njrat | c6d0e07fcebfbea85ffc77c796f87d47048d24e39d0c81e5b881cffcb2aba29e

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/11/2022, 17:54

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General

Target

c6d0e07fcebfbea85ffc77c796f87d47048d24e39d0c81e5b881cffcb2aba29e.exe
Size

37KB
MD5

2817c011989e9651e3b2bc75e2bb0190
SHA1

254230a43c2f92381595a6bb03fe75234efe191e
SHA256

c6d0e07fcebfbea85ffc77c796f87d47048d24e39d0c81e5b881cffcb2aba29e
SHA512

bbc58966bd9c076e1c992b44fa6024a79b3378594a6c548dcf8c17f5fb4c2304ffa0c07addc7e42711fc829f254fd192954807280ea42c4b4ce6880a0f05d309
SSDEEP

384:fOveoixJhl7OHg1WykrppPl48uiX60rAF+rMRTyN/0L+EcoinblneHQM3epzXlNi:2v+R1NkrppqFidrM+rMRa8Nuzwt

Score

10^/10

njrat hacked evasion trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

5.tcp.eu.ngrok.io:17656

Mutex

5c1305f84d4de84c49a562943d8b6467

Attributes

reg_key
5c1305f84d4de84c49a562943d8b6467
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Executes dropped EXE 1 IoCs

pid	Process
2652	server.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
480	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	c6d0e07fcebfbea85ffc77c796f87d47048d24e39d0c81e5b881cffcb2aba29e.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 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe
Token: 33	2652	server.exe
Token: SeIncBasePriorityPrivilege	2652	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4420 wrote to memory of 2652	4420	c6d0e07fcebfbea85ffc77c796f87d47048d24e39d0c81e5b881cffcb2aba29e.exe	80
PID 4420 wrote to memory of 2652	4420	c6d0e07fcebfbea85ffc77c796f87d47048d24e39d0c81e5b881cffcb2aba29e.exe	80
PID 4420 wrote to memory of 2652	4420	c6d0e07fcebfbea85ffc77c796f87d47048d24e39d0c81e5b881cffcb2aba29e.exe	80
PID 2652 wrote to memory of 480	2652	server.exe	81
PID 2652 wrote to memory of 480	2652	server.exe	81
PID 2652 wrote to memory of 480	2652	server.exe	81

C:\Users\Admin\AppData\Local\Temp\c6d0e07fcebfbea85ffc77c796f87d47048d24e39d0c81e5b881cffcb2aba29e.exe
"C:\Users\Admin\AppData\Local\Temp\c6d0e07fcebfbea85ffc77c796f87d47048d24e39d0c81e5b881cffcb2aba29e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4420
- C:\Users\Admin\AppData\Roaming\server.exe
  "C:\Users\Admin\AppData\Roaming\server.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2652
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:480

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\server.exe

Filesize
37KB

MD5
2817c011989e9651e3b2bc75e2bb0190

SHA1
254230a43c2f92381595a6bb03fe75234efe191e

SHA256
c6d0e07fcebfbea85ffc77c796f87d47048d24e39d0c81e5b881cffcb2aba29e

SHA512
bbc58966bd9c076e1c992b44fa6024a79b3378594a6c548dcf8c17f5fb4c2304ffa0c07addc7e42711fc829f254fd192954807280ea42c4b4ce6880a0f05d309

Download Submit
C:\Users\Admin\AppData\Roaming\server.exe

Filesize
37KB

MD5
2817c011989e9651e3b2bc75e2bb0190

SHA1
254230a43c2f92381595a6bb03fe75234efe191e

SHA256
c6d0e07fcebfbea85ffc77c796f87d47048d24e39d0c81e5b881cffcb2aba29e

SHA512
bbc58966bd9c076e1c992b44fa6024a79b3378594a6c548dcf8c17f5fb4c2304ffa0c07addc7e42711fc829f254fd192954807280ea42c4b4ce6880a0f05d309

Download Submit
memory/2652-137-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2652-139-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/4420-132-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/4420-136-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download