Overview

overview

10

Static

static

10

e4cbce3085...02.exe

windows7_x64

10

e4cbce3085...02.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    172s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 14:24

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General

  • Target

    e4cbce3085ca964b83c2b2b69a787264fefc77435095e847332354ebf8a3db02.exe

  • Size

    37KB

  • MD5

    93629cc82528b6dc58a8db94912ca786

  • SHA1

    c73a94cf2014605c317b433eb38d4a8f39d70aaf

  • SHA256

    e4cbce3085ca964b83c2b2b69a787264fefc77435095e847332354ebf8a3db02

  • SHA512

    00d0b728e31a0030f9d983f2fe36e46514f449ba96a3c034ff860f4be96e9a8e67bc4bdbff086b79474962509088032509a3e7f3cad06e32dcaaa0d3e19c7650

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

95.138.242.118:6463

Mutex

a719548a4e0a4b21166fca31fea3933b

Attributes
  • reg_key

    a719548a4e0a4b21166fca31fea3933b

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 34 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e4cbce3085ca964b83c2b2b69a787264fefc77435095e847332354ebf8a3db02.exe
    "C:\Users\Admin\AppData\Local\Temp\e4cbce3085ca964b83c2b2b69a787264fefc77435095e847332354ebf8a3db02.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3204
    • C:\Users\Admin\AppData\Local\Temp\obama.exe
      "C:\Users\Admin\AppData\Local\Temp\obama.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:1844
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\obama.exe" "obama.exe" ENABLE
        3⤵
          PID:4260
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /F /IM Exsample.exe
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4480

    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

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Replication Through Removable Media

    1
    T1091

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\obama.exe
      Filesize

      37KB

      MD5

      93629cc82528b6dc58a8db94912ca786

      SHA1

      c73a94cf2014605c317b433eb38d4a8f39d70aaf

      SHA256

      e4cbce3085ca964b83c2b2b69a787264fefc77435095e847332354ebf8a3db02

      SHA512

      00d0b728e31a0030f9d983f2fe36e46514f449ba96a3c034ff860f4be96e9a8e67bc4bdbff086b79474962509088032509a3e7f3cad06e32dcaaa0d3e19c7650

      Download Submit
    • C:\Users\Admin\AppData\Local\Temp\obama.exe
      Filesize

      37KB

      MD5

      93629cc82528b6dc58a8db94912ca786

      SHA1

      c73a94cf2014605c317b433eb38d4a8f39d70aaf

      SHA256

      e4cbce3085ca964b83c2b2b69a787264fefc77435095e847332354ebf8a3db02

      SHA512

      00d0b728e31a0030f9d983f2fe36e46514f449ba96a3c034ff860f4be96e9a8e67bc4bdbff086b79474962509088032509a3e7f3cad06e32dcaaa0d3e19c7650

      Download Submit
    • memory/1844-131-0x0000000000000000-mapping.dmp
      Download
    • memory/1844-134-0x0000000074BC0000-0x0000000075171000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/3204-130-0x0000000074BC0000-0x0000000075171000-memory.dmp
      Filesize

      5.7MB

      Download
    • memory/4260-135-0x0000000000000000-mapping.dmp
      Download
    • memory/4480-136-0x0000000000000000-mapping.dmp
      Download