njrat | 9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc

General

Target

9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc.exe
Size

23KB
MD5

d79fa6101c38f4bbcd81d853f0aa18bb
SHA1

0df544e32c4b3c2f58cbd15c68af48dfb3b58200
SHA256

9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc
SHA512

9e4b244e0983882d9411e67a149fa32a5b1f8981dbdf004ce1358b4bb3daf7ba22483f127238d257cbab4eef3877f7876710bc53a72427f2b4ef9ce00b4dc86d

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

198.169.0.1:1604

Mutex

8b8cfe492ab67f57b448c0add5ef7412

Attributes

reg_key
8b8cfe492ab67f57b448c0add5ef7412
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

4140 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4844 netsh.exe

pid	process
4140	server.exe

pid	process
4844	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:

9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\8b8cfe492ab67f57b448c0add5ef7412 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\8b8cfe492ab67f57b448c0add5ef7412 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 23 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	4140	server.exe
Token: 33	4140	server.exe
Token: SeIncBasePriorityPrivilege	4140	server.exe
Token: 33	4140	server.exe
Token: SeIncBasePriorityPrivilege	4140	server.exe
Token: 33	4140	server.exe
Token: SeIncBasePriorityPrivilege	4140	server.exe
Token: 33	4140	server.exe
Token: SeIncBasePriorityPrivilege	4140	server.exe
Token: 33	4140	server.exe
Token: SeIncBasePriorityPrivilege	4140	server.exe
Token: 33	4140	server.exe
Token: SeIncBasePriorityPrivilege	4140	server.exe
Token: 33	4140	server.exe
Token: SeIncBasePriorityPrivilege	4140	server.exe
Token: 33	4140	server.exe
Token: SeIncBasePriorityPrivilege	4140	server.exe
Token: 33	4140	server.exe
Token: SeIncBasePriorityPrivilege	4140	server.exe
Token: 33	4140	server.exe
Token: SeIncBasePriorityPrivilege	4140	server.exe
Token: 33	4140	server.exe
Token: SeIncBasePriorityPrivilege	4140	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc.exeserver.exe

description	pid	process	target process
PID 1884 wrote to memory of 4140	1884	9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc.exe	server.exe
PID 1884 wrote to memory of 4140	1884	9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc.exe	server.exe
PID 1884 wrote to memory of 4140	1884	9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc.exe	server.exe
PID 4140 wrote to memory of 4844	4140	server.exe	netsh.exe
PID 4140 wrote to memory of 4844	4140	server.exe	netsh.exe
PID 4140 wrote to memory of 4844	4140	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc.exe
"C:\Users\Admin\AppData\Local\Temp\9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1884

C:\Users\Admin\AppData\Local\Temp\server.exe
"C:\Users\Admin\AppData\Local\Temp\server.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4140

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:4844

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
23KB

MD5
d79fa6101c38f4bbcd81d853f0aa18bb

SHA1
0df544e32c4b3c2f58cbd15c68af48dfb3b58200

SHA256
9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc

SHA512
9e4b244e0983882d9411e67a149fa32a5b1f8981dbdf004ce1358b4bb3daf7ba22483f127238d257cbab4eef3877f7876710bc53a72427f2b4ef9ce00b4dc86d

Download Submit
C:\Users\Admin\AppData\Local\Temp\server.exe
Filesize
23KB

MD5
d79fa6101c38f4bbcd81d853f0aa18bb

SHA1
0df544e32c4b3c2f58cbd15c68af48dfb3b58200

SHA256
9ff8be4e2eccb72adaaa262e44bff1a2445e759f3e284a91ca8b130ef836b4bc

SHA512
9e4b244e0983882d9411e67a149fa32a5b1f8981dbdf004ce1358b4bb3daf7ba22483f127238d257cbab4eef3877f7876710bc53a72427f2b4ef9ce00b4dc86d

Download Submit
memory/1884-130-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/1884-131-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/1884-136-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/4140-132-0x0000000000000000-mapping.dmp

Download
memory/4140-135-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/4140-138-0x0000000074ED0000-0x0000000075481000-memory.dmp

Filesize
5.7MB

Download
memory/4844-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads