njrat | 034fb6099b396601161d3076a4c80247cf30c46e3add3b2de6dea577209b4112

Analysis

max time kernel
149s
max time network
143s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
27-09-2024 23:56

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General

Target

fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Size

25KB
MD5

fb224fbe1aa6b663191cf1d730537fd6
SHA1

6a82fb803bbe3b20fb289b94f63c1cc2a6b97dee
SHA256

034fb6099b396601161d3076a4c80247cf30c46e3add3b2de6dea577209b4112
SHA512

383f6a9dc75b052354ac0ba59da6ad52daef796acaf2953d8cb5912e3bfa174729386e5172401a7676ad7c9bb934dff832ebbe0a8f15b39e0e9fa9e4bc40d505
SSDEEP

768:5vkGDkx0b/5+So7h4d7JRo4a/pPhsuE+fj:yf0b/5+Si4bWpFhsv+fj

Score

10^/10

njrat server persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

server

31.173.24.54:5552

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 opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
2908	Server.exe
2040	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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe\" .."	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe\" .."	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.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
836	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: 33	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 836	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe	29
PID 2972 wrote to memory of 836	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe	29
PID 2972 wrote to memory of 836	2972	fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe	29
PID 2880 wrote to memory of 2908	2880	taskeng.exe	32
PID 2880 wrote to memory of 2908	2880	taskeng.exe	32
PID 2880 wrote to memory of 2908	2880	taskeng.exe	32
PID 2880 wrote to memory of 2040	2880	taskeng.exe	33
PID 2880 wrote to memory of 2040	2880	taskeng.exe	33
PID 2880 wrote to memory of 2040	2880	taskeng.exe	33

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\fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fb224fbe1aa6b663191cf1d730537fd6_JaffaCakes118.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Windows\system32\schtasks.exe
  schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:836

C:\Windows\system32\taskeng.exe
taskeng.exe {5B599019-CEC4-4D8A-85B9-793DFE68DEE2} S-1-5-21-1506706701-1246725540-2219210854-1000:MUYDDIIS\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  PID:2908
- C:\Users\Admin\AppData\Local\Temp\Server.exe
  C:\Users\Admin\AppData\Local\Temp/Server.exe
  2⤵
  - Executes dropped EXE
  PID:2040

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
25KB

MD5
fb224fbe1aa6b663191cf1d730537fd6

SHA1
6a82fb803bbe3b20fb289b94f63c1cc2a6b97dee

SHA256
034fb6099b396601161d3076a4c80247cf30c46e3add3b2de6dea577209b4112

SHA512
383f6a9dc75b052354ac0ba59da6ad52daef796acaf2953d8cb5912e3bfa174729386e5172401a7676ad7c9bb934dff832ebbe0a8f15b39e0e9fa9e4bc40d505

Download Submit
memory/2908-17-0x000007FEF5860000-0x000007FEF61FD000-memory.dmp

Filesize
9.6MB

Download
memory/2908-16-0x00000000003A0000-0x00000000003B2000-memory.dmp

Filesize
72KB

Download
memory/2908-15-0x000007FEF5860000-0x000007FEF61FD000-memory.dmp

Filesize
9.6MB

Download
memory/2908-14-0x000007FEF5860000-0x000007FEF61FD000-memory.dmp

Filesize
9.6MB

Download
memory/2908-13-0x000007FEF5860000-0x000007FEF61FD000-memory.dmp

Filesize
9.6MB

Download
memory/2972-2-0x000007FEF5860000-0x000007FEF61FD000-memory.dmp

Filesize
9.6MB

Download
memory/2972-9-0x000007FEF5860000-0x000007FEF61FD000-memory.dmp

Filesize
9.6MB

Download
memory/2972-8-0x000007FEF5860000-0x000007FEF61FD000-memory.dmp

Filesize
9.6MB

Download
memory/2972-7-0x000007FEF5860000-0x000007FEF61FD000-memory.dmp

Filesize
9.6MB

Download
memory/2972-6-0x000007FEF5B1E000-0x000007FEF5B1F000-memory.dmp

Filesize
4KB

Download
memory/2972-0-0x000007FEF5B1E000-0x000007FEF5B1F000-memory.dmp

Filesize
4KB

Download
memory/2972-3-0x000007FEF5860000-0x000007FEF61FD000-memory.dmp

Filesize
9.6MB

Download
memory/2972-1-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads