njrat | 48dceb581254c8f4088b359ac73a22c44dd9bd8143ee4ddd04c0996e9543d184

General

Target

ffe01866101207852dcc491927429a66_JaffaCakes118.exe
Size

216KB
MD5

ffe01866101207852dcc491927429a66
SHA1

5e261a072f450b840683ffdde89a6dcf22af4fa8
SHA256

48dceb581254c8f4088b359ac73a22c44dd9bd8143ee4ddd04c0996e9543d184
SHA512

a8026d8540ce5d09b81567a394ba0310ac34efe08845f4977be9516faa0aaa8d267e39b38b9a6cafbd4c4c3cb432604c9eeed6d267b3980ebe86d4052acddfa7
SSDEEP

3072:VJacj8v7wQ+ZGx7w8wjjP8I1IU8RjrzzvUWAOZjfKdLCYP:VJPgv7wJZ87wBjYI1IUwrIOZylP

Score

10^/10

njrat hacked evasion persistence trojan upx

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

Hacked

C2

abdo95.ddns.net:1177

Mutex

ed6e2bf930f6d35b3ac57c049d10ac2c

Attributes

reg_key
ed6e2bf930f6d35b3ac57c049d10ac2c
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Modifies Windows Firewall 2 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Disable or Modify System Firewall
T1562.004

Processes:

netsh.exe

pid process

2724 netsh.exe
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

Processes:

test.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation test.exe

pid	process
2724	netsh.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	test.exe

Drops startup file 2 IoCs

Processes:

Explorer.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ed6e2bf930f6d35b3ac57c049d10ac2c.exe	Explorer.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ed6e2bf930f6d35b3ac57c049d10ac2c.exe	Explorer.exe

Executes dropped EXE 2 IoCs

Processes:

test.exeExplorer.exe

pid process

32 test.exe
3980 Explorer.exe

pid	process
32	test.exe
3980	Explorer.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4480-0-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral2/memory/4480-8-0x0000000000400000-0x0000000000498000-memory.dmp	upx
behavioral2/memory/4480-26-0x0000000000400000-0x0000000000498000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ed6e2bf930f6d35b3ac57c049d10ac2c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Explorer.exe\" .."	Explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ed6e2bf930f6d35b3ac57c049d10ac2c = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Explorer.exe\" .."	Explorer.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 39 IoCs

Processes:

Explorer.exe

pid	process
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe
3980	Explorer.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

Explorer.exe

description pid process

Token: SeDebugPrivilege 3980 Explorer.exe

description	pid	process
Token: SeDebugPrivilege	3980	Explorer.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ffe01866101207852dcc491927429a66_JaffaCakes118.execmd.exetest.exeExplorer.exe

description	pid	process	target process
PID 4480 wrote to memory of 4340	4480	ffe01866101207852dcc491927429a66_JaffaCakes118.exe	cmd.exe
PID 4480 wrote to memory of 4340	4480	ffe01866101207852dcc491927429a66_JaffaCakes118.exe	cmd.exe
PID 4480 wrote to memory of 4340	4480	ffe01866101207852dcc491927429a66_JaffaCakes118.exe	cmd.exe
PID 4340 wrote to memory of 32	4340	cmd.exe	test.exe
PID 4340 wrote to memory of 32	4340	cmd.exe	test.exe
PID 4340 wrote to memory of 32	4340	cmd.exe	test.exe
PID 32 wrote to memory of 3980	32	test.exe	Explorer.exe
PID 32 wrote to memory of 3980	32	test.exe	Explorer.exe
PID 32 wrote to memory of 3980	32	test.exe	Explorer.exe
PID 3980 wrote to memory of 2724	3980	Explorer.exe	netsh.exe
PID 3980 wrote to memory of 2724	3980	Explorer.exe	netsh.exe
PID 3980 wrote to memory of 2724	3980	Explorer.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\ffe01866101207852dcc491927429a66_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ffe01866101207852dcc491927429a66_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4480

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c test.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:4340

C:\Users\Admin\AppData\Local\Temp\test.exe
test.exe
3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:32

C:\Users\Admin\AppData\Local\Temp\Explorer.exe
"C:\Users\Admin\AppData\Local\Temp\Explorer.exe"
4⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3980

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Explorer.exe" "Explorer.exe" ENABLE
5⤵
- Modifies Windows Firewall
PID:2724

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4144 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
1⤵
PID:964

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\test.exe
Filesize
29KB

MD5
fc42513e45503d510fb011bbb309e51e

SHA1
e9741466f6e68dadb9e874f12d5b62fe14693741

SHA256
766240fd9026a04e4a7f20240f699133eef24a969e242afdd471ad0a179cefe3

SHA512
0f2a88f96a8a47abe062ccca986d2b3d98310374629c9067b19dbfeb73f23ba411b3ca5ae3877684770fb2d25947305b42c38a913a329e6220de6cd5d539a8ca

Download Submit
memory/32-11-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/32-5-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/32-6-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/32-7-0x0000000001A90000-0x0000000001AA0000-memory.dmp

Filesize
64KB

Download
memory/32-22-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/3980-21-0x0000000001840000-0x0000000001850000-memory.dmp

Filesize
64KB

Download
memory/3980-20-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/3980-23-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/3980-30-0x0000000001840000-0x0000000001850000-memory.dmp

Filesize
64KB

Download
memory/3980-31-0x0000000001840000-0x0000000001850000-memory.dmp

Filesize
64KB

Download
memory/3980-32-0x00000000750F0000-0x00000000756A1000-memory.dmp

Filesize
5.7MB

Download
memory/3980-33-0x0000000001840000-0x0000000001850000-memory.dmp

Filesize
64KB

Download
memory/3980-34-0x0000000001840000-0x0000000001850000-memory.dmp

Filesize
64KB

Download
memory/3980-35-0x0000000001840000-0x0000000001850000-memory.dmp

Filesize
64KB

Download
memory/4480-0-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/4480-8-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/4480-26-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads