njrat | e5a4e8eda9d21d29b21f4d665823cdcbf9fb7004c8a4e6f74df126249b46c67f

General

Target

a872f0414e0834acab687a8beb9b3a6b.exe
Size

43KB
MD5

a872f0414e0834acab687a8beb9b3a6b
SHA1

3c5e60d56a0fe1378453e38ee4be9a589f3f6f83
SHA256

e5a4e8eda9d21d29b21f4d665823cdcbf9fb7004c8a4e6f74df126249b46c67f
SHA512

22c82bfdf3026e000bbbc2601598a55402ddcf73cdee1a36a94b2f2669bb9d2926f9dbb78d2d8a1be2c0b08c86b5085bc8e2971663e69ec8d559caf5088be8db

Score

10^/10

njrat ???persistence suricata trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

???

C2

0.tcp.ngrok.io:15651

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata
Executes dropped EXE 3 IoCs

Processes:

Dllhost.exeServer.exeServer.exe

pid process

780 Dllhost.exe
1708 Server.exe
1484 Server.exe

pid	process
780	Dllhost.exe
1708	Server.exe
1484	Server.exe

Drops startup file 2 IoCs

Processes:

Dllhost.exe

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Dllhost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-941723256-3451054534-3089625102-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .."	Dllhost.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

3480 schtasks.exe
Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

a872f0414e0834acab687a8beb9b3a6b.exeDllhost.exe

pid process

2680 a872f0414e0834acab687a8beb9b3a6b.exe
780 Dllhost.exe

pid	process
3480	schtasks.exe

pid	process
2680	a872f0414e0834acab687a8beb9b3a6b.exe
780	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

Processes:

Dllhost.exe

description	pid	process
Token: SeDebugPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe
Token: 33	780	Dllhost.exe
Token: SeIncBasePriorityPrivilege	780	Dllhost.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

a872f0414e0834acab687a8beb9b3a6b.exeDllhost.exe

description	pid	process	target process
PID 2680 wrote to memory of 780	2680	a872f0414e0834acab687a8beb9b3a6b.exe	Dllhost.exe
PID 2680 wrote to memory of 780	2680	a872f0414e0834acab687a8beb9b3a6b.exe	Dllhost.exe
PID 2680 wrote to memory of 780	2680	a872f0414e0834acab687a8beb9b3a6b.exe	Dllhost.exe
PID 780 wrote to memory of 3480	780	Dllhost.exe	schtasks.exe
PID 780 wrote to memory of 3480	780	Dllhost.exe	schtasks.exe
PID 780 wrote to memory of 3480	780	Dllhost.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\a872f0414e0834acab687a8beb9b3a6b.exe
"C:\Users\Admin\AppData\Local\Temp\a872f0414e0834acab687a8beb9b3a6b.exe"
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2680

C:\Users\Admin\AppData\Roaming\Dllhost.exe
"C:\Users\Admin\AppData\Roaming\Dllhost.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:780

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
3⤵
- Creates scheduled task(s)
PID:3480

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:1708

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:1484

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Server.exe.log
MD5
0de4a673c46d192f575c41e7c80ffc3e

SHA1
7a1da7e8ec2efd904ecb237ebedd4d7a3ee826f1

SHA256
c18d0ff8e7b83a8623a8515d91d65f68deef6da9f68d84886864177f45acbf65

SHA512
b505619848b2f6038e68a2d7baaa4cf314d39023a5b7a32001262ecda03a905986ac8a45a249745e29637b0acfaba1ae06bfaecc678283a808e6f9f4b455e209

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
MD5
a872f0414e0834acab687a8beb9b3a6b

SHA1
3c5e60d56a0fe1378453e38ee4be9a589f3f6f83

SHA256
e5a4e8eda9d21d29b21f4d665823cdcbf9fb7004c8a4e6f74df126249b46c67f

SHA512
22c82bfdf3026e000bbbc2601598a55402ddcf73cdee1a36a94b2f2669bb9d2926f9dbb78d2d8a1be2c0b08c86b5085bc8e2971663e69ec8d559caf5088be8db

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
MD5
a872f0414e0834acab687a8beb9b3a6b

SHA1
3c5e60d56a0fe1378453e38ee4be9a589f3f6f83

SHA256
e5a4e8eda9d21d29b21f4d665823cdcbf9fb7004c8a4e6f74df126249b46c67f

SHA512
22c82bfdf3026e000bbbc2601598a55402ddcf73cdee1a36a94b2f2669bb9d2926f9dbb78d2d8a1be2c0b08c86b5085bc8e2971663e69ec8d559caf5088be8db

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
MD5
a872f0414e0834acab687a8beb9b3a6b

SHA1
3c5e60d56a0fe1378453e38ee4be9a589f3f6f83

SHA256
e5a4e8eda9d21d29b21f4d665823cdcbf9fb7004c8a4e6f74df126249b46c67f

SHA512
22c82bfdf3026e000bbbc2601598a55402ddcf73cdee1a36a94b2f2669bb9d2926f9dbb78d2d8a1be2c0b08c86b5085bc8e2971663e69ec8d559caf5088be8db

Download Submit
C:\Users\Admin\AppData\Roaming\Dllhost.exe
MD5
a872f0414e0834acab687a8beb9b3a6b

SHA1
3c5e60d56a0fe1378453e38ee4be9a589f3f6f83

SHA256
e5a4e8eda9d21d29b21f4d665823cdcbf9fb7004c8a4e6f74df126249b46c67f

SHA512
22c82bfdf3026e000bbbc2601598a55402ddcf73cdee1a36a94b2f2669bb9d2926f9dbb78d2d8a1be2c0b08c86b5085bc8e2971663e69ec8d559caf5088be8db

Download Submit
C:\Users\Admin\AppData\Roaming\Dllhost.exe
MD5
a872f0414e0834acab687a8beb9b3a6b

SHA1
3c5e60d56a0fe1378453e38ee4be9a589f3f6f83

SHA256
e5a4e8eda9d21d29b21f4d665823cdcbf9fb7004c8a4e6f74df126249b46c67f

SHA512
22c82bfdf3026e000bbbc2601598a55402ddcf73cdee1a36a94b2f2669bb9d2926f9dbb78d2d8a1be2c0b08c86b5085bc8e2971663e69ec8d559caf5088be8db

Download Submit
memory/780-133-0x00000000068B0000-0x00000000068B1000-memory.dmp

Filesize
4KB

Download
memory/780-121-0x0000000000000000-mapping.dmp

Download
memory/780-129-0x0000000002E60000-0x0000000002E61000-memory.dmp

Filesize
4KB

Download
memory/780-131-0x0000000005390000-0x0000000005391000-memory.dmp

Filesize
4KB

Download
memory/780-132-0x0000000005950000-0x0000000005951000-memory.dmp

Filesize
4KB

Download
memory/1484-149-0x0000000005870000-0x0000000005871000-memory.dmp

Filesize
4KB

Download
memory/1708-141-0x0000000002D40000-0x0000000002D41000-memory.dmp

Filesize
4KB

Download
memory/2680-115-0x0000000000130000-0x0000000000131000-memory.dmp

Filesize
4KB

Download
memory/2680-120-0x00000000048C0000-0x000000000495C000-memory.dmp

Filesize
624KB

Download
memory/2680-119-0x0000000004D80000-0x0000000004D81000-memory.dmp

Filesize
4KB

Download
memory/2680-118-0x0000000005190000-0x0000000005191000-memory.dmp

Filesize
4KB

Download
memory/2680-117-0x00000000049F0000-0x00000000049F1000-memory.dmp

Filesize
4KB

Download
memory/3480-130-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads