Overview

overview

10

Static

static

3

8e2a38c6cc...78.exe

windows7-x64

10

8e2a38c6cc...78.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    04-02-2024 04:00

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General

  • Target

    8e2a38c6cccf6fbb76bdb2a1726ed878.exe

  • Size

    110KB

  • MD5

    8e2a38c6cccf6fbb76bdb2a1726ed878

  • SHA1

    b69e5d43aa0502c27ff7c6e860c31515af52ff7b

  • SHA256

    5e8ce92857793e8893c63bc4d032dabf6b1ab7458b0e4485e0feefed397cf205

  • SHA512

    cf6d69cf1795e1e1b096683a5acd4f3c7053dd9fe77f35c5f5dea16e5948e36680275616ebb3d327e2360e848b6c9548e1b04070a0b4dab51b0261f63b5f4377

  • SSDEEP

    3072:skjgSGGOZ1NDkBLru6HqdAGc/dw/J+jm:LgSyktrV/dQ

Score
10/10
njrat4evasionpersistencetrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

4

C2

rlawlsl154.codns.com:443

Mutex

a695e871b7f2f081334e678e67df6a28

Attributes
  • reg_key

    a695e871b7f2f081334e678e67df6a28

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Drops startup file 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops autorun.inf file 1 TTPs 5 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8e2a38c6cccf6fbb76bdb2a1726ed878.exe
    "C:\Users\Admin\AppData\Local\Temp\8e2a38c6cccf6fbb76bdb2a1726ed878.exe"
    1⤵
    • 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:2872
    • C:\Windows\SysWOW64\netsh.exe
      netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\8e2a38c6cccf6fbb76bdb2a1726ed878.exe" "8e2a38c6cccf6fbb76bdb2a1726ed878.exe" ENABLE
      2⤵
      • Modifies Windows Firewall
      PID:3040

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Discovery

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • F:\svchost.exe
    Filesize

    110KB

    MD5

    8e2a38c6cccf6fbb76bdb2a1726ed878

    SHA1

    b69e5d43aa0502c27ff7c6e860c31515af52ff7b

    SHA256

    5e8ce92857793e8893c63bc4d032dabf6b1ab7458b0e4485e0feefed397cf205

    SHA512

    cf6d69cf1795e1e1b096683a5acd4f3c7053dd9fe77f35c5f5dea16e5948e36680275616ebb3d327e2360e848b6c9548e1b04070a0b4dab51b0261f63b5f4377

    Download Submit
  • memory/2872-0-0x0000000000070000-0x0000000000092000-memory.dmp
    Filesize

    136KB

    Download
  • memory/2872-1-0x0000000000390000-0x00000000003A0000-memory.dmp
    Filesize

    64KB

    Download
  • memory/2872-2-0x0000000074EA0000-0x000000007558E000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/2872-12-0x0000000004C20000-0x0000000004C60000-memory.dmp
    Filesize

    256KB

    Download
  • memory/2872-13-0x0000000074EA0000-0x000000007558E000-memory.dmp
    Filesize

    6.9MB

    Download
  • memory/2872-14-0x0000000004C20000-0x0000000004C60000-memory.dmp
    Filesize

    256KB

    Download