njrat | 43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3

General

Target

43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3.exe
Size

23KB
MD5

40cda800e43b114bb9203406ecb8c8ad
SHA1

7297cac248e8ab5e40585bff16f32e21b876f910
SHA256

43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3
SHA512

8cb95ab8b412642bcba9a6bd2e5a47e95b65f6a20aff1bc8ad6f5cd2e1fcadcc1d1fa7234fd4fee12e42ad5b46466213f437221e2c4a9ac6df6ef395a2d41d1d
SSDEEP

384:CMQ+SAN7uprgvM5OSUswZXg69gbm4hfpFmRvR6JZlbw8hqIusZzZz6:8OaxVULRpcnuB

Score

10^/10

njrat facebook evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

facebook

C2

webhosting.no-ip.biz:1177

Mutex

f80c58c81bb54cc02a5aa1df65019452

Attributes

reg_key
f80c58c81bb54cc02a5aa1df65019452
splitter
|'|'|

Signatures

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

Processes:

win32.exe

pid process

2228 win32.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4412 netsh.exe

pid	process
2228	win32.exe

pid	process
4412	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:

43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3.exe

Drops startup file 2 IoCs

Processes:

win32.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f80c58c81bb54cc02a5aa1df65019452.exe	win32.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\f80c58c81bb54cc02a5aa1df65019452.exe	win32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

win32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f80c58c81bb54cc02a5aa1df65019452 = "\"C:\\Users\\Admin\\win32.exe\" .."	win32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\f80c58c81bb54cc02a5aa1df65019452 = "\"C:\\Users\\Admin\\win32.exe\" .."	win32.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 33 IoCs

Processes:

win32.exe

description	pid	process
Token: SeDebugPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe
Token: 33	2228	win32.exe
Token: SeIncBasePriorityPrivilege	2228	win32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3.exewin32.exe

description	pid	process	target process
PID 1568 wrote to memory of 2228	1568	43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3.exe	win32.exe
PID 1568 wrote to memory of 2228	1568	43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3.exe	win32.exe
PID 1568 wrote to memory of 2228	1568	43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3.exe	win32.exe
PID 2228 wrote to memory of 4412	2228	win32.exe	netsh.exe
PID 2228 wrote to memory of 4412	2228	win32.exe	netsh.exe
PID 2228 wrote to memory of 4412	2228	win32.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3.exe
"C:\Users\Admin\AppData\Local\Temp\43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1568

C:\Users\Admin\win32.exe
"C:\Users\Admin\win32.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\win32.exe" "win32.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:4412

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

Replay Monitor

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Downloads

C:\Users\Admin\win32.exe
Filesize
23KB

MD5
40cda800e43b114bb9203406ecb8c8ad

SHA1
7297cac248e8ab5e40585bff16f32e21b876f910

SHA256
43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3

SHA512
8cb95ab8b412642bcba9a6bd2e5a47e95b65f6a20aff1bc8ad6f5cd2e1fcadcc1d1fa7234fd4fee12e42ad5b46466213f437221e2c4a9ac6df6ef395a2d41d1d

Download Submit
C:\Users\Admin\win32.exe
Filesize
23KB

MD5
40cda800e43b114bb9203406ecb8c8ad

SHA1
7297cac248e8ab5e40585bff16f32e21b876f910

SHA256
43740f31d6b03b4967c588f75058cb066c6fd7873356e1f6daedb39f449276a3

SHA512
8cb95ab8b412642bcba9a6bd2e5a47e95b65f6a20aff1bc8ad6f5cd2e1fcadcc1d1fa7234fd4fee12e42ad5b46466213f437221e2c4a9ac6df6ef395a2d41d1d

Download Submit
memory/1568-132-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/1568-136-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/2228-133-0x0000000000000000-mapping.dmp

Download
memory/2228-137-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/2228-139-0x0000000074AB0000-0x0000000075061000-memory.dmp

Filesize
5.7MB

Download
memory/4412-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads