njrat | 29f4a7219a671bac2337402c9c5fd4cf1789ac818c321754b8824b486ffb717d

General

Target

JaffaCakes118_99b2f7822d52908284c83b114dc19ede.exe
Size

33KB
MD5

99b2f7822d52908284c83b114dc19ede
SHA1

9670074d06ceab739d9bd88b19dab68ac69ae637
SHA256

29f4a7219a671bac2337402c9c5fd4cf1789ac818c321754b8824b486ffb717d
SHA512

4fd010f336ffaacae1ea615ca62e3e285d3150981330f8b4ae3617478c3c886386d6544bdcced98851fd94231d1da8b40c584090246a9cc533ebcc2e641550c6
SSDEEP

768:VvTUC66ha3MI3IOTTZs0y3MbKRSJebgCkjZtNM7U:tUC6v3G02M2gJYVkjpSU

Score

10^/10

njrat windows evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

Windows

C2

hackedbyiris.ddns.net:19132

Mutex

Windows Update

Attributes

reg_key
Windows Update
splitter
|'|'|

Signatures

Njrat family
njrat
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
4240	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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	JaffaCakes118_99b2f7822d52908284c83b114dc19ede.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
3032	svchost.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\svchost.exe\" .."	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Windows\\svchost.exe\" .."	svchost.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	JaffaCakes118_99b2f7822d52908284c83b114dc19ede.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 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe
Token: 33	3032	svchost.exe
Token: SeIncBasePriorityPrivilege	3032	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 3032	212	JaffaCakes118_99b2f7822d52908284c83b114dc19ede.exe	84
PID 212 wrote to memory of 3032	212	JaffaCakes118_99b2f7822d52908284c83b114dc19ede.exe	84
PID 3032 wrote to memory of 4240	3032	svchost.exe	95
PID 3032 wrote to memory of 4240	3032	svchost.exe	95

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_99b2f7822d52908284c83b114dc19ede.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_99b2f7822d52908284c83b114dc19ede.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:212
- C:\Windows\svchost.exe
  "C:\Windows\svchost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3032
- - C:\Windows\SYSTEM32\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\svchost.exe" "svchost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:4240

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:\Windows\svchost.exe

Filesize
33KB

MD5
99b2f7822d52908284c83b114dc19ede

SHA1
9670074d06ceab739d9bd88b19dab68ac69ae637

SHA256
29f4a7219a671bac2337402c9c5fd4cf1789ac818c321754b8824b486ffb717d

SHA512
4fd010f336ffaacae1ea615ca62e3e285d3150981330f8b4ae3617478c3c886386d6544bdcced98851fd94231d1da8b40c584090246a9cc533ebcc2e641550c6

Download Submit
memory/212-3-0x0000000001560000-0x0000000001576000-memory.dmp

Filesize
88KB

Download
memory/212-2-0x00007FFD9D9E0000-0x00007FFD9E381000-memory.dmp

Filesize
9.6MB

Download
memory/212-0-0x00007FFD9DC95000-0x00007FFD9DC96000-memory.dmp

Filesize
4KB

Download
memory/212-4-0x000000001C520000-0x000000001C5C6000-memory.dmp

Filesize
664KB

Download
memory/212-5-0x00007FFD9D9E0000-0x00007FFD9E381000-memory.dmp

Filesize
9.6MB

Download
memory/212-1-0x000000001C050000-0x000000001C51E000-memory.dmp

Filesize
4.8MB

Download
memory/212-18-0x00007FFD9D9E0000-0x00007FFD9E381000-memory.dmp

Filesize
9.6MB

Download
memory/3032-16-0x00007FFD9D9E0000-0x00007FFD9E381000-memory.dmp

Filesize
9.6MB

Download
memory/3032-17-0x00007FFD9D9E0000-0x00007FFD9E381000-memory.dmp

Filesize
9.6MB

Download
memory/3032-15-0x00000000033C0000-0x00000000033D6000-memory.dmp

Filesize
88KB

Download
memory/3032-20-0x000000001E2A0000-0x000000001E33C000-memory.dmp

Filesize
624KB

Download
memory/3032-21-0x00000000033D0000-0x00000000033D8000-memory.dmp

Filesize
32KB

Download
memory/3032-22-0x00007FFD9D9E0000-0x00007FFD9E381000-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