Overview

overview

10

Static

static

84bd6cb486...bd.exe

windows7_x64

10

84bd6cb486...bd.exe

windows10_x64

10

Analysis

  • max time kernel
    154s
  • max time network
    153s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    06-09-2021 22:12

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General

  • Target

    84bd6cb486f45bf0d92d2f259045febd.exe

  • Size

    761KB

  • MD5

    84bd6cb486f45bf0d92d2f259045febd

  • SHA1

    d6a8506acd3aa0f81555da8dab87efc70e8a20f4

  • SHA256

    2b04dc24a677c5892b077491d6e794fe8758341919d363067aaed539f3dec2db

  • SHA512

    bf072d5eff0acd67ac57bf23f4454d695c0e9e56b122f9133f50bc61daca1726d3ddf3c3648b8c0005d7a0153b23164888602b76ea0e657988c554b98ae52640

Score
10/10
njratxxxxxxxxxxpersistencesuricatatrojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

xxxxxxxxxx

C2

pubg.ddns.net:147

Mutex

Windows Update

Attributes
  • reg_key

    Windows Update

  • splitter

    |Hassan|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

    suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

    suricata
  • Executes dropped EXE 1 IoCs
  • 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: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 33 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\84bd6cb486f45bf0d92d2f259045febd.exe
    "C:\Users\Admin\AppData\Local\Temp\84bd6cb486f45bf0d92d2f259045febd.exe"
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:808
    • C:\Users\Admin\AppData\Roaming\FixWindowsUpdate.exe
      "C:\Users\Admin\AppData\Roaming\FixWindowsUpdate.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2844

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

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

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\FixWindowsUpdate.exe
    MD5

    84bd6cb486f45bf0d92d2f259045febd

    SHA1

    d6a8506acd3aa0f81555da8dab87efc70e8a20f4

    SHA256

    2b04dc24a677c5892b077491d6e794fe8758341919d363067aaed539f3dec2db

    SHA512

    bf072d5eff0acd67ac57bf23f4454d695c0e9e56b122f9133f50bc61daca1726d3ddf3c3648b8c0005d7a0153b23164888602b76ea0e657988c554b98ae52640

    Download Submit
  • C:\Users\Admin\AppData\Roaming\FixWindowsUpdate.exe
    MD5

    84bd6cb486f45bf0d92d2f259045febd

    SHA1

    d6a8506acd3aa0f81555da8dab87efc70e8a20f4

    SHA256

    2b04dc24a677c5892b077491d6e794fe8758341919d363067aaed539f3dec2db

    SHA512

    bf072d5eff0acd67ac57bf23f4454d695c0e9e56b122f9133f50bc61daca1726d3ddf3c3648b8c0005d7a0153b23164888602b76ea0e657988c554b98ae52640

    Download Submit
  • memory/808-114-0x00000000006B0000-0x00000000006B1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/808-116-0x0000000002730000-0x000000000273B000-memory.dmp
    Filesize

    44KB

    Download
  • memory/808-117-0x0000000002830000-0x0000000002832000-memory.dmp
    Filesize

    8KB

    Download
  • memory/2844-118-0x0000000000000000-mapping.dmp
    Download
  • memory/2844-124-0x000000001B7F0000-0x000000001B7F2000-memory.dmp
    Filesize

    8KB

    Download