njrat | 2b8acd41c61581c4a77c399cf5fe9ba7104cadd2f8cdc6a331536b618b21cbf3

General

Target

62457e5d7d72b9d2a3dc94404023b8e8.exe
Size

33KB
MD5

62457e5d7d72b9d2a3dc94404023b8e8
SHA1

a0fd127f66696531e9e1fc59d4d8c88c86d14e02
SHA256

2b8acd41c61581c4a77c399cf5fe9ba7104cadd2f8cdc6a331536b618b21cbf3
SHA512

7a58ae906ec1b7375e14aa0af8c0e1d976b2ee1303e0e7e0f2728152ade4be6b6dbdb2db32137c142d0892b3616689ab31c96a721fb89ff49d6178ba854ecb7b
SSDEEP

768:VvTJHptt6VwxbpCrFJyrZXtFS3ypqCFLrv:t1pKabqFJyhfS3cqCFH

Score

10^/10

njrat hacked evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

girafa2002otaku.ddns.net:1177

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Windows Service
T1543.003

Processes:

netsh.exe

pid process

4052 netsh.exe

pid	process
4052	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

Processes:

62457e5d7d72b9d2a3dc94404023b8e8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\Control Panel\International\Geo\Nation	62457e5d7d72b9d2a3dc94404023b8e8.exe

Drops startup file 2 IoCs

Processes:

explorer.exe

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

Executes dropped EXE 1 IoCs

Processes:

explorer.exe

pid process

1928 explorer.exe

pid	process
1928	explorer.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1815711207-1844170477-3539718864-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\explorer.exe\" .."	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\explorer.exe\" .."	explorer.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 33 IoCs

Processes:

explorer.exe

description	pid	process
Token: SeDebugPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe
Token: 33	1928	explorer.exe
Token: SeIncBasePriorityPrivilege	1928	explorer.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

62457e5d7d72b9d2a3dc94404023b8e8.exeexplorer.exe

description	pid	process	target process
PID 1796 wrote to memory of 1928	1796	62457e5d7d72b9d2a3dc94404023b8e8.exe	explorer.exe
PID 1796 wrote to memory of 1928	1796	62457e5d7d72b9d2a3dc94404023b8e8.exe	explorer.exe
PID 1928 wrote to memory of 4052	1928	explorer.exe	netsh.exe
PID 1928 wrote to memory of 4052	1928	explorer.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\62457e5d7d72b9d2a3dc94404023b8e8.exe
"C:\Users\Admin\AppData\Local\Temp\62457e5d7d72b9d2a3dc94404023b8e8.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1796

C:\Users\Admin\AppData\Roaming\explorer.exe
"C:\Users\Admin\AppData\Roaming\explorer.exe"
2⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1928

C:\Windows\SYSTEM32\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\explorer.exe" "explorer.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:4052

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\explorer.exe
Filesize
33KB

MD5
62457e5d7d72b9d2a3dc94404023b8e8

SHA1
a0fd127f66696531e9e1fc59d4d8c88c86d14e02

SHA256
2b8acd41c61581c4a77c399cf5fe9ba7104cadd2f8cdc6a331536b618b21cbf3

SHA512
7a58ae906ec1b7375e14aa0af8c0e1d976b2ee1303e0e7e0f2728152ade4be6b6dbdb2db32137c142d0892b3616689ab31c96a721fb89ff49d6178ba854ecb7b

Download Submit
memory/1796-0-0x00007FFC28600000-0x00007FFC28FA1000-memory.dmp

Filesize
9.6MB

Download
memory/1796-1-0x00007FFC28600000-0x00007FFC28FA1000-memory.dmp

Filesize
9.6MB

Download
memory/1796-2-0x00000000012D0000-0x00000000012E0000-memory.dmp

Filesize
64KB

Download
memory/1796-3-0x000000001BB70000-0x000000001C03E000-memory.dmp

Filesize
4.8MB

Download
memory/1796-4-0x0000000001140000-0x0000000001156000-memory.dmp

Filesize
88KB

Download
memory/1796-5-0x000000001C100000-0x000000001C1A6000-memory.dmp

Filesize
664KB

Download
memory/1796-15-0x00007FFC28600000-0x00007FFC28FA1000-memory.dmp

Filesize
9.6MB

Download
memory/1928-16-0x00007FFC28600000-0x00007FFC28FA1000-memory.dmp

Filesize
9.6MB

Download
memory/1928-17-0x0000000000870000-0x0000000000880000-memory.dmp

Filesize
64KB

Download
memory/1928-18-0x000000001AF80000-0x000000001AF96000-memory.dmp

Filesize
88KB

Download
memory/1928-19-0x00007FFC28600000-0x00007FFC28FA1000-memory.dmp

Filesize
9.6MB

Download
memory/1928-21-0x000000001BD60000-0x000000001BDFC000-memory.dmp

Filesize
624KB

Download
memory/1928-22-0x000000001AFA0000-0x000000001AFA8000-memory.dmp

Filesize
32KB

Download
memory/1928-23-0x0000000000870000-0x0000000000880000-memory.dmp

Filesize
64KB

Download
memory/1928-24-0x00007FFC28600000-0x00007FFC28FA1000-memory.dmp

Filesize
9.6MB

Download
memory/1928-25-0x0000000000870000-0x0000000000880000-memory.dmp

Filesize
64KB

Download
memory/1928-26-0x0000000000870000-0x0000000000880000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads