njrat | aa565d4f97c0888211383260a289dc1f14d73ed8926dd7ae876c2eb4a9d4ac4b

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 12:18

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General

Target

JaffaCakes118_c7f335d3bc251af6b5a899fd7b1e436b.exe
Size

156KB
MD5

c7f335d3bc251af6b5a899fd7b1e436b
SHA1

0cd0ca9b5919d4d67f3204d15a717d91b1bf80d0
SHA256

aa565d4f97c0888211383260a289dc1f14d73ed8926dd7ae876c2eb4a9d4ac4b
SHA512

f9547507389f6db3c8b4378574ca388a21a38474c0dcacd62e96454169d58c112af84d1d0f0cab849c2f7c8c0ba77ba81960ff192c6563b11cbc9ae5980756c5
SSDEEP

3072:XCtB0x06xmjs7e2QTeJ6VF+Ycp4wEkkD3rc4naoAkNFM3odi0GA:Sj

Score

10^/10

njrat vitima discovery evasion persistence privilege_escalation trojan

Malware Config

Extracted

Family

njrat

Version

0.6.4

Botnet

Vitima

downhacking.duckdns.org:1177

Mutex

0d39e4190d68272f174cf71722404520

Attributes

reg_key
0d39e4190d68272f174cf71722404520
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
2524	netsh.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0d39e4190d68272f174cf71722404520.exe	taskhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\0d39e4190d68272f174cf71722404520.exe	taskhost.exe

Executes dropped EXE 1 IoCs

pid	Process
2288	taskhost.exe

Loads dropped DLL 1 IoCs

pid	Process
2372	JaffaCakes118_c7f335d3bc251af6b5a899fd7b1e436b.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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\0d39e4190d68272f174cf71722404520 = "\"C:\\Users\\Admin\\taskhost.exe\" .."	taskhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\0d39e4190d68272f174cf71722404520 = "\"C:\\Users\\Admin\\taskhost.exe\" .."	taskhost.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\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_c7f335d3bc251af6b5a899fd7b1e436b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe
2288	taskhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2288	taskhost.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 2288	2372	JaffaCakes118_c7f335d3bc251af6b5a899fd7b1e436b.exe	31
PID 2372 wrote to memory of 2288	2372	JaffaCakes118_c7f335d3bc251af6b5a899fd7b1e436b.exe	31
PID 2372 wrote to memory of 2288	2372	JaffaCakes118_c7f335d3bc251af6b5a899fd7b1e436b.exe	31
PID 2372 wrote to memory of 2288	2372	JaffaCakes118_c7f335d3bc251af6b5a899fd7b1e436b.exe	31
PID 2288 wrote to memory of 2524	2288	taskhost.exe	32
PID 2288 wrote to memory of 2524	2288	taskhost.exe	32
PID 2288 wrote to memory of 2524	2288	taskhost.exe	32
PID 2288 wrote to memory of 2524	2288	taskhost.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7f335d3bc251af6b5a899fd7b1e436b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c7f335d3bc251af6b5a899fd7b1e436b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Users\Admin\taskhost.exe
  "C:\Users\Admin\taskhost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2288
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\taskhost.exe" "taskhost.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2524

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\taskhost.exe

Filesize
156KB

MD5
c7f335d3bc251af6b5a899fd7b1e436b

SHA1
0cd0ca9b5919d4d67f3204d15a717d91b1bf80d0

SHA256
aa565d4f97c0888211383260a289dc1f14d73ed8926dd7ae876c2eb4a9d4ac4b

SHA512
f9547507389f6db3c8b4378574ca388a21a38474c0dcacd62e96454169d58c112af84d1d0f0cab849c2f7c8c0ba77ba81960ff192c6563b11cbc9ae5980756c5

Download Submit
memory/2288-10-0x0000000001220000-0x000000000124E000-memory.dmp

Filesize
184KB

Download
memory/2288-11-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2288-13-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2288-14-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2288-15-0x00000000748C0000-0x0000000074FAE000-memory.dmp

Filesize
6.9MB

Download
memory/2372-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

Filesize
4KB

Download
memory/2372-1-0x00000000013B0000-0x00000000013DE000-memory.dmp

Filesize
184KB

Download
memory/2372-2-0x0000000000200000-0x000000000020E000-memory.dmp

Filesize
56KB

Download