Overview

overview

10

Static

static

10

4fe14f7fed...c1.exe

windows7-x64

10

4fe14f7fed...c1.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    152s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2022 13:33

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General

  • Target

    4fe14f7fed41f8e1fb8a871ac7dd25d2fa3b656b1a93ef4049227c82fc3ac2c1.exe

  • Size

    79KB

  • MD5

    6d72d1863acdb764df854fb0abd38860

  • SHA1

    def38fdd1249b8077d6a7e1ec13f0297f7e87b8b

  • SHA256

    4fe14f7fed41f8e1fb8a871ac7dd25d2fa3b656b1a93ef4049227c82fc3ac2c1

  • SHA512

    d8bb01462303a4be3b484eacd82ce63710e0a1733c90e0becc14c3647950c1271bbb43ff859efb2bef9d83478b4458567af27829ad20d228230efe831fa7c7b8

  • SSDEEP

    1536:hm7N1XfdFKhG29jbdF6NCOXTvJOpH8TBg5UjlfUsNJiRb6N5p:hc1X1MA29zgTB4W/dERu

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

wallalhazen.no-ip.org:1177

Mutex

5cd8f17f4086744065eb0992a09e05a2

Attributes
  • reg_key

    5cd8f17f4086744065eb0992a09e05a2

  • 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 42 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4fe14f7fed41f8e1fb8a871ac7dd25d2fa3b656b1a93ef4049227c82fc3ac2c1.exe
    "C:\Users\Admin\AppData\Local\Temp\4fe14f7fed41f8e1fb8a871ac7dd25d2fa3b656b1a93ef4049227c82fc3ac2c1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4924
    • C:\Users\Admin\AppData\Local\Temp\Trojan.exe
      "C:\Users\Admin\AppData\Local\Temp\Trojan.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4736
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Trojan.exe" "Trojan.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2456

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\Trojan.exe
    Filesize

    79KB

    MD5

    6d72d1863acdb764df854fb0abd38860

    SHA1

    def38fdd1249b8077d6a7e1ec13f0297f7e87b8b

    SHA256

    4fe14f7fed41f8e1fb8a871ac7dd25d2fa3b656b1a93ef4049227c82fc3ac2c1

    SHA512

    d8bb01462303a4be3b484eacd82ce63710e0a1733c90e0becc14c3647950c1271bbb43ff859efb2bef9d83478b4458567af27829ad20d228230efe831fa7c7b8

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

    79KB

    MD5

    6d72d1863acdb764df854fb0abd38860

    SHA1

    def38fdd1249b8077d6a7e1ec13f0297f7e87b8b

    SHA256

    4fe14f7fed41f8e1fb8a871ac7dd25d2fa3b656b1a93ef4049227c82fc3ac2c1

    SHA512

    d8bb01462303a4be3b484eacd82ce63710e0a1733c90e0becc14c3647950c1271bbb43ff859efb2bef9d83478b4458567af27829ad20d228230efe831fa7c7b8

    Download Submit
  • memory/2456-136-0x0000000000000000-mapping.dmp
    Download
  • memory/4736-133-0x0000000000000000-mapping.dmp
    Download
  • memory/4736-138-0x00000000745F0000-0x0000000074BA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4736-139-0x00000000745F0000-0x0000000074BA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4924-132-0x00000000745F0000-0x0000000074BA1000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4924-137-0x00000000745F0000-0x0000000074BA1000-memory.dmp
    Filesize

    5.7MB

    Download