Overview

overview

10

Static

static

10

rZY9dYcU.exe

windows7-x64

10

rZY9dYcU.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    06-08-2024 22:51

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General

  • Target

    rZY9dYcU.exe

  • Size

    29KB

  • MD5

    1a9dc60f41c7e64a75e10619e4d97408

  • SHA1

    9e1d67b7b22e99fafff0648dee50c9c0c852cb07

  • SHA256

    0dda88d7337e3546f70f942ec28860567277cb64e230e2fa281df7f589bce8b4

  • SHA512

    1038a5f76da1043df3493a516fd48caf792e342f091635c3af6d7dbd95cdc7d417248f4545c151642fbdabd381ca5b0b7d066e9b5a739c02ac544bebb7302104

  • SSDEEP

    384:7hkrLGN8fNl7L5H4yAyr9N95jv8CumqDM1TeHdGBsbh0w4wlAokw9OhgOL1vYRGd:67R4yAyrR8MqYTeEBKh0p29SgRlK

Score
10/10
njrathackeddiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

HacKed

C2

amma.myftp.biz:1177

Mutex

93f19dda2412c86ad7520ba4198f39a0

Attributes
  • reg_key

    93f19dda2412c86ad7520ba4198f39a0

  • 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
  • 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 42 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rZY9dYcU.exe
    "C:\Users\Admin\AppData\Local\Temp\rZY9dYcU.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2556
    • C:\Users\Admin\AppData\Roaming\explorer.exe
      "C:\Users\Admin\AppData\Roaming\explorer.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2472
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\explorer.exe" "explorer.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:2860

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

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

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Roaming\explorer.exe
    Filesize

    29KB

    MD5

    1a9dc60f41c7e64a75e10619e4d97408

    SHA1

    9e1d67b7b22e99fafff0648dee50c9c0c852cb07

    SHA256

    0dda88d7337e3546f70f942ec28860567277cb64e230e2fa281df7f589bce8b4

    SHA512

    1038a5f76da1043df3493a516fd48caf792e342f091635c3af6d7dbd95cdc7d417248f4545c151642fbdabd381ca5b0b7d066e9b5a739c02ac544bebb7302104

    Download Submit

  • memory/2472-11-0x0000000074650000-0x0000000074BFB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2472-12-0x0000000074650000-0x0000000074BFB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2472-14-0x0000000074650000-0x0000000074BFB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2556-0-0x0000000074651000-0x0000000074652000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2556-1-0x0000000074650000-0x0000000074BFB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2556-2-0x0000000074650000-0x0000000074BFB000-memory.dmp

    Filesize

    5.7MB

    Download

  • memory/2556-10-0x0000000074650000-0x0000000074BFB000-memory.dmp

    Filesize

    5.7MB

    Download