njrat | 35822e68e8334cb47ca9cf01a80ec85047fbf6218298a4c4ee08b41b02bb9658

General

Target

131cc4da76d323e1792e458585a9161f.exe
Size

70KB
MD5

131cc4da76d323e1792e458585a9161f
SHA1

2391bf26f9f880672a3469d8137fdd9c0daacd30
SHA256

35822e68e8334cb47ca9cf01a80ec85047fbf6218298a4c4ee08b41b02bb9658
SHA512

5c5b62217c04770f18e108b5623e0302329dceb28a695fe8bad316b9d8787aaa0dcf5f056bcc223d600aa45348c8e857e4bc48b56b878d3117e30afc64d0f1a4
SSDEEP

768:zdlo/TaYmBcU7BKvk7m+8RoqdTQ+UzpvCHtnDvk7m+8RoqdTQ+UzpvCHtn2:zdoTsBrd7mvR7dTupvcS7mvR7dTupvcg

Score

10^/10

njrat hacked persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

tyfdfdfs.ddns.net:5552

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\Control Panel\International\Geo\Nation	131cc4da76d323e1792e458585a9161f.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Server.exe

Executes dropped EXE 2 IoCs

pid	Process
2708	Server.exe
4324	Server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Server.exe\" .."	Server.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4324	Server.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe
Token: 33	4324	Server.exe
Token: SeIncBasePriorityPrivilege	4324	Server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3272 wrote to memory of 2708	3272	131cc4da76d323e1792e458585a9161f.exe	85
PID 3272 wrote to memory of 2708	3272	131cc4da76d323e1792e458585a9161f.exe	85
PID 3272 wrote to memory of 4324	3272	131cc4da76d323e1792e458585a9161f.exe	86
PID 3272 wrote to memory of 4324	3272	131cc4da76d323e1792e458585a9161f.exe	86

C:\Users\Admin\AppData\Local\Temp\131cc4da76d323e1792e458585a9161f.exe
"C:\Users\Admin\AppData\Local\Temp\131cc4da76d323e1792e458585a9161f.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3272
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  "C:\Users\Admin\AppData\Local\Temp\Server.exe"
  2⤵
  - Executes dropped EXE
  PID:2708
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  "C:\Users\Admin\AppData\Local\Temp\Server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:4324

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Server.exe

Filesize
25KB

MD5
4fa8add6fc5821676245de5c3a3ff2b5

SHA1
d676e4d65f74724d2f7a6c6385ed36a2d0efac77

SHA256
40951afa1869484ca354dba200154bcf0719113c29a90662ff1867392480b3de

SHA512
e22efd4d9f8b04490e582dcb057cec4cc032da30c7c2d272094735cbcda4d236f548606a9fa95c7f9a5caa0b4ff08c80a40caec5d59f3da3ab4076708e0e2adf

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe

Filesize
25KB

MD5
4fa8add6fc5821676245de5c3a3ff2b5

SHA1
d676e4d65f74724d2f7a6c6385ed36a2d0efac77

SHA256
40951afa1869484ca354dba200154bcf0719113c29a90662ff1867392480b3de

SHA512
e22efd4d9f8b04490e582dcb057cec4cc032da30c7c2d272094735cbcda4d236f548606a9fa95c7f9a5caa0b4ff08c80a40caec5d59f3da3ab4076708e0e2adf

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe

Filesize
25KB

MD5
4fa8add6fc5821676245de5c3a3ff2b5

SHA1
d676e4d65f74724d2f7a6c6385ed36a2d0efac77

SHA256
40951afa1869484ca354dba200154bcf0719113c29a90662ff1867392480b3de

SHA512
e22efd4d9f8b04490e582dcb057cec4cc032da30c7c2d272094735cbcda4d236f548606a9fa95c7f9a5caa0b4ff08c80a40caec5d59f3da3ab4076708e0e2adf

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe

Filesize
25KB

MD5
4fa8add6fc5821676245de5c3a3ff2b5

SHA1
d676e4d65f74724d2f7a6c6385ed36a2d0efac77

SHA256
40951afa1869484ca354dba200154bcf0719113c29a90662ff1867392480b3de

SHA512
e22efd4d9f8b04490e582dcb057cec4cc032da30c7c2d272094735cbcda4d236f548606a9fa95c7f9a5caa0b4ff08c80a40caec5d59f3da3ab4076708e0e2adf

Download Submit
memory/2708-164-0x00007FFAE4E20000-0x00007FFAE57C1000-memory.dmp

Filesize
9.6MB

Download
memory/2708-159-0x00007FFAE4E20000-0x00007FFAE57C1000-memory.dmp

Filesize
9.6MB

Download
memory/2708-157-0x0000000001520000-0x0000000001532000-memory.dmp

Filesize
72KB

Download
memory/2708-154-0x00007FFAE4E20000-0x00007FFAE57C1000-memory.dmp

Filesize
9.6MB

Download
memory/2708-155-0x00000000015E0000-0x00000000015F0000-memory.dmp

Filesize
64KB

Download
memory/2708-152-0x0000000000D10000-0x0000000000D18000-memory.dmp

Filesize
32KB

Download
memory/3272-140-0x0000000000BD0000-0x0000000000BD8000-memory.dmp

Filesize
32KB

Download
memory/3272-134-0x000000001B0C0000-0x000000001B166000-memory.dmp

Filesize
664KB

Download
memory/3272-133-0x00000000001E0000-0x00000000001EC000-memory.dmp

Filesize
48KB

Download
memory/3272-139-0x000000001BC60000-0x000000001BCFC000-memory.dmp

Filesize
624KB

Download
memory/3272-138-0x0000000000BF0000-0x0000000000C00000-memory.dmp

Filesize
64KB

Download
memory/3272-137-0x00007FFAE4E20000-0x00007FFAE57C1000-memory.dmp

Filesize
9.6MB

Download
memory/3272-156-0x00007FFAE4E20000-0x00007FFAE57C1000-memory.dmp

Filesize
9.6MB

Download
memory/3272-136-0x000000001B6F0000-0x000000001BBBE000-memory.dmp

Filesize
4.8MB

Download
memory/3272-135-0x00007FFAE4E20000-0x00007FFAE57C1000-memory.dmp

Filesize
9.6MB

Download
memory/3272-141-0x000000001BDC0000-0x000000001BE0C000-memory.dmp

Filesize
304KB

Download
memory/4324-158-0x0000000000D40000-0x0000000000D52000-memory.dmp

Filesize
72KB

Download
memory/4324-161-0x00007FFAE4E20000-0x00007FFAE57C1000-memory.dmp

Filesize
9.6MB

Download
memory/4324-162-0x00007FFAE4E20000-0x00007FFAE57C1000-memory.dmp

Filesize
9.6MB

Download
memory/4324-160-0x0000000000F80000-0x0000000000F90000-memory.dmp

Filesize
64KB

Download
memory/4324-166-0x000000001C6A0000-0x000000001C702000-memory.dmp

Filesize
392KB

Download
memory/4324-167-0x000000001D110000-0x000000001D129000-memory.dmp

Filesize
100KB

Download
memory/4324-168-0x0000000000F80000-0x0000000000F90000-memory.dmp

Filesize
64KB

Download
memory/4324-169-0x00007FFAE4E20000-0x00007FFAE57C1000-memory.dmp

Filesize
9.6MB

Download
memory/4324-170-0x00007FFAE4E20000-0x00007FFAE57C1000-memory.dmp

Filesize
9.6MB

Download

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