njrat | c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872

General

Target

c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872.exe
Size

23KB
MD5

6b59f7a30dc5525804d541add4dbbae0
SHA1

955f87e370ac487f617d7e8df7cd7a44bd11a80f
SHA256

c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872
SHA512

7aa2e2feeff4f8dab2fc3e82e84214d86257da591071013fdd3faf502f420c290c404e97756270a6f5dc996ea92ed984afcb21862d1e0bcfa78b264142c0dcd1
SSDEEP

384:F8aLWS0dABLYVq6RxP8MDFF09vK563gRMmJKUv0mRvR6JZlbw8hqIusZzZ17/:WXcwt3tRpcnuqD

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

127.0.0.1:5562

Mutex

40d41935c162474c077082fd99af2520

Attributes

reg_key
40d41935c162474c077082fd99af2520
splitter
|'|'|

Signatures

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

Processes:

server.exe

pid process

2844 server.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1064 netsh.exe

pid	process
2844	server.exe

pid	process
1064	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:

c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872.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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\40d41935c162474c077082fd99af2520 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\40d41935c162474c077082fd99af2520 = "\"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 31 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe
Token: 33	2844	server.exe
Token: SeIncBasePriorityPrivilege	2844	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872.exeserver.exe

description	pid	process	target process
PID 2524 wrote to memory of 2844	2524	c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872.exe	server.exe
PID 2524 wrote to memory of 2844	2524	c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872.exe	server.exe
PID 2524 wrote to memory of 2844	2524	c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872.exe	server.exe
PID 2844 wrote to memory of 1064	2844	server.exe	netsh.exe
PID 2844 wrote to memory of 1064	2844	server.exe	netsh.exe
PID 2844 wrote to memory of 1064	2844	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872.exe
"C:\Users\Admin\AppData\Local\Temp\c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2524

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:2844

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:1064

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

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

MD5
6b59f7a30dc5525804d541add4dbbae0

SHA1
955f87e370ac487f617d7e8df7cd7a44bd11a80f

SHA256
c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872

SHA512
7aa2e2feeff4f8dab2fc3e82e84214d86257da591071013fdd3faf502f420c290c404e97756270a6f5dc996ea92ed984afcb21862d1e0bcfa78b264142c0dcd1

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

MD5
6b59f7a30dc5525804d541add4dbbae0

SHA1
955f87e370ac487f617d7e8df7cd7a44bd11a80f

SHA256
c0a1eb0c14c3a9dfd54e8ab7abbaa794efd01e0b4ca2e7e0a8f62efe7272a872

SHA512
7aa2e2feeff4f8dab2fc3e82e84214d86257da591071013fdd3faf502f420c290c404e97756270a6f5dc996ea92ed984afcb21862d1e0bcfa78b264142c0dcd1

Download Submit
memory/1064-139-0x0000000000000000-mapping.dmp

Download
memory/2524-132-0x00000000746C0000-0x0000000074C71000-memory.dmp

Filesize
5.7MB

Download
memory/2524-133-0x00000000746C0000-0x0000000074C71000-memory.dmp

Filesize
5.7MB

Download
memory/2524-137-0x00000000746C0000-0x0000000074C71000-memory.dmp

Filesize
5.7MB

Download
memory/2844-134-0x0000000000000000-mapping.dmp

Download
memory/2844-138-0x00000000746C0000-0x0000000074C71000-memory.dmp

Filesize
5.7MB

Download
memory/2844-140-0x00000000746C0000-0x0000000074C71000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads