njrat | f90a864e9f30cd099f8e467ab39f6adadfcfa926a8c181603f3360e470512eb5

General

Target

fb92d98b147af3b765c213d1b42e6204_JaffaCakes118.exe
Size

25KB
MD5

fb92d98b147af3b765c213d1b42e6204
SHA1

d7e56084f1093b866324a5b8afd54881e1bac787
SHA256

f90a864e9f30cd099f8e467ab39f6adadfcfa926a8c181603f3360e470512eb5
SHA512

aea8b826d9fd984c4dbfbd27c009847fcf7e27784e8730ca2b561e64e68a05d20b38299064ceb99a705dc2ad42f6e882b56ba4a2a543ae94a29b713f3e917668
SSDEEP

384:sv3ZIr+2Zsz3IVjucbU4K9Wu8Yu8jeljFT5rIjku0/yfFLlvb/wc69fhQZ8T:svpvrD/B45LQe75obthD4raZe

Score

10^/10

njrat hacked persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

HacKed

C2

127.0.0.1:5552

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

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 3 IoCs

pid	Process
2780	Dllhost.exe
2960	Server.exe
2936	Server.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"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

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
2588	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
2644	fb92d98b147af3b765c213d1b42e6204_JaffaCakes118.exe
2780	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe
Token: 33	2780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	2780	Dllhost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2780	2644	fb92d98b147af3b765c213d1b42e6204_JaffaCakes118.exe	30
PID 2644 wrote to memory of 2780	2644	fb92d98b147af3b765c213d1b42e6204_JaffaCakes118.exe	30
PID 2644 wrote to memory of 2780	2644	fb92d98b147af3b765c213d1b42e6204_JaffaCakes118.exe	30
PID 2780 wrote to memory of 2588	2780	Dllhost.exe	31
PID 2780 wrote to memory of 2588	2780	Dllhost.exe	31
PID 2780 wrote to memory of 2588	2780	Dllhost.exe	31
PID 2344 wrote to memory of 2960	2344	taskeng.exe	34
PID 2344 wrote to memory of 2960	2344	taskeng.exe	34
PID 2344 wrote to memory of 2960	2344	taskeng.exe	34
PID 2344 wrote to memory of 2936	2344	taskeng.exe	35
PID 2344 wrote to memory of 2936	2344	taskeng.exe	35
PID 2344 wrote to memory of 2936	2344	taskeng.exe	35

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\fb92d98b147af3b765c213d1b42e6204_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb92d98b147af3b765c213d1b42e6204_JaffaCakes118.exe"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2644
- 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
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2780
- - C:\Windows\system32\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2588

C:\Windows\system32\taskeng.exe
taskeng.exe {EB6DC9BC-0220-44E5-90D7-85F59EBBB6CC} S-1-5-21-3551809350-4263495960-1443967649-1000:NNYJZAHP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2344
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  PID:2960
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  PID:2936

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

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
25KB

MD5
fb92d98b147af3b765c213d1b42e6204

SHA1
d7e56084f1093b866324a5b8afd54881e1bac787

SHA256
f90a864e9f30cd099f8e467ab39f6adadfcfa926a8c181603f3360e470512eb5

SHA512
aea8b826d9fd984c4dbfbd27c009847fcf7e27784e8730ca2b561e64e68a05d20b38299064ceb99a705dc2ad42f6e882b56ba4a2a543ae94a29b713f3e917668

Download Submit
memory/2644-0-0x000007FEF5DC3000-0x000007FEF5DC4000-memory.dmp

Filesize
4KB

Download
memory/2644-1-0x0000000000C20000-0x0000000000C28000-memory.dmp

Filesize
32KB

Download
memory/2644-2-0x00000000004D0000-0x00000000004E2000-memory.dmp

Filesize
72KB

Download
memory/2644-3-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download
memory/2644-11-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download
memory/2780-9-0x0000000000820000-0x0000000000828000-memory.dmp

Filesize
32KB

Download
memory/2780-10-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download
memory/2780-12-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download
memory/2780-15-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download
memory/2780-16-0x000007FEF5DC0000-0x000007FEF67AC000-memory.dmp

Filesize
9.9MB

Download
memory/2936-22-0x0000000000140000-0x0000000000148000-memory.dmp

Filesize
32KB

Download
memory/2960-20-0x0000000000E60000-0x0000000000E68000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads