Analysis
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max time kernel
148s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
07-09-2024 01:05
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-07_153eb4987394e2898bb148f59f0117fe_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-07_153eb4987394e2898bb148f59f0117fe_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-07_153eb4987394e2898bb148f59f0117fe_cryptolocker.exe
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Size
47KB
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MD5
153eb4987394e2898bb148f59f0117fe
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SHA1
5c66dd4538304b1897336af0967b3aeaf4972bdc
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SHA256
7070efa55c60dec1d329c6d7ceef6e93ee848105df2f0741ce7c0d51482390cf
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SHA512
9cf4c7f0790ee899494e7cf13d70502ecd89215ac970050345107988168628466679e23b4e5cc41d60bcbb4f9cd2ae95757240a56be09d066c4a2f414e9d0fd6
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SSDEEP
768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPlAW:P6QFElP6k+MRQMOtEvwDpjBQpVX8AW
Malware Config
Signatures
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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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation 2024-09-07_153eb4987394e2898bb148f59f0117fe_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3916 asih.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 2024-09-07_153eb4987394e2898bb148f59f0117fe_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2784 wrote to memory of 3916 2784 2024-09-07_153eb4987394e2898bb148f59f0117fe_cryptolocker.exe 84 PID 2784 wrote to memory of 3916 2784 2024-09-07_153eb4987394e2898bb148f59f0117fe_cryptolocker.exe 84 PID 2784 wrote to memory of 3916 2784 2024-09-07_153eb4987394e2898bb148f59f0117fe_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-07_153eb4987394e2898bb148f59f0117fe_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-07_153eb4987394e2898bb148f59f0117fe_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3916
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
47KB
MD59951670c93eed5f1f750506fa51da898
SHA12506f438a75c188b9809cb473c1415bf72a4e574
SHA2563bdfd165d7bded974a019fa211e5652df1a1a9fd591c15638d2f6a3aa60ead1a
SHA512afd8316745794badcf7fedd18dcd63f93f844d072fa1c8804ac27c56c0bfc2c3ab49c70fe4f46f47862315b4b83bd7db5c9c90867e06dfacbafd9a8e3b550588