcb293edfd51

      SHA1

      4c06fd1436794ccb4852cd086bc21c54c5ec53b0

      SHA256

      637c5a6da12669b77450722407c7b63a057e10b5b4f43e6b2ae5a833e9b721e4

      SHA512

      d856d260bc9a041674fc1b041204b53b8f48d30b56ed7450a6a1a0d6a07352a002192d60ce42a08f506f57fab6390f000974f36133ae4d323e436e6b92f132bd

      Download Submit
    • memory/412-2-0x0000000000000000-mapping.dmp
      Download
    • memory/2300-5-0x0000000000000000-mapping.dmp
      Download