njrat | 5457dd383ee30081111dac45f5701512a5496fcdaef3e0e63caac90598a7ef7b

General

Target

5457dd383ee30081111dac45f5701512a5496fcdaef3e0e63caac90598a7ef7bN.exe
Size

87KB
MD5

670c8d22e8634e5ecc068bcc602d2670
SHA1

3d0969a03dcf424aa880202721dfb4dd32c0f06b
SHA256

5457dd383ee30081111dac45f5701512a5496fcdaef3e0e63caac90598a7ef7b
SHA512

49e683290adac6f74ebec720e823ced2f9b2c6d20151389ffeb4337c6a258d15c213f1bf97cac0b2048fc3b90aeca1820e9c7a3b139e8a8e4852ac65011abffb
SSDEEP

1536:FrbII78KHCbUv4rFjxJOEGJs2A1LEwgnY6ko:FrbIE8KibUv4rxxJemhWbko

Score

10^/10

njrat mohib evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

mohib

C2

172.0.0.1:5552

Mutex

17bece55e4f05b715c44e4118c9b222e

Attributes

reg_key
17bece55e4f05b715c44e4118c9b222e
splitter
|'|'|

Signatures

njRAT/Bladabindi
Widely used RAT written in .NET.
trojan njrat

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1684	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	5457dd383ee30081111dac45f5701512a5496fcdaef3e0e63caac90598a7ef7bN.exe

Executes dropped EXE 1 IoCs

pid	Process
4540	explorer.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\17bece55e4f05b715c44e4118c9b222e = "\"C:\\Users\\Admin\\AppData\\Roaming\\explorer.exe\" .."	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\17bece55e4f05b715c44e4118c9b222e = "\"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

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Suspicious use of AdjustPrivilegeToken 27 IoCs

description	pid	Process
Token: SeDebugPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe
Token: 33	4540	explorer.exe
Token: SeIncBasePriorityPrivilege	4540	explorer.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4112 wrote to memory of 4540	4112	5457dd383ee30081111dac45f5701512a5496fcdaef3e0e63caac90598a7ef7bN.exe	90
PID 4112 wrote to memory of 4540	4112	5457dd383ee30081111dac45f5701512a5496fcdaef3e0e63caac90598a7ef7bN.exe	90
PID 4540 wrote to memory of 1684	4540	explorer.exe	91
PID 4540 wrote to memory of 1684	4540	explorer.exe	91

C:\Users\Admin\AppData\Local\Temp\5457dd383ee30081111dac45f5701512a5496fcdaef3e0e63caac90598a7ef7bN.exe
"C:\Users\Admin\AppData\Local\Temp\5457dd383ee30081111dac45f5701512a5496fcdaef3e0e63caac90598a7ef7bN.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4112
- C:\Users\Admin\AppData\Roaming\explorer.exe
  "C:\Users\Admin\AppData\Roaming\explorer.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4540
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\explorer.exe" "explorer.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:1684

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4380,i,11251706013556949551,5157034131170452377,262144 --variations-seed-version --mojo-platform-channel-handle=4188 /prefetch:8
1⤵
PID:4420

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\explorer.exe

Filesize
87KB

MD5
670c8d22e8634e5ecc068bcc602d2670

SHA1
3d0969a03dcf424aa880202721dfb4dd32c0f06b

SHA256
5457dd383ee30081111dac45f5701512a5496fcdaef3e0e63caac90598a7ef7b

SHA512
49e683290adac6f74ebec720e823ced2f9b2c6d20151389ffeb4337c6a258d15c213f1bf97cac0b2048fc3b90aeca1820e9c7a3b139e8a8e4852ac65011abffb

Download Submit
memory/4112-2-0x000000001B020000-0x000000001B02C000-memory.dmp

Filesize
48KB

Download
memory/4112-3-0x000000001B0E0000-0x000000001B186000-memory.dmp

Filesize
664KB

Download
memory/4112-0-0x00007FFD3CAB5000-0x00007FFD3CAB6000-memory.dmp

Filesize
4KB

Download
memory/4112-4-0x00007FFD3C800000-0x00007FFD3D1A1000-memory.dmp

Filesize
9.6MB

Download
memory/4112-5-0x000000001B660000-0x000000001BB2E000-memory.dmp

Filesize
4.8MB

Download
memory/4112-1-0x00007FFD3C800000-0x00007FFD3D1A1000-memory.dmp

Filesize
9.6MB

Download
memory/4112-19-0x00007FFD3C800000-0x00007FFD3D1A1000-memory.dmp

Filesize
9.6MB

Download
memory/4540-18-0x00007FFD3C800000-0x00007FFD3D1A1000-memory.dmp

Filesize
9.6MB

Download
memory/4540-20-0x00007FFD3C800000-0x00007FFD3D1A1000-memory.dmp

Filesize
9.6MB

Download
memory/4540-21-0x000000001BE90000-0x000000001BF2C000-memory.dmp

Filesize
624KB

Download
memory/4540-22-0x0000000000AF0000-0x0000000000AF8000-memory.dmp

Filesize
32KB

Download
memory/4540-23-0x00007FFD3C800000-0x00007FFD3D1A1000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads