Overview

overview

10

Static

static

10

0x00080000...64.exe

windows7_x64

10

0x00080000...64.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    06-07-2022 22:35

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General

  • Target

    0x0008000000012699-64.exe

  • Size

    37KB

  • MD5

    333baef68bf06e2bff8c785f9120559d

  • SHA1

    b605cc35ec178240b1150a81d73e58d1d9417bac

  • SHA256

    4d62a9ab6abeeafd08fc299581c0910c36ccf64178c16fc06b4a57a48858e1d4

  • SHA512

    0ba29d931b3166c4d334cd45f02cc053efbe2f1db3dc844a43e8f9b12a6efea3d73d45d49ab048fdd7b21495b8bbe1929b560ead99890d88f02b99fda186c1cc

Score
10/10
njrathackedevasionpersistencesuricatatrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

51.89.91.139:5050

Mutex

5db0afc818875fbd9be3e842f2d3f24b

Attributes
  • reg_key

    5db0afc818875fbd9be3e842f2d3f24b

  • splitter

    |'|'|

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
  • Modifies Windows Firewall 1 TTPs 1 IoCs
    evasion
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops autorun.inf file 1 TTPs 3 IoCs

    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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0x0008000000012699-64.exe
    "C:\Users\Admin\AppData\Local\Temp\0x0008000000012699-64.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:656
    • C:\Users\Admin\AppData\Roaming\GoogleChromer.exe
      "C:\Users\Admin\AppData\Roaming\GoogleChromer.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2004
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\GoogleChromer.exe" "GoogleChromer.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:1128

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

System Information Discovery

1
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\Roaming\GoogleChromer.exe
    Filesize

    37KB

    MD5

    333baef68bf06e2bff8c785f9120559d

    SHA1

    b605cc35ec178240b1150a81d73e58d1d9417bac

    SHA256

    4d62a9ab6abeeafd08fc299581c0910c36ccf64178c16fc06b4a57a48858e1d4

    SHA512

    0ba29d931b3166c4d334cd45f02cc053efbe2f1db3dc844a43e8f9b12a6efea3d73d45d49ab048fdd7b21495b8bbe1929b560ead99890d88f02b99fda186c1cc

    Download Submit
  • C:\Users\Admin\AppData\Roaming\GoogleChromer.exe
    Filesize

    37KB

    MD5

    333baef68bf06e2bff8c785f9120559d

    SHA1

    b605cc35ec178240b1150a81d73e58d1d9417bac

    SHA256

    4d62a9ab6abeeafd08fc299581c0910c36ccf64178c16fc06b4a57a48858e1d4

    SHA512

    0ba29d931b3166c4d334cd45f02cc053efbe2f1db3dc844a43e8f9b12a6efea3d73d45d49ab048fdd7b21495b8bbe1929b560ead99890d88f02b99fda186c1cc

    Download Submit
  • \Users\Admin\AppData\Roaming\GoogleChromer.exe
    Filesize

    37KB

    MD5

    333baef68bf06e2bff8c785f9120559d

    SHA1

    b605cc35ec178240b1150a81d73e58d1d9417bac

    SHA256

    4d62a9ab6abeeafd08fc299581c0910c36ccf64178c16fc06b4a57a48858e1d4

    SHA512

    0ba29d931b3166c4d334cd45f02cc053efbe2f1db3dc844a43e8f9b12a6efea3d73d45d49ab048fdd7b21495b8bbe1929b560ead99890d88f02b99fda186c1cc

    Download Submit
  • memory/656-54-0x00000000755A1000-0x00000000755A3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/656-55-0x0000000074230000-0x00000000747DB000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/656-61-0x0000000074230000-0x00000000747DB000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1128-63-0x0000000000000000-mapping.dmp
    Download
  • memory/2004-57-0x0000000000000000-mapping.dmp
    Download
  • memory/2004-62-0x0000000074230000-0x00000000747DB000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2004-65-0x0000000074230000-0x00000000747DB000-memory.dmp
    Filesize

    5.7MB

    Download