njrat | 44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2

General

Target

44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2.exe
Size

373KB
MD5

c819c2f4182ab01c19557f8538a3c567
SHA1

10738a67ca9adf1ccee077e982b9fa8c24490f5b
SHA256

44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2
SHA512

c08f9187b2adb60175ad66d7689a5680862ec172273768955692c1d24b89ffe9e150db57513c6efccdc6c7190d5aa726a00c9da766a2b8d8b171c79afc975f5d
SSDEEP

6144:IcC5kJrhU/08Q0T0KpcR5yms0mLUePyNtvRaU4QOrPbyQYU22ROORcrvYP:IR5kJrKs0ThGR5fsJvPyLgUdGPbzYMW0

Score

10^/10

njrat evasion persistence trojan

Malware Config

Signatures

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

Processes:

System32.exe

pid process

3852 System32.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

2312 netsh.exe

pid	process
3852	System32.exe

pid	process
2312	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:

44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2.exe

Drops startup file 2 IoCs

Processes:

System32.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a33cad8d57868af781a5db451c516844.exe	System32.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a33cad8d57868af781a5db451c516844.exe	System32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

System32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a33cad8d57868af781a5db451c516844 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32.exe\" .."	System32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\a33cad8d57868af781a5db451c516844 = "\"C:\\Users\\Admin\\AppData\\Roaming\\System32.exe\" .."	System32.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

Processes:

System32.exe

description	pid	process
Token: SeDebugPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe
Token: 33	3852	System32.exe
Token: SeIncBasePriorityPrivilege	3852	System32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2.exeSystem32.exe

description	pid	process	target process
PID 2532 wrote to memory of 3852	2532	44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2.exe	System32.exe
PID 2532 wrote to memory of 3852	2532	44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2.exe	System32.exe
PID 2532 wrote to memory of 3852	2532	44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2.exe	System32.exe
PID 3852 wrote to memory of 2312	3852	System32.exe	netsh.exe
PID 3852 wrote to memory of 2312	3852	System32.exe	netsh.exe
PID 3852 wrote to memory of 2312	3852	System32.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2.exe
"C:\Users\Admin\AppData\Local\Temp\44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2532

C:\Users\Admin\AppData\Roaming\System32.exe
"C:\Users\Admin\AppData\Roaming\System32.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3852

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\System32.exe" "System32.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:2312

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\Roaming\System32.exe
Filesize
373KB

MD5
c819c2f4182ab01c19557f8538a3c567

SHA1
10738a67ca9adf1ccee077e982b9fa8c24490f5b

SHA256
44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2

SHA512
c08f9187b2adb60175ad66d7689a5680862ec172273768955692c1d24b89ffe9e150db57513c6efccdc6c7190d5aa726a00c9da766a2b8d8b171c79afc975f5d

Download Submit
C:\Users\Admin\AppData\Roaming\System32.exe
Filesize
373KB

MD5
c819c2f4182ab01c19557f8538a3c567

SHA1
10738a67ca9adf1ccee077e982b9fa8c24490f5b

SHA256
44301d3588d08c7b1260355d02037e0becffe7634c991937498f3a7314534af2

SHA512
c08f9187b2adb60175ad66d7689a5680862ec172273768955692c1d24b89ffe9e150db57513c6efccdc6c7190d5aa726a00c9da766a2b8d8b171c79afc975f5d

Download Submit
memory/2312-138-0x0000000000000000-mapping.dmp

Download
memory/2532-132-0x00000000753C0000-0x0000000075971000-memory.dmp

Filesize
5.7MB

Download
memory/2532-136-0x00000000753C0000-0x0000000075971000-memory.dmp

Filesize
5.7MB

Download
memory/3852-133-0x0000000000000000-mapping.dmp

Download
memory/3852-137-0x00000000753C0000-0x0000000075971000-memory.dmp

Filesize
5.7MB

Download
memory/3852-139-0x00000000753C0000-0x0000000075971000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads