njrat | e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1

General

Target

e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1.exe
Size

23KB
MD5

75af76d2a53d30d3d005ed79719b0839
SHA1

e811f724203ec37b0ac9906349db186a190540ba
SHA256

e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1
SHA512

d512cbbe97f7a1bb6bd7744192e7b845d89544ef008cd241d22b4f69ebc9be8796388efe49a96d7d203fc994f8af8ece63f2664560a357f943db74e611c177a7

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

tplinklocal.linkpc.net:1177

Mutex

ac439180f0d27caad533e0a9c298c9a2

Attributes

reg_key
ac439180f0d27caad533e0a9c298c9a2
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

876 server.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
876	server.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:

e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1.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\ac439180f0d27caad533e0a9c298c9a2 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ac439180f0d27caad533e0a9c298c9a2 = "\"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 19 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	876	server.exe
Token: 33	876	server.exe
Token: SeIncBasePriorityPrivilege	876	server.exe
Token: 33	876	server.exe
Token: SeIncBasePriorityPrivilege	876	server.exe
Token: 33	876	server.exe
Token: SeIncBasePriorityPrivilege	876	server.exe
Token: 33	876	server.exe
Token: SeIncBasePriorityPrivilege	876	server.exe
Token: 33	876	server.exe
Token: SeIncBasePriorityPrivilege	876	server.exe
Token: 33	876	server.exe
Token: SeIncBasePriorityPrivilege	876	server.exe
Token: 33	876	server.exe
Token: SeIncBasePriorityPrivilege	876	server.exe
Token: 33	876	server.exe
Token: SeIncBasePriorityPrivilege	876	server.exe
Token: 33	876	server.exe
Token: SeIncBasePriorityPrivilege	876	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1.exeserver.exe

description	pid	process	target process
PID 3588 wrote to memory of 876	3588	e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1.exe	server.exe
PID 3588 wrote to memory of 876	3588	e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1.exe	server.exe
PID 3588 wrote to memory of 876	3588	e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1.exe	server.exe
PID 876 wrote to memory of 4492	876	server.exe	netsh.exe
PID 876 wrote to memory of 4492	876	server.exe	netsh.exe
PID 876 wrote to memory of 4492	876	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1.exe
"C:\Users\Admin\AppData\Local\Temp\e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3588

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:876

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
3⤵
PID:4492

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
75af76d2a53d30d3d005ed79719b0839

SHA1
e811f724203ec37b0ac9906349db186a190540ba

SHA256
e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1

SHA512
d512cbbe97f7a1bb6bd7744192e7b845d89544ef008cd241d22b4f69ebc9be8796388efe49a96d7d203fc994f8af8ece63f2664560a357f943db74e611c177a7

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

MD5
75af76d2a53d30d3d005ed79719b0839

SHA1
e811f724203ec37b0ac9906349db186a190540ba

SHA256
e58d01ecd88c6acb84893e0a4ecbc823cc3715770d22e1e761f9c5ec9b44d5b1

SHA512
d512cbbe97f7a1bb6bd7744192e7b845d89544ef008cd241d22b4f69ebc9be8796388efe49a96d7d203fc994f8af8ece63f2664560a357f943db74e611c177a7

Download Submit
memory/876-131-0x0000000000000000-mapping.dmp

Download
memory/876-134-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/3588-130-0x0000000075130000-0x00000000756E1000-memory.dmp

Filesize
5.7MB

Download
memory/4492-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads