Overview

overview

10

Static

static

10

a99fb7b3c1...ee.exe

windows7-x64

10

a99fb7b3c1...ee.exe

windows10-2004-x64

3

Analysis

  • max time kernel
    150s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18-09-2024 00:20

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General

  • Target

    a99fb7b3c1ac48a0501f1c91c578bb6306f69fbfd7afc09dfbcb6a6acb8157ee.exe

  • Size

    37KB

  • MD5

    3d24325e0de8ce6ac6e58c6d7b562fb5

  • SHA1

    b47f28320e9bf413506abe27f214f9e8065b5adf

  • SHA256

    a99fb7b3c1ac48a0501f1c91c578bb6306f69fbfd7afc09dfbcb6a6acb8157ee

  • SHA512

    85524a3a525ebc9e8af24a65d1c8aebddc59a373ce47123fc26fc7513bf01bf7c51ee5b67b3681569d217b32754a90b204b132ea41a5db7fbb9fbd00ade7c85a

  • SSDEEP

    384:UkujKicgkjn5xL5oyUi8mfF2jfP3lYiEASrAF+rMRTyN/0L+EcoinblneHQM3ep5:ruOf5DUi8o2jfdVEDrM+rMRa8NuBvt

Score
10/10
njratsas595959595959discoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

Sas595959595959

C2

ru.tuna.am:25052

Mutex

4ff16c8fdeb8e3ee81ab4855ac4d97c2

Attributes
  • reg_key

    4ff16c8fdeb8e3ee81ab4855ac4d97c2

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a99fb7b3c1ac48a0501f1c91c578bb6306f69fbfd7afc09dfbcb6a6acb8157ee.exe
    "C:\Users\Admin\AppData\Local\Temp\a99fb7b3c1ac48a0501f1c91c578bb6306f69fbfd7afc09dfbcb6a6acb8157ee.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1748
    • C:\Users\Admin\TiWorker.exe
      "C:\Users\Admin\TiWorker.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops autorun.inf file
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2504
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\TiWorker.exe" "TiWorker.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

1
T1546

Netsh Helper DLL

1
T1546.007

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • \Users\Admin\TiWorker.exe
    Filesize

    37KB

    MD5

    3d24325e0de8ce6ac6e58c6d7b562fb5

    SHA1

    b47f28320e9bf413506abe27f214f9e8065b5adf

    SHA256

    a99fb7b3c1ac48a0501f1c91c578bb6306f69fbfd7afc09dfbcb6a6acb8157ee

    SHA512

    85524a3a525ebc9e8af24a65d1c8aebddc59a373ce47123fc26fc7513bf01bf7c51ee5b67b3681569d217b32754a90b204b132ea41a5db7fbb9fbd00ade7c85a

    Download Submit

  • memory/1748-0-0x0000000074D81000-0x0000000074D82000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1748-1-0x0000000074D80000-0x000000007532B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1748-2-0x0000000074D80000-0x000000007532B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/1748-10-0x0000000074D80000-0x000000007532B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2504-11-0x0000000074D80000-0x000000007532B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2504-12-0x0000000074D80000-0x000000007532B000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2504-22-0x0000000074D80000-0x000000007532B000-memory.dmp

    Filesize

    5.7MB

    Download