Overview

overview

10

Static

static

10

3e7f474b7b...e1.exe

windows7_x64

10

3e7f474b7b...e1.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    186s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    01-07-2022 07:11

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    3e7f474b7b857a6365e0287b07a0b1d42562d00c719b8413bd89d902be36c2e1.exe

  • Size

    23KB

  • MD5

    6da1b9e34be8401e656dd8a263d1857a

  • SHA1

    c252431527c0aebb9edca387ce9ddb71d2baa311

  • SHA256

    3e7f474b7b857a6365e0287b07a0b1d42562d00c719b8413bd89d902be36c2e1

  • SHA512

    48b3dfbd194b4f9cd74236cbe4f67d40b844590d3a355a491a4b1e2220a5e1d86f856569a2ca87219fb5a76233a28d66d8bf889e90b70c6c058908630d786e79

Score
10/10
njrathackedevasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:2222

Mutex

a2e45a7dbc044c98d46693fd415d81b0

Attributes
  • reg_key

    a2e45a7dbc044c98d46693fd415d81b0

  • 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 31 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3e7f474b7b857a6365e0287b07a0b1d42562d00c719b8413bd89d902be36c2e1.exe
    "C:\Users\Admin\AppData\Local\Temp\3e7f474b7b857a6365e0287b07a0b1d42562d00c719b8413bd89d902be36c2e1.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3764
    • C:\Users\Admin\AppData\Local\Temp\revenge.exe
      "C:\Users\Admin\AppData\Local\Temp\revenge.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1928
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\revenge.exe" "revenge.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        PID:2328

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

Loading Replay Monitor...

Downloads

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

    23KB

    MD5

    6da1b9e34be8401e656dd8a263d1857a

    SHA1

    c252431527c0aebb9edca387ce9ddb71d2baa311

    SHA256

    3e7f474b7b857a6365e0287b07a0b1d42562d00c719b8413bd89d902be36c2e1

    SHA512

    48b3dfbd194b4f9cd74236cbe4f67d40b844590d3a355a491a4b1e2220a5e1d86f856569a2ca87219fb5a76233a28d66d8bf889e90b70c6c058908630d786e79

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

    23KB

    MD5

    6da1b9e34be8401e656dd8a263d1857a

    SHA1

    c252431527c0aebb9edca387ce9ddb71d2baa311

    SHA256

    3e7f474b7b857a6365e0287b07a0b1d42562d00c719b8413bd89d902be36c2e1

    SHA512

    48b3dfbd194b4f9cd74236cbe4f67d40b844590d3a355a491a4b1e2220a5e1d86f856569a2ca87219fb5a76233a28d66d8bf889e90b70c6c058908630d786e79

    Download Submit
  • memory/1928-131-0x0000000000000000-mapping.dmp
    Download
  • memory/1928-135-0x0000000074DD0000-0x0000000075381000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/1928-136-0x0000000074DD0000-0x0000000075381000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/2328-137-0x0000000000000000-mapping.dmp
    Download
  • memory/3764-130-0x0000000074DD0000-0x0000000075381000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/3764-134-0x0000000074DD0000-0x0000000075381000-memory.dmp
    Filesize

    5.7MB

    Download