njrat | 6fccf76fe3b419e6da88a6fddf207463355d1ba85a2858c46a11713331c39f5a

General

Target

ab00148c33790d85112a7bc1af206c05.exe
Size

43KB
MD5

ab00148c33790d85112a7bc1af206c05
SHA1

abbfa0d381484c186be0747f3027c7799eaaa7d9
SHA256

6fccf76fe3b419e6da88a6fddf207463355d1ba85a2858c46a11713331c39f5a
SHA512

8a2fe6f9c1b85bc7533253dd085cffd590d38456b92d7d04edcd62b0a5ccf40f3f6f1b078eb2e56d55f079cd2c82e0f27f77075b73aee6c7928be92d563c3a4d

Score

10^/10

njrat topher persistence trojan

Malware Config

Extracted

Family

njrat

Version

Njrat 0.7 Golden By Hassan Amiri

Botnet

topher

C2

savedat.duckdns.org:4782

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|Hassan|

Signatures

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

Processes:

Dllhost.exe

pid process

1608 Dllhost.exe

pid	process
1608	Dllhost.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

Loads dropped DLL 1 IoCs

Processes:

ab00148c33790d85112a7bc1af206c05.exe

pid process

1380 ab00148c33790d85112a7bc1af206c05.exe

pid	process
1380	ab00148c33790d85112a7bc1af206c05.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-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\ProgramData\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\ProgramData\\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
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Dllhost.exe

pid process

1608 Dllhost.exe

pid	process
1608	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

Dllhost.exe

description	pid	process
Token: SeDebugPrivilege	1608	Dllhost.exe
Token: 33	1608	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1608	Dllhost.exe
Token: 33	1608	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1608	Dllhost.exe
Token: 33	1608	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1608	Dllhost.exe
Token: 33	1608	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1608	Dllhost.exe
Token: 33	1608	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1608	Dllhost.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

ab00148c33790d85112a7bc1af206c05.exe

description	pid	process	target process
PID 1380 wrote to memory of 1608	1380	ab00148c33790d85112a7bc1af206c05.exe	Dllhost.exe
PID 1380 wrote to memory of 1608	1380	ab00148c33790d85112a7bc1af206c05.exe	Dllhost.exe
PID 1380 wrote to memory of 1608	1380	ab00148c33790d85112a7bc1af206c05.exe	Dllhost.exe
PID 1380 wrote to memory of 1608	1380	ab00148c33790d85112a7bc1af206c05.exe	Dllhost.exe

C:\Users\Admin\AppData\Local\Temp\ab00148c33790d85112a7bc1af206c05.exe
"C:\Users\Admin\AppData\Local\Temp\ab00148c33790d85112a7bc1af206c05.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1380

C:\ProgramData\Dllhost.exe
"C:\ProgramData\Dllhost.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1608

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

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

Replay Monitor

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Downloads

C:\ProgramData\Dllhost.exe
MD5
ab00148c33790d85112a7bc1af206c05

SHA1
abbfa0d381484c186be0747f3027c7799eaaa7d9

SHA256
6fccf76fe3b419e6da88a6fddf207463355d1ba85a2858c46a11713331c39f5a

SHA512
8a2fe6f9c1b85bc7533253dd085cffd590d38456b92d7d04edcd62b0a5ccf40f3f6f1b078eb2e56d55f079cd2c82e0f27f77075b73aee6c7928be92d563c3a4d

Download Submit
C:\ProgramData\Dllhost.exe
MD5
ab00148c33790d85112a7bc1af206c05

SHA1
abbfa0d381484c186be0747f3027c7799eaaa7d9

SHA256
6fccf76fe3b419e6da88a6fddf207463355d1ba85a2858c46a11713331c39f5a

SHA512
8a2fe6f9c1b85bc7533253dd085cffd590d38456b92d7d04edcd62b0a5ccf40f3f6f1b078eb2e56d55f079cd2c82e0f27f77075b73aee6c7928be92d563c3a4d

Download Submit
\ProgramData\Dllhost.exe
MD5
ab00148c33790d85112a7bc1af206c05

SHA1
abbfa0d381484c186be0747f3027c7799eaaa7d9

SHA256
6fccf76fe3b419e6da88a6fddf207463355d1ba85a2858c46a11713331c39f5a

SHA512
8a2fe6f9c1b85bc7533253dd085cffd590d38456b92d7d04edcd62b0a5ccf40f3f6f1b078eb2e56d55f079cd2c82e0f27f77075b73aee6c7928be92d563c3a4d

Download Submit
memory/1380-53-0x0000000075C11000-0x0000000075C13000-memory.dmp

Filesize
8KB

Download
memory/1380-54-0x0000000000B50000-0x0000000000B51000-memory.dmp

Filesize
4KB

Download
memory/1608-56-0x0000000000000000-mapping.dmp

Download
memory/1608-60-0x0000000002160000-0x0000000002161000-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