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

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-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	fb92d98b147af3b765c213d1b42e6204_JaffaCakes118.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	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
3916	Dllhost.exe
1020	Server.exe
404	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-1-5-21-945322488-2060912225-3527527000-1000\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
5104	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
1672	fb92d98b147af3b765c213d1b42e6204_JaffaCakes118.exe
3916	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe
Token: 33	3916	Dllhost.exe
Token: SeIncBasePriorityPrivilege	3916	Dllhost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 3916	1672	fb92d98b147af3b765c213d1b42e6204_JaffaCakes118.exe	82
PID 1672 wrote to memory of 3916	1672	fb92d98b147af3b765c213d1b42e6204_JaffaCakes118.exe	82
PID 3916 wrote to memory of 5104	3916	Dllhost.exe	87
PID 3916 wrote to memory of 5104	3916	Dllhost.exe	87

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⤵
- Checks computer location settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1672
- 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:3916
- - 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:5104

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:1020

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:404

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Server.exe.log

Filesize
1KB

MD5
a8a147915e3a996fdbe10b3a3f1e1bb2

SHA1
abc564c1be468d57e700913e7b6cf8f62d421263

SHA256
8b96a8557deea66696837af011843d6a82451ba57c8f9b5a2726a70818d6fc7e

SHA512
17b42f17ef60a9f625703172763f692e5ed2ca93564a97853dfa72bb0ac6305ef3267aea0b205938e3aa8eac10156d9d4f322b30d0329d92d647bcec6372731c

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

Filesize
25KB

MD5
fb92d98b147af3b765c213d1b42e6204

SHA1
d7e56084f1093b866324a5b8afd54881e1bac787

SHA256
f90a864e9f30cd099f8e467ab39f6adadfcfa926a8c181603f3360e470512eb5

SHA512
aea8b826d9fd984c4dbfbd27c009847fcf7e27784e8730ca2b561e64e68a05d20b38299064ceb99a705dc2ad42f6e882b56ba4a2a543ae94a29b713f3e917668

Download Submit
memory/1672-0-0x00007FF850B83000-0x00007FF850B85000-memory.dmp

Filesize
8KB

Download
memory/1672-1-0x00000000001B0000-0x00000000001B8000-memory.dmp

Filesize
32KB

Download
memory/1672-2-0x0000000000950000-0x0000000000962000-memory.dmp

Filesize
72KB

Download
memory/1672-3-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/1672-15-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/3916-13-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/3916-14-0x00000000011A0000-0x00000000011B2000-memory.dmp

Filesize
72KB

Download
memory/3916-16-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/3916-19-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download
memory/3916-20-0x00007FF850B80000-0x00007FF851641000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads