njrat | 6aed6fe05d534885dc8983af53044a1a1f0a972f4112499fe21c095877b67242

General

Target

6aed6fe05d534885dc8983af53044a1a1f0a972f4112499fe21c095877b67242.exe
Size

194KB
MD5

68436a755999e7fb559ed5845d25dcf0
SHA1

3a3989a6c78578f4f2abf5b5ad8e22df5ddf1eb9
SHA256

6aed6fe05d534885dc8983af53044a1a1f0a972f4112499fe21c095877b67242
SHA512

843c1946273bbaa9e927aa28324396a432edc998073cf1526f96f29b35ca60ff1a23fd8784a75a2cc3149e1cad5e8e1ccc54d7486b2557fe7bf7db26d85a7a28
SSDEEP

3072:ZIsuSu37ds9ciftBwTxYJS4r97byrPR+rsJtot/dKAj5gKZaR2q:ZIsuZjiPwgS4QrPEsz0dX1ggI

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

starmimo7.ddns.net:6667

Mutex

ba7d1a7e166b36f0f2566066276e20ce

Attributes

reg_key
ba7d1a7e166b36f0f2566066276e20ce
splitter
|'|'|

Signatures

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

Processes:

twunk.exe

pid process

1748 twunk.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1648 netsh.exe

pid	process
1748	twunk.exe

pid	process
1648	netsh.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

twunk.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ba7d1a7e166b36f0f2566066276e20ce = "\"C:\\ProgramData\\twunk.exe\" .."	twunk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ba7d1a7e166b36f0f2566066276e20ce = "\"C:\\ProgramData\\twunk.exe\" .."	twunk.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 19 IoCs

Processes:

twunk.exe

description	pid	process
Token: SeDebugPrivilege	1748	twunk.exe
Token: 33	1748	twunk.exe
Token: SeIncBasePriorityPrivilege	1748	twunk.exe
Token: 33	1748	twunk.exe
Token: SeIncBasePriorityPrivilege	1748	twunk.exe
Token: 33	1748	twunk.exe
Token: SeIncBasePriorityPrivilege	1748	twunk.exe
Token: 33	1748	twunk.exe
Token: SeIncBasePriorityPrivilege	1748	twunk.exe
Token: 33	1748	twunk.exe
Token: SeIncBasePriorityPrivilege	1748	twunk.exe
Token: 33	1748	twunk.exe
Token: SeIncBasePriorityPrivilege	1748	twunk.exe
Token: 33	1748	twunk.exe
Token: SeIncBasePriorityPrivilege	1748	twunk.exe
Token: 33	1748	twunk.exe
Token: SeIncBasePriorityPrivilege	1748	twunk.exe
Token: 33	1748	twunk.exe
Token: SeIncBasePriorityPrivilege	1748	twunk.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

6aed6fe05d534885dc8983af53044a1a1f0a972f4112499fe21c095877b67242.exetwunk.exe

description	pid	process	target process
PID 1468 wrote to memory of 1748	1468	6aed6fe05d534885dc8983af53044a1a1f0a972f4112499fe21c095877b67242.exe	twunk.exe
PID 1468 wrote to memory of 1748	1468	6aed6fe05d534885dc8983af53044a1a1f0a972f4112499fe21c095877b67242.exe	twunk.exe
PID 1468 wrote to memory of 1748	1468	6aed6fe05d534885dc8983af53044a1a1f0a972f4112499fe21c095877b67242.exe	twunk.exe
PID 1748 wrote to memory of 1648	1748	twunk.exe	netsh.exe
PID 1748 wrote to memory of 1648	1748	twunk.exe	netsh.exe
PID 1748 wrote to memory of 1648	1748	twunk.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\6aed6fe05d534885dc8983af53044a1a1f0a972f4112499fe21c095877b67242.exe
"C:\Users\Admin\AppData\Local\Temp\6aed6fe05d534885dc8983af53044a1a1f0a972f4112499fe21c095877b67242.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1468

C:\ProgramData\twunk.exe
"C:\ProgramData\twunk.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1748

C:\Windows\system32\netsh.exe
netsh firewall add allowedprogram "C:\ProgramData\twunk.exe" "twunk.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1648

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:\ProgramData\twunk.exe
Filesize
194KB

MD5
68436a755999e7fb559ed5845d25dcf0

SHA1
3a3989a6c78578f4f2abf5b5ad8e22df5ddf1eb9

SHA256
6aed6fe05d534885dc8983af53044a1a1f0a972f4112499fe21c095877b67242

SHA512
843c1946273bbaa9e927aa28324396a432edc998073cf1526f96f29b35ca60ff1a23fd8784a75a2cc3149e1cad5e8e1ccc54d7486b2557fe7bf7db26d85a7a28

Download Submit
C:\ProgramData\twunk.exe
Filesize
194KB

MD5
68436a755999e7fb559ed5845d25dcf0

SHA1
3a3989a6c78578f4f2abf5b5ad8e22df5ddf1eb9

SHA256
6aed6fe05d534885dc8983af53044a1a1f0a972f4112499fe21c095877b67242

SHA512
843c1946273bbaa9e927aa28324396a432edc998073cf1526f96f29b35ca60ff1a23fd8784a75a2cc3149e1cad5e8e1ccc54d7486b2557fe7bf7db26d85a7a28

Download Submit
memory/1468-54-0x0000000000C50000-0x0000000000C88000-memory.dmp

Filesize
224KB

Download
memory/1468-55-0x00000000002D0000-0x00000000002DE000-memory.dmp

Filesize
56KB

Download
memory/1468-56-0x00000000002E0000-0x00000000002E8000-memory.dmp

Filesize
32KB

Download
memory/1468-57-0x00000000002F0000-0x00000000002FA000-memory.dmp

Filesize
40KB

Download
memory/1468-58-0x000007FEFBCB1000-0x000007FEFBCB3000-memory.dmp

Filesize
8KB

Download
memory/1648-63-0x0000000000000000-mapping.dmp

Download
memory/1748-59-0x0000000000000000-mapping.dmp

Download
memory/1748-62-0x0000000000DC0000-0x0000000000DF8000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads