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
112s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
04-11-2024 23:08

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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

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

Modifies registry class 7 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000_CLASSES\_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2784	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2784	AcroRd32.exe
2784	AcroRd32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 2920	2600	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	30
PID 2600 wrote to memory of 2920	2600	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	30
PID 2600 wrote to memory of 2920	2600	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	30
PID 2600 wrote to memory of 2920	2600	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	30
PID 2600 wrote to memory of 2920	2600	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	30
PID 2600 wrote to memory of 2920	2600	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	30
PID 2600 wrote to memory of 2920	2600	4a3f69c2613f4a514b1c904f7e019990d68718fbfdbb6ffe2896c50489ea5814.exe	30
PID 2920 wrote to memory of 2784	2920	rundll32.exe	31
PID 2920 wrote to memory of 2784	2920	rundll32.exe	31
PID 2920 wrote to memory of 2784	2920	rundll32.exe	31
PID 2920 wrote to memory of 2784	2920	rundll32.exe	31

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:2600
- 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:2920
- - 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 behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2784

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
C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
657a6e3102813bedc55728c92785d0ef

SHA1
c01c6ef98b1b7b3ede31ebfcdb048960505796d6

SHA256
dc5608f256cb4822d50b02188cd67608b4ed46bcc0c20f4983f8a676f4624b8b

SHA512
52676e08d6a84d8fde13a81ab9bac94631b2a3718dfa6cb656e489748d47ed91204a44bad50caf79cbc8897630c19973017eb8bc83c88c6a71be7b6809740ec4

Download Submit
memory/2600-0-0x0000000074F61000-0x0000000074F62000-memory.dmp

Filesize
4KB

Download
memory/2600-1-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download
memory/2600-2-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download
memory/2600-5-0x0000000074F60000-0x000000007550B000-memory.dmp

Filesize
5.7MB

Download