njrat | 041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3

General

Target

041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3.exe
Size

43KB
MD5

105ab4478b568f39f8e6330f54084571
SHA1

5637dcae84aa5797da5490482556c61378c9f1fe
SHA256

041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3
SHA512

7cac14e0709c9c749946227778e131f3e6149124803bf84d592b8c5100809b97e11140cb0410bb541a48b62b332c39df9620e7bf8224da95666d16dc266b3c24
SSDEEP

384:bqZyaKVarEvEyeD0brquFENf9QFkznIij+ZsNO3PlpJKkkjh/TzF7pWnamgreT0w:ERKMYvReDwrpWfqNuXQ/ofC+Lg

Score

10^/10

njrat hacked discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

192.168.0.11:5552

Mutex

yandex

Attributes

reg_key
yandex
splitter
|Hassan|

Signatures

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

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
2540	Dllhost.exe
2104	Server.exe
2516	Server.exe

Loads dropped DLL 1 IoCs

pid	Process
2736	041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\yandex = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\yandex = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dllhost.exe\" .."	Dllhost.exe

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 5 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	041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dllhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2532	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2736	041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3.exe
2540	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe
Token: 33	2540	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2540	Dllhost.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2540	2736	041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3.exe	31
PID 2736 wrote to memory of 2540	2736	041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3.exe	31
PID 2736 wrote to memory of 2540	2736	041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3.exe	31
PID 2736 wrote to memory of 2540	2736	041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3.exe	31
PID 2540 wrote to memory of 2532	2540	Dllhost.exe	32
PID 2540 wrote to memory of 2532	2540	Dllhost.exe	32
PID 2540 wrote to memory of 2532	2540	Dllhost.exe	32
PID 2540 wrote to memory of 2532	2540	Dllhost.exe	32
PID 2976 wrote to memory of 2104	2976	taskeng.exe	35
PID 2976 wrote to memory of 2104	2976	taskeng.exe	35
PID 2976 wrote to memory of 2104	2976	taskeng.exe	35
PID 2976 wrote to memory of 2104	2976	taskeng.exe	35
PID 2976 wrote to memory of 2516	2976	taskeng.exe	37
PID 2976 wrote to memory of 2516	2976	taskeng.exe	37
PID 2976 wrote to memory of 2516	2976	taskeng.exe	37
PID 2976 wrote to memory of 2516	2976	taskeng.exe	37

C:\Users\Admin\AppData\Local\Temp\041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3.exe
"C:\Users\Admin\AppData\Local\Temp\041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Users\Admin\AppData\Local\Temp\Dllhost.exe
  "C:\Users\Admin\AppData\Local\Temp\Dllhost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2532

C:\Windows\system32\taskeng.exe
taskeng.exe {189D5B59-E55A-4E31-9EFD-FA349D725C75} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2976
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2104
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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

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Downloads

\Users\Admin\AppData\Local\Temp\Dllhost.exe

Filesize
43KB

MD5
105ab4478b568f39f8e6330f54084571

SHA1
5637dcae84aa5797da5490482556c61378c9f1fe

SHA256
041df349dc08784b924cf4c52af27a3fadf1e751f2a8f30ed9bf2ad13c7748f3

SHA512
7cac14e0709c9c749946227778e131f3e6149124803bf84d592b8c5100809b97e11140cb0410bb541a48b62b332c39df9620e7bf8224da95666d16dc266b3c24

Download Submit
memory/2104-20-0x0000000000940000-0x0000000000952000-memory.dmp

Filesize
72KB

Download
memory/2516-22-0x00000000013B0000-0x00000000013C2000-memory.dmp

Filesize
72KB

Download
memory/2540-10-0x00000000003C0000-0x00000000003D2000-memory.dmp

Filesize
72KB

Download
memory/2540-11-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2540-13-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2540-16-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2540-17-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-0-0x0000000074D3E000-0x0000000074D3F000-memory.dmp

Filesize
4KB

Download
memory/2736-1-0x0000000000360000-0x0000000000372000-memory.dmp

Filesize
72KB

Download
memory/2736-2-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-12-0x0000000074D30000-0x000000007541E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads