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Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
04/01/2025, 03:52
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_777676310c24701745eafe775dfba946.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
JaffaCakes118_777676310c24701745eafe775dfba946.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_777676310c24701745eafe775dfba946.exe
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Size
24KB
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MD5
777676310c24701745eafe775dfba946
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SHA1
d7f8d08ddec2d0bb383e18fcc7644f2a851ac5a4
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SHA256
f30ea4f9504e4541a9fc609e7bb5283b8573adc002beac7c93b3d58d40896e2c
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SHA512
ee127c8764b33d21064433b0cd306e6c7f1e0d8e6b27b780387a8c4ed8687744e4b21f12706d563d55652cb56bea1737e5f7e1d4ead2019516f2de8c665a910b
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SSDEEP
384:oz/fEn+pvhlY15Mkatlxrgzr6G6ukCZCKp6SpaZAlt4bMc46x1:8/MnoYYniz76pCZCKkgZtML
Malware Config
Extracted
njrat
0.7d
cstrike
confirmation.myvnc.com:5552
ab890c57cf665b000366dd0ec25c1186
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reg_key
ab890c57cf665b000366dd0ec25c1186
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splitter
|'|'|
Signatures
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Njrat family
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2088 netsh.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation JaffaCakes118_777676310c24701745eafe775dfba946.exe -
Executes dropped EXE 1 IoCs
pid Process 3956 system.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ab890c57cf665b000366dd0ec25c1186 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .." system.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ab890c57cf665b000366dd0ec25c1186 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe\" .." system.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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.
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 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe Token: 33 3956 system.exe Token: SeIncBasePriorityPrivilege 3956 system.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3940 wrote to memory of 3956 3940 JaffaCakes118_777676310c24701745eafe775dfba946.exe 84 PID 3940 wrote to memory of 3956 3940 JaffaCakes118_777676310c24701745eafe775dfba946.exe 84 PID 3956 wrote to memory of 2088 3956 system.exe 86 PID 3956 wrote to memory of 2088 3956 system.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_777676310c24701745eafe775dfba946.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_777676310c24701745eafe775dfba946.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3940 -
C:\Users\Admin\AppData\Local\Temp\system.exe"C:\Users\Admin\AppData\Local\Temp\system.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3956 -
C:\Windows\SYSTEM32\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\system.exe" "system.exe" ENABLE3⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
PID:2088
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
24KB
MD5777676310c24701745eafe775dfba946
SHA1d7f8d08ddec2d0bb383e18fcc7644f2a851ac5a4
SHA256f30ea4f9504e4541a9fc609e7bb5283b8573adc002beac7c93b3d58d40896e2c
SHA512ee127c8764b33d21064433b0cd306e6c7f1e0d8e6b27b780387a8c4ed8687744e4b21f12706d563d55652cb56bea1737e5f7e1d4ead2019516f2de8c665a910b