Overview

overview

10

Static

static

10

083efc4551...dc.exe

windows7-x64

10

083efc4551...dc.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    152s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-09-2022 19:56

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General

  • Target

    083efc45518c7f1fc2251b832a2eb9dc.exe

  • Size

    37KB

  • MD5

    083efc45518c7f1fc2251b832a2eb9dc

  • SHA1

    b62c3b893b0c8fef176f417b7ed3acdc699af263

  • SHA256

    5696e83acfa1b5ee20d0f656e8b9a9941971e7c84f376b970d0d87b98f11c0c6

  • SHA512

    90f74079073a682d4f8e74114a6a2d772e325fce88d47790e2623847d75f35331932485daa51bce8be6989a473c012a5e08d695267a8bbff5671c1afc283179e

  • SSDEEP

    384:geELEUiFsbK7FmpE8QyEfQEP/gfPMIArAF+rMRTyN/0L+EcoinblneHQM3epzXZd:9EH2n8LEfQEg3MZrM+rMRa8NuTXt

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

2.tcp.ngrok.io:16976

Mutex

ab95c48a378548825737fb3b7d22691c

Attributes
  • reg_key

    ab95c48a378548825737fb3b7d22691c

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\083efc45518c7f1fc2251b832a2eb9dc.exe
    "C:\Users\Admin\AppData\Local\Temp\083efc45518c7f1fc2251b832a2eb9dc.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4972
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\svchost.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:3424
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\svchost.exe" "svchost.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:4712

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

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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

    37KB

    MD5

    083efc45518c7f1fc2251b832a2eb9dc

    SHA1

    b62c3b893b0c8fef176f417b7ed3acdc699af263

    SHA256

    5696e83acfa1b5ee20d0f656e8b9a9941971e7c84f376b970d0d87b98f11c0c6

    SHA512

    90f74079073a682d4f8e74114a6a2d772e325fce88d47790e2623847d75f35331932485daa51bce8be6989a473c012a5e08d695267a8bbff5671c1afc283179e

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

    37KB

    MD5

    083efc45518c7f1fc2251b832a2eb9dc

    SHA1

    b62c3b893b0c8fef176f417b7ed3acdc699af263

    SHA256

    5696e83acfa1b5ee20d0f656e8b9a9941971e7c84f376b970d0d87b98f11c0c6

    SHA512

    90f74079073a682d4f8e74114a6a2d772e325fce88d47790e2623847d75f35331932485daa51bce8be6989a473c012a5e08d695267a8bbff5671c1afc283179e

    Download Submit
  • memory/3424-134-0x0000000000000000-mapping.dmp
    Download
  • memory/3424-138-0x00000000745F0000-0x0000000074BA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3424-140-0x00000000745F0000-0x0000000074BA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4712-139-0x0000000000000000-mapping.dmp
    Download
  • memory/4972-132-0x00000000745F0000-0x0000000074BA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4972-133-0x00000000745F0000-0x0000000074BA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4972-137-0x00000000745F0000-0x0000000074BA1000-memory.dmp
    Filesize

    5.7MB

    Download