njrat | 59ca5f6efd8cf1671b0587c2ad1bb050b5d77a3614998647ae73ee28122ef44a

Analysis

max time kernel
153s
max time network
183s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
28/11/2022, 00:55

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

59ca5f6efd8cf1671b0587c2ad1bb050b5d77a3614998647ae73ee28122ef44a.exe
Size

131KB
MD5

bd92816a86e3a7013682af920eb4a20a
SHA1

3672aa86ad0195dfb84d885dc1ab5be8117f2a74
SHA256

59ca5f6efd8cf1671b0587c2ad1bb050b5d77a3614998647ae73ee28122ef44a
SHA512

23f19f09d9ea90bffed7ab849c954e4e6663bfe45e628690bfe541e489fad18105d29adfe24fd6be9f7758af880f6dc4d6c0a8549669a6d2f2a472a07a0d401c
SSDEEP

3072:AA1UJCm8pZiVQXFv6wLlfzOSzgWQ87M/RHVDzkkH:F9h6wJf6SzI87SZzkk

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

pid	Process
1180	server.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1936	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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	59ca5f6efd8cf1671b0587c2ad1bb050b5d77a3614998647ae73ee28122ef44a.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e1ede50f150612b579be2ac7977f74ed.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\e1ede50f150612b579be2ac7977f74ed.exe	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e1ede50f150612b579be2ac7977f74ed = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\server.exe\" .."	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\e1ede50f150612b579be2ac7977f74ed = "\"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 21 IoCs

description	pid	Process
Token: SeDebugPrivilege	1180	server.exe
Token: 33	1180	server.exe
Token: SeIncBasePriorityPrivilege	1180	server.exe
Token: 33	1180	server.exe
Token: SeIncBasePriorityPrivilege	1180	server.exe
Token: 33	1180	server.exe
Token: SeIncBasePriorityPrivilege	1180	server.exe
Token: 33	1180	server.exe
Token: SeIncBasePriorityPrivilege	1180	server.exe
Token: 33	1180	server.exe
Token: SeIncBasePriorityPrivilege	1180	server.exe
Token: 33	1180	server.exe
Token: SeIncBasePriorityPrivilege	1180	server.exe
Token: 33	1180	server.exe
Token: SeIncBasePriorityPrivilege	1180	server.exe
Token: 33	1180	server.exe
Token: SeIncBasePriorityPrivilege	1180	server.exe
Token: 33	1180	server.exe
Token: SeIncBasePriorityPrivilege	1180	server.exe
Token: 33	1180	server.exe
Token: SeIncBasePriorityPrivilege	1180	server.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 1180	1232	59ca5f6efd8cf1671b0587c2ad1bb050b5d77a3614998647ae73ee28122ef44a.exe	84
PID 1232 wrote to memory of 1180	1232	59ca5f6efd8cf1671b0587c2ad1bb050b5d77a3614998647ae73ee28122ef44a.exe	84
PID 1180 wrote to memory of 1936	1180	server.exe	85
PID 1180 wrote to memory of 1936	1180	server.exe	85

C:\Users\Admin\AppData\Local\Temp\59ca5f6efd8cf1671b0587c2ad1bb050b5d77a3614998647ae73ee28122ef44a.exe
"C:\Users\Admin\AppData\Local\Temp\59ca5f6efd8cf1671b0587c2ad1bb050b5d77a3614998647ae73ee28122ef44a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1180
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:1936

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
131KB

MD5
bd92816a86e3a7013682af920eb4a20a

SHA1
3672aa86ad0195dfb84d885dc1ab5be8117f2a74

SHA256
59ca5f6efd8cf1671b0587c2ad1bb050b5d77a3614998647ae73ee28122ef44a

SHA512
23f19f09d9ea90bffed7ab849c954e4e6663bfe45e628690bfe541e489fad18105d29adfe24fd6be9f7758af880f6dc4d6c0a8549669a6d2f2a472a07a0d401c

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

Filesize
131KB

MD5
bd92816a86e3a7013682af920eb4a20a

SHA1
3672aa86ad0195dfb84d885dc1ab5be8117f2a74

SHA256
59ca5f6efd8cf1671b0587c2ad1bb050b5d77a3614998647ae73ee28122ef44a

SHA512
23f19f09d9ea90bffed7ab849c954e4e6663bfe45e628690bfe541e489fad18105d29adfe24fd6be9f7758af880f6dc4d6c0a8549669a6d2f2a472a07a0d401c

Download Submit
memory/1180-136-0x000000001B860000-0x000000001C296000-memory.dmp

Filesize
10.2MB

Download
memory/1232-132-0x000000001BC10000-0x000000001C646000-memory.dmp

Filesize
10.2MB

Download