njrat | 78393fd5184de1db0bfadf7d9f345df7eeebe0249a2c57fe315812331dc76fbe

General

Target

KeyOneA.exe
Size

82KB
MD5

d8191eee2d99a00cb664d100ffc73b9c
SHA1

0063ae1d0f02d444c69a358c925e39bd542c2ee7
SHA256

78393fd5184de1db0bfadf7d9f345df7eeebe0249a2c57fe315812331dc76fbe
SHA512

e753246baebb0d57b279b0c93d06769e3c50fd49ef3e447a6278360282e2e3c884f3a97bb7cf549292c79fee99834b3d5fda8ca0ad8ed470b2255a0ce2d1f60f
SSDEEP

768:fE0DwODZX8f4QsFQcrM+rMRa8Nu3HtgC1GdeVtCRGYwxYIoE38KpVTdHBMNHMLa+:fhTZMAQsOv+gRJNc4/

Score

10^/10

njrat haxpc evasion persistence trojan

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HAXPC

C2

enderop44-36084.portmap.host:36084

Mutex

448265b61222a7ad1d7b5df51a023e9c

Attributes

reg_key
448265b61222a7ad1d7b5df51a023e9c
splitter
|'|'|

Signatures

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

Processes:

DriveHost.exe

pid process

4068 DriveHost.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

4104 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:

KeyOneA.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation KeyOneA.exe

pid	process
4104	netsh.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	KeyOneA.exe

Drops startup file 2 IoCs

Processes:

DriveHost.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\448265b61222a7ad1d7b5df51a023e9c.exe	DriveHost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\448265b61222a7ad1d7b5df51a023e9c.exe	DriveHost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

DriveHost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\448265b61222a7ad1d7b5df51a023e9c = "\"C:\\Windows\\DriveHost.exe\" .."	DriveHost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\448265b61222a7ad1d7b5df51a023e9c = "\"C:\\Windows\\DriveHost.exe\" .."	DriveHost.exe

Drops file in Windows directory 3 IoCs

Processes:

KeyOneA.exeDriveHost.exe

description	ioc	process
File created	C:\Windows\DriveHost.exe	KeyOneA.exe
File opened for modification	C:\Windows\DriveHost.exe	KeyOneA.exe
File opened for modification	C:\Windows\DriveHost.exe	DriveHost.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: EnumeratesProcesses 64 IoCs

Processes:

DriveHost.exe

pid	process
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe
4068	DriveHost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

DriveHost.exe

pid process

4068 DriveHost.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

Processes:

DriveHost.exe

description	pid	process
Token: SeDebugPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe
Token: 33	4068	DriveHost.exe
Token: SeIncBasePriorityPrivilege	4068	DriveHost.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

KeyOneA.exeDriveHost.exe

description	pid	process	target process
PID 4992 wrote to memory of 4068	4992	KeyOneA.exe	DriveHost.exe
PID 4992 wrote to memory of 4068	4992	KeyOneA.exe	DriveHost.exe
PID 4992 wrote to memory of 4068	4992	KeyOneA.exe	DriveHost.exe
PID 4068 wrote to memory of 4104	4068	DriveHost.exe	netsh.exe
PID 4068 wrote to memory of 4104	4068	DriveHost.exe	netsh.exe
PID 4068 wrote to memory of 4104	4068	DriveHost.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\KeyOneA.exe
"C:\Users\Admin\AppData\Local\Temp\KeyOneA.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4992
- C:\Windows\DriveHost.exe
  "C:\Windows\DriveHost.exe"
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4068
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\DriveHost.exe" "DriveHost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    PID:4104

Network

MITRE ATT&CK Enterprise 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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\DriveHost.exe

Filesize
82KB

MD5
d8191eee2d99a00cb664d100ffc73b9c

SHA1
0063ae1d0f02d444c69a358c925e39bd542c2ee7

SHA256
78393fd5184de1db0bfadf7d9f345df7eeebe0249a2c57fe315812331dc76fbe

SHA512
e753246baebb0d57b279b0c93d06769e3c50fd49ef3e447a6278360282e2e3c884f3a97bb7cf549292c79fee99834b3d5fda8ca0ad8ed470b2255a0ce2d1f60f

Download Submit
C:\Windows\DriveHost.exe

Filesize
82KB

MD5
d8191eee2d99a00cb664d100ffc73b9c

SHA1
0063ae1d0f02d444c69a358c925e39bd542c2ee7

SHA256
78393fd5184de1db0bfadf7d9f345df7eeebe0249a2c57fe315812331dc76fbe

SHA512
e753246baebb0d57b279b0c93d06769e3c50fd49ef3e447a6278360282e2e3c884f3a97bb7cf549292c79fee99834b3d5fda8ca0ad8ed470b2255a0ce2d1f60f

Download Submit
memory/4068-133-0x0000000000000000-mapping.dmp

Download
memory/4068-137-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4068-139-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4104-138-0x0000000000000000-mapping.dmp

Download
memory/4992-132-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download
memory/4992-136-0x0000000074BF0000-0x00000000751A1000-memory.dmp

Filesize
5.7MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads