Overview

overview

10

Static

static

10

ee03859836...ca.exe

windows7_x64

10

ee03859836...ca.exe

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    30-10-2021 20:36

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General

  • Target

    ee0385983682322efe022225fb874aca.exe

  • Size

    37KB

  • MD5

    ee0385983682322efe022225fb874aca

  • SHA1

    e234165631472c98a62107356a2b55a8e9f8b5a1

  • SHA256

    5fa5bb5bf065b701ecbbbd704e302ca70eff2912cee39fd86f2b732372eb44f3

  • SHA512

    b72cf0802d84874b1a8101793694a25051ef8460383d73a02552fe4e945517f7c40b7654fcc7b864985bd49d3b1a5e33792625c6483e7e3be6dfe9b909a424c9

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

4.tcp.ngrok.io:12516

Mutex

004af031f7d2d163aaa3cb0e51c1f6fe

Attributes
  • reg_key

    004af031f7d2d163aaa3cb0e51c1f6fe

  • 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
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops autorun.inf file 1 TTPs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ee0385983682322efe022225fb874aca.exe
    "C:\Users\Admin\AppData\Local\Temp\ee0385983682322efe022225fb874aca.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3256
    • C:\ProgramData\server.exe
      "C:\ProgramData\server.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:636
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
        3⤵
          PID:1920
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /IM Exsample.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:892

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Replication Through Removable Media

    1
    T1091

    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

    Replication Through Removable Media

    1
    T1091

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\ProgramData\server.exe
      MD5

      ee0385983682322efe022225fb874aca

      SHA1

      e234165631472c98a62107356a2b55a8e9f8b5a1

      SHA256

      5fa5bb5bf065b701ecbbbd704e302ca70eff2912cee39fd86f2b732372eb44f3

      SHA512

      b72cf0802d84874b1a8101793694a25051ef8460383d73a02552fe4e945517f7c40b7654fcc7b864985bd49d3b1a5e33792625c6483e7e3be6dfe9b909a424c9

      Download Submit
    • C:\ProgramData\server.exe
      MD5

      ee0385983682322efe022225fb874aca

      SHA1

      e234165631472c98a62107356a2b55a8e9f8b5a1

      SHA256

      5fa5bb5bf065b701ecbbbd704e302ca70eff2912cee39fd86f2b732372eb44f3

      SHA512

      b72cf0802d84874b1a8101793694a25051ef8460383d73a02552fe4e945517f7c40b7654fcc7b864985bd49d3b1a5e33792625c6483e7e3be6dfe9b909a424c9

      Download Submit
    • memory/636-116-0x0000000000000000-mapping.dmp
      Download
    • memory/636-119-0x0000000002CD0000-0x0000000002CD1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/892-121-0x0000000000000000-mapping.dmp
      Download
    • memory/1920-120-0x0000000000000000-mapping.dmp
      Download
    • memory/3256-115-0x00000000024F0000-0x00000000024F1000-memory.dmp
      Filesize

      4KB

      Download