njrat | 4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814

Resubmissions

04-11-2024 23:08

241104-242eea1rfn 10

04-11-2024 05:23

241104-f27yhstpbs 10

28-09-2024 10:19

240928-mcp5qssgma 10

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-11-2024 05:23

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General

Target

4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe
Size

22KB
MD5

ee653dcd9ed87ec3319c0f443c8a54df
SHA1

63a45f8da331e303a8ae7e93df190a4443a13b57
SHA256

4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814
SHA512

e9cd28d1f6d4d9ddff7943021e3795489941f419aabd649b378d5d0992316751c5418068983b5d26feb6178c2ace2c12dded94839d1f70c6e59682c26562f5e2
SSDEEP

384:IsqS+ER6vRKXGYKRWVSujUtX9w6Dglo61Z5DVmRvR6JZlbw8hqIusZzZSZQ:/f65K2Yf1jKRpcnupQ

Score

10^/10

njrat client discovery trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

client

akamaru.ddns.net:1605

Mutex

aa15bd929c7132fe8f63fd4d0ae48d6c

Attributes

reg_key
aa15bd929c7132fe8f63fd4d0ae48d6c
splitter
|'|'|

Signatures

Njrat family
njrat
njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

System Language Discovery

T1614.001

Processes:

rundll32.exeAcroRd32.exe4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe

Modifies registry class 7 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000_CLASSES\_auto_file\shell	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

AcroRd32.exe

pid process

2400 AcroRd32.exe
2400 AcroRd32.exe

pid	process
2400	AcroRd32.exe
2400	AcroRd32.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exerundll32.exe

description	pid	process	target process
PID 1484 wrote to memory of 2312	1484	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	rundll32.exe
PID 1484 wrote to memory of 2312	1484	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	rundll32.exe
PID 1484 wrote to memory of 2312	1484	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	rundll32.exe
PID 1484 wrote to memory of 2312	1484	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	rundll32.exe
PID 1484 wrote to memory of 2312	1484	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	rundll32.exe
PID 1484 wrote to memory of 2312	1484	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	rundll32.exe
PID 1484 wrote to memory of 2312	1484	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	rundll32.exe
PID 2312 wrote to memory of 2400	2312	rundll32.exe	AcroRd32.exe
PID 2312 wrote to memory of 2400	2312	rundll32.exe	AcroRd32.exe
PID 2312 wrote to memory of 2400	2312	rundll32.exe	AcroRd32.exe
PID 2312 wrote to memory of 2400	2312	rundll32.exe	AcroRd32.exe

C:\Users\Admin\AppData\Local\Temp\4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe
"C:\Users\Admin\AppData\Local\Temp\4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1484
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Minecraft
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2312
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Minecraft"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:2400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Minecraft

Filesize
22KB

MD5
ee653dcd9ed87ec3319c0f443c8a54df

SHA1
63a45f8da331e303a8ae7e93df190a4443a13b57

SHA256
4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814

SHA512
e9cd28d1f6d4d9ddff7943021e3795489941f419aabd649b378d5d0992316751c5418068983b5d26feb6178c2ace2c12dded94839d1f70c6e59682c26562f5e2

Download Submit
memory/1484-0-0x0000000074A51000-0x0000000074A52000-memory.dmp

Filesize
4KB

Download
memory/1484-1-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/1484-2-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download
memory/1484-5-0x0000000074A50000-0x0000000074FFB000-memory.dmp

Filesize
5.7MB

Download