Analysis
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max time kernel
147s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
09-01-2025 18:31
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe
Resource
win7-20240903-en
General
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Target
JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe
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Size
2.0MB
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MD5
cf34137a554698c7d6f0c48a09026acd
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SHA1
9f9ef51f68b9f5c7037d4b8f1b2a24c4c4c04f6d
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SHA256
d5578cc3db622f678f2c471f007786e5686d34b5b17db9c5ce207979d0d1bd4d
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SHA512
c23e6c98eb6b61e440799313190676f52007ff8011d52ec462559cc642deada8b438f940ee9c3a6afe26d2c3ec17ac09d5fc1589e60f738d83b8f8b4fa3902e4
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SSDEEP
49152:z1MtJnuVGTK39Oo/c1B4qpS96QaXVeqDX1eV:ZMt9uVQK39Ook4mOhO0
Malware Config
Signatures
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Nanocore family
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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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe -
Executes dropped EXE 1 IoCs
pid Process 2180 svchost.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Winlogon = "c:\\Windows\\svchost.exe" JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe" svchost.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA svchost.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\ARP Host\arphost.exe svchost.exe File opened for modification C:\Program Files (x86)\ARP Host\arphost.exe svchost.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created \??\c:\Windows\svchost.exe JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 1288 JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe 1288 JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe 2180 svchost.exe 2180 svchost.exe 2180 svchost.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2180 svchost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2180 svchost.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1288 wrote to memory of 2180 1288 JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe 86 PID 1288 wrote to memory of 2180 1288 JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe 86 PID 1288 wrote to memory of 2180 1288 JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cf34137a554698c7d6f0c48a09026acd.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1288 -
C:\Windows\svchost.exe"C:\Windows\svchost.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:2180
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
202KB
MD544a0d9c3fca67886ccc0247ab6debe0a
SHA10c17d3801ee53483934568ddd70581b4ce068f32
SHA25683d33ec256ca80fab88fcbef8403d905e3618146805d7e0c3e3bcd3a1e739e8e
SHA512024374eba4c5aaf85234fd746974b52b834883c5091db7538c832b1d699a1158152815827f9993c46c2b6ba9a3fc536569a15da35f82cf993d788c201bc43bee