Overview

overview

10

Static

static

10

e23d2c38f9...53.exe

windows7-x64

10

e23d2c38f9...53.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    172s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 08:43

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General

  • Target

    e23d2c38f9950e240224323130432eb402990c609078ad23820450a3eff0c553.exe

  • Size

    23KB

  • MD5

    74780f3763b7d5b363fef25920dbadb9

  • SHA1

    8c6de60d4b88c9b5157acdd94e50d9495f45ceaf

  • SHA256

    e23d2c38f9950e240224323130432eb402990c609078ad23820450a3eff0c553

  • SHA512

    132363ced9472520f7a8a6bd7a362ba310a353ea60d108e8a26e8a780e0e47f57ba3f312bf403d9e5d96eaa92170fe254b96c8f7af99f6d8aded6e69780c42e2

  • SSDEEP

    384:vcqbCK0l4h7o9SVyDGvENuh46/gJkOmMSW38mRvR6JZlbw8hqIusZzZBu:030py6vhxaRpcnuD

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

fuzzyhf.duckdns.org:83

Mutex

f5745fbc2df9d21e00fadcaa45b4b04a

Attributes
  • reg_key

    f5745fbc2df9d21e00fadcaa45b4b04a

  • 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 use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e23d2c38f9950e240224323130432eb402990c609078ad23820450a3eff0c553.exe
    "C:\Users\Admin\AppData\Local\Temp\e23d2c38f9950e240224323130432eb402990c609078ad23820450a3eff0c553.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4688
    • C:\Users\Admin\AppData\Local\Temp\msconfig.exe
      "C:\Users\Admin\AppData\Local\Temp\msconfig.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1984
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\msconfig.exe" "msconfig.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1772

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\msconfig.exe
    Filesize

    23KB

    MD5

    74780f3763b7d5b363fef25920dbadb9

    SHA1

    8c6de60d4b88c9b5157acdd94e50d9495f45ceaf

    SHA256

    e23d2c38f9950e240224323130432eb402990c609078ad23820450a3eff0c553

    SHA512

    132363ced9472520f7a8a6bd7a362ba310a353ea60d108e8a26e8a780e0e47f57ba3f312bf403d9e5d96eaa92170fe254b96c8f7af99f6d8aded6e69780c42e2

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

    23KB

    MD5

    74780f3763b7d5b363fef25920dbadb9

    SHA1

    8c6de60d4b88c9b5157acdd94e50d9495f45ceaf

    SHA256

    e23d2c38f9950e240224323130432eb402990c609078ad23820450a3eff0c553

    SHA512

    132363ced9472520f7a8a6bd7a362ba310a353ea60d108e8a26e8a780e0e47f57ba3f312bf403d9e5d96eaa92170fe254b96c8f7af99f6d8aded6e69780c42e2

    Download Submit
  • memory/1772-139-0x0000000000000000-mapping.dmp
    Download
  • memory/1984-134-0x0000000000000000-mapping.dmp
    Download
  • memory/1984-138-0x00000000752E0000-0x0000000075891000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1984-140-0x00000000752E0000-0x0000000075891000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4688-132-0x00000000752E0000-0x0000000075891000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4688-133-0x00000000752E0000-0x0000000075891000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/4688-137-0x00000000752E0000-0x0000000075891000-memory.dmp
    Filesize

    5.7MB

    Download