njrat | 56ceb4578f1fdeed73868bba77e46c0bbef65c101530bcef3a9257d15ec0b456

General

Target

41FEAB5AEC2ECE21D9A72911C82AE177.exe
Size

23KB
MD5

41feab5aec2ece21d9a72911c82ae177
SHA1

53ae7e16b5ee073904a2b1f95ac85acbff93c00e
SHA256

56ceb4578f1fdeed73868bba77e46c0bbef65c101530bcef3a9257d15ec0b456
SHA512

cbe373277b85ad46c4fe70f990361a496e5b7152bb2ab7a868f1d37687bfc3cf5421ae894bd697c423da1c3210d412d3fd4c208f294493fb0d4d79e6a347342d

Score

10^/10

njrat victima evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

victima

C2

8.tcp.ngrok.io:16534

Mutex

03ef0a44d2c926e2d1efdd377b33c634

Attributes

reg_key
03ef0a44d2c926e2d1efdd377b33c634
splitter
|'|'|

Signatures

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

Processes:

defender.exe

pid process

1164 defender.exe
Modifies Windows Firewall 1 TTPs
evasion

Modify Existing Service
T1031

pid	process
1164	defender.exe

Drops startup file 2 IoCs

Processes:

defender.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\03ef0a44d2c926e2d1efdd377b33c634.exe	defender.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\03ef0a44d2c926e2d1efdd377b33c634.exe	defender.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

defender.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1669990088-476967504-438132596-1000\Software\Microsoft\Windows\CurrentVersion\Run\03ef0a44d2c926e2d1efdd377b33c634 = "\"C:\\Windows\\defender.exe\" .."	defender.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\03ef0a44d2c926e2d1efdd377b33c634 = "\"C:\\Windows\\defender.exe\" .."	defender.exe

Drops file in Windows directory 1 IoCs

Processes:

41FEAB5AEC2ECE21D9A72911C82AE177.exe

description ioc process

File created C:\Windows\defender.exe 41FEAB5AEC2ECE21D9A72911C82AE177.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File created	C:\Windows\defender.exe	41FEAB5AEC2ECE21D9A72911C82AE177.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

Processes:

defender.exe

description	pid	process
Token: SeDebugPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe
Token: 33	1164	defender.exe
Token: SeIncBasePriorityPrivilege	1164	defender.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

41FEAB5AEC2ECE21D9A72911C82AE177.exedefender.exe

description	pid	process	target process
PID 1648 wrote to memory of 1164	1648	41FEAB5AEC2ECE21D9A72911C82AE177.exe	defender.exe
PID 1648 wrote to memory of 1164	1648	41FEAB5AEC2ECE21D9A72911C82AE177.exe	defender.exe
PID 1648 wrote to memory of 1164	1648	41FEAB5AEC2ECE21D9A72911C82AE177.exe	defender.exe
PID 1648 wrote to memory of 1164	1648	41FEAB5AEC2ECE21D9A72911C82AE177.exe	defender.exe
PID 1164 wrote to memory of 1524	1164	defender.exe	netsh.exe
PID 1164 wrote to memory of 1524	1164	defender.exe	netsh.exe
PID 1164 wrote to memory of 1524	1164	defender.exe	netsh.exe
PID 1164 wrote to memory of 1524	1164	defender.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\41FEAB5AEC2ECE21D9A72911C82AE177.exe
"C:\Users\Admin\AppData\Local\Temp\41FEAB5AEC2ECE21D9A72911C82AE177.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1648

C:\Windows\defender.exe
"C:\Windows\defender.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1164

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Windows\defender.exe" "defender.exe" ENABLE
3⤵
PID:1524

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\defender.exe
MD5
41feab5aec2ece21d9a72911c82ae177

SHA1
53ae7e16b5ee073904a2b1f95ac85acbff93c00e

SHA256
56ceb4578f1fdeed73868bba77e46c0bbef65c101530bcef3a9257d15ec0b456

SHA512
cbe373277b85ad46c4fe70f990361a496e5b7152bb2ab7a868f1d37687bfc3cf5421ae894bd697c423da1c3210d412d3fd4c208f294493fb0d4d79e6a347342d

Download Submit
C:\Windows\defender.exe
MD5
41feab5aec2ece21d9a72911c82ae177

SHA1
53ae7e16b5ee073904a2b1f95ac85acbff93c00e

SHA256
56ceb4578f1fdeed73868bba77e46c0bbef65c101530bcef3a9257d15ec0b456

SHA512
cbe373277b85ad46c4fe70f990361a496e5b7152bb2ab7a868f1d37687bfc3cf5421ae894bd697c423da1c3210d412d3fd4c208f294493fb0d4d79e6a347342d

Download Submit
memory/1164-55-0x0000000000000000-mapping.dmp

Download
memory/1164-59-0x0000000000B60000-0x0000000000B61000-memory.dmp

Filesize
4KB

Download
memory/1524-60-0x0000000000000000-mapping.dmp

Download
memory/1648-53-0x0000000076041000-0x0000000076043000-memory.dmp

Filesize
8KB

Download
memory/1648-54-0x00000000009F0000-0x00000000009F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads