njrat | 8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46

General

Target

8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46.exe
Size

37KB
MD5

f1ea4cab8e7dd69fbe0c1da59af89b91
SHA1

3d0786e1b992d697ee68d802d0f7cd79c86f1218
SHA256

8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46
SHA512

6aed9ec70ff1953083895cee68d2b49c590e6d85b31b3e3d608650f33455dc3e4b9e8401bba2dc97739498cbfc2a8aa49999ef589f5b2da925fde98d4efd6d67

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

134.249.177.58:1604

Mutex

c63beb330f10178c51fbfc0f300e7ec2

Attributes

reg_key
c63beb330f10178c51fbfc0f300e7ec2
splitter
|'|'|

Signatures

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

Processes:

lox.exe

pid process

4132 lox.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
4132	lox.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:

8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46.exe

Drops startup file 2 IoCs

Processes:

lox.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c63beb330f10178c51fbfc0f300e7ec2.exe	lox.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c63beb330f10178c51fbfc0f300e7ec2.exe	lox.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

lox.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c63beb330f10178c51fbfc0f300e7ec2 = "\"C:\\Users\\Admin\\lox.exe\" .."	lox.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\c63beb330f10178c51fbfc0f300e7ec2 = "\"C:\\Users\\Admin\\lox.exe\" .."	lox.exe

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

System Information Discovery
T1082
Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

2820 taskkill.exe

pid	process
2820	taskkill.exe

Suspicious use of AdjustPrivilegeToken 32 IoCs

Processes:

lox.exetaskkill.exe

description	pid	process
Token: SeDebugPrivilege	4132	lox.exe
Token: SeDebugPrivilege	2820	taskkill.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe
Token: 33	4132	lox.exe
Token: SeIncBasePriorityPrivilege	4132	lox.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46.exelox.exe

description	pid	process	target process
PID 1056 wrote to memory of 4132	1056	8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46.exe	lox.exe
PID 1056 wrote to memory of 4132	1056	8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46.exe	lox.exe
PID 1056 wrote to memory of 4132	1056	8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46.exe	lox.exe
PID 4132 wrote to memory of 1280	4132	lox.exe	netsh.exe
PID 4132 wrote to memory of 1280	4132	lox.exe	netsh.exe
PID 4132 wrote to memory of 1280	4132	lox.exe	netsh.exe
PID 4132 wrote to memory of 2820	4132	lox.exe	taskkill.exe
PID 4132 wrote to memory of 2820	4132	lox.exe	taskkill.exe
PID 4132 wrote to memory of 2820	4132	lox.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46.exe
"C:\Users\Admin\AppData\Local\Temp\8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1056

C:\Users\Admin\lox.exe
"C:\Users\Admin\lox.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4132

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\lox.exe" "lox.exe" ENABLE
3⤵
PID:1280

C:\Windows\SysWOW64\taskkill.exe
taskkill /F /IM Avast.exe
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2820

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\lox.exe
Filesize
37KB

MD5
f1ea4cab8e7dd69fbe0c1da59af89b91

SHA1
3d0786e1b992d697ee68d802d0f7cd79c86f1218

SHA256
8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46

SHA512
6aed9ec70ff1953083895cee68d2b49c590e6d85b31b3e3d608650f33455dc3e4b9e8401bba2dc97739498cbfc2a8aa49999ef589f5b2da925fde98d4efd6d67

Download Submit
C:\Users\Admin\lox.exe
Filesize
37KB

MD5
f1ea4cab8e7dd69fbe0c1da59af89b91

SHA1
3d0786e1b992d697ee68d802d0f7cd79c86f1218

SHA256
8ff239af6d8b798d47de9cbca70daa8f464ee3a27b16217659d7f3c96b51fc46

SHA512
6aed9ec70ff1953083895cee68d2b49c590e6d85b31b3e3d608650f33455dc3e4b9e8401bba2dc97739498cbfc2a8aa49999ef589f5b2da925fde98d4efd6d67

Download Submit
memory/1056-130-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download
memory/1280-135-0x0000000000000000-mapping.dmp

Download
memory/2820-136-0x0000000000000000-mapping.dmp

Download
memory/4132-131-0x0000000000000000-mapping.dmp

Download
memory/4132-134-0x0000000074BC0000-0x0000000075171000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads