njrat | 2de37d5ef0c4b16a733af9802c00982fddb034f719b09c90140a7d65c7c97389

General

Target

2788-29-0x00000000000F0000-0x0000000000466000-memory.exe
Size

3.5MB
MD5

f41f059f4245ebc2caaa103103a4689a
SHA1

c0b40d6520b58ce3e484d0f7c9ded7237c6fa059
SHA256

2de37d5ef0c4b16a733af9802c00982fddb034f719b09c90140a7d65c7c97389
SHA512

d0bd25c6558dec7ad6fc5ca4ed382fad82766db1551f654553c95b61fe57b228117bb818baf191256a49ed8e07b86247877ddaba86047091034e09b7c9ae0473
SSDEEP

49152:/WwUXMaVn3pT4I/5xCiZ+fdSoR9tUwjenBaB94Pw:/7UX13+I7CYCeBaB9A

Score

10^/10

njrat hacked discovery persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

6.tcp.eu.ngrok.io:12482

Mutex

Windows Update

Attributes

reg_key
Windows Update
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\Java update.exe	Dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Dllhost.exe

Executes dropped EXE 4 IoCs

pid	Process
1804	Dllhost.exe
2928	Server.exe
1392	Server.exe
2612	Server.exe

Loads dropped DLL 1 IoCs

pid	Process
2280	2788-29-0x00000000000F0000-0x0000000000466000-memory.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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dllhost.exe\" .."	Dllhost.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
2	6.tcp.eu.ngrok.io
12	6.tcp.eu.ngrok.io

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 6 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	2788-29-0x00000000000F0000-0x0000000000466000-memory.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
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
2296	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2280	2788-29-0x00000000000F0000-0x0000000000466000-memory.exe
1804	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

description	pid	Process
Token: SeDebugPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe
Token: 33	1804	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1804	Dllhost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 1804	2280	2788-29-0x00000000000F0000-0x0000000000466000-memory.exe	30
PID 2280 wrote to memory of 1804	2280	2788-29-0x00000000000F0000-0x0000000000466000-memory.exe	30
PID 2280 wrote to memory of 1804	2280	2788-29-0x00000000000F0000-0x0000000000466000-memory.exe	30
PID 2280 wrote to memory of 1804	2280	2788-29-0x00000000000F0000-0x0000000000466000-memory.exe	30
PID 1804 wrote to memory of 2296	1804	Dllhost.exe	31
PID 1804 wrote to memory of 2296	1804	Dllhost.exe	31
PID 1804 wrote to memory of 2296	1804	Dllhost.exe	31
PID 1804 wrote to memory of 2296	1804	Dllhost.exe	31
PID 2660 wrote to memory of 2928	2660	taskeng.exe	35
PID 2660 wrote to memory of 2928	2660	taskeng.exe	35
PID 2660 wrote to memory of 2928	2660	taskeng.exe	35
PID 2660 wrote to memory of 2928	2660	taskeng.exe	35
PID 2660 wrote to memory of 1392	2660	taskeng.exe	37
PID 2660 wrote to memory of 1392	2660	taskeng.exe	37
PID 2660 wrote to memory of 1392	2660	taskeng.exe	37
PID 2660 wrote to memory of 1392	2660	taskeng.exe	37
PID 2660 wrote to memory of 2612	2660	taskeng.exe	38
PID 2660 wrote to memory of 2612	2660	taskeng.exe	38
PID 2660 wrote to memory of 2612	2660	taskeng.exe	38
PID 2660 wrote to memory of 2612	2660	taskeng.exe	38

C:\Users\Admin\AppData\Local\Temp\2788-29-0x00000000000F0000-0x0000000000466000-memory.exe
"C:\Users\Admin\AppData\Local\Temp\2788-29-0x00000000000F0000-0x0000000000466000-memory.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2280
- 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:1804
- - 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:2296

C:\Windows\system32\taskeng.exe
taskeng.exe {1E261428-1551-4C80-83EC-27362131C08D} S-1-5-21-677481364-2238709445-1347953534-1000:JXXXDSWS\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2660
- 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:2928
- 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:1392
- 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:2612

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

Filesize
3.5MB

MD5
f41f059f4245ebc2caaa103103a4689a

SHA1
c0b40d6520b58ce3e484d0f7c9ded7237c6fa059

SHA256
2de37d5ef0c4b16a733af9802c00982fddb034f719b09c90140a7d65c7c97389

SHA512
d0bd25c6558dec7ad6fc5ca4ed382fad82766db1551f654553c95b61fe57b228117bb818baf191256a49ed8e07b86247877ddaba86047091034e09b7c9ae0473

Download Submit
memory/1392-22-0x0000000000F30000-0x00000000012A6000-memory.dmp

Filesize
3.5MB

Download
memory/1804-11-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/1804-12-0x00000000009B0000-0x0000000000D26000-memory.dmp

Filesize
3.5MB

Download
memory/1804-13-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/1804-16-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/1804-17-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-0-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

Filesize
4KB

Download
memory/2280-1-0x0000000000AC0000-0x0000000000E36000-memory.dmp

Filesize
3.5MB

Download
memory/2280-2-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/2280-10-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/2928-20-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads