Analysis
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max time kernel
132s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
12/09/2024, 05:11
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-12_a906f72ca916fd6bcff7400ff8db5be0_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-12_a906f72ca916fd6bcff7400ff8db5be0_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-12_a906f72ca916fd6bcff7400ff8db5be0_cryptolocker.exe
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Size
86KB
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MD5
a906f72ca916fd6bcff7400ff8db5be0
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SHA1
21b1b0c58305ef3dd6a827932ea0a5e4c358f864
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SHA256
12af74f7a13c4f4a978ae657b2fd33f93dd142d91df38754ebda5063621828d3
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SHA512
749e321bb1a3c1b6c64497fd5c2d5e9daf6ce79f2a8df9134251033b340b8b9e28fa6ee3d23328ff4c7f63658a5e80ad272c49178631f069dd7eaff7e635faa8
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SSDEEP
1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6ao4:V6a+pOtEvwDpjvph
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2540 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 3056 2024-09-12_a906f72ca916fd6bcff7400ff8db5be0_cryptolocker.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 2024-09-12_a906f72ca916fd6bcff7400ff8db5be0_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3056 wrote to memory of 2540 3056 2024-09-12_a906f72ca916fd6bcff7400ff8db5be0_cryptolocker.exe 30 PID 3056 wrote to memory of 2540 3056 2024-09-12_a906f72ca916fd6bcff7400ff8db5be0_cryptolocker.exe 30 PID 3056 wrote to memory of 2540 3056 2024-09-12_a906f72ca916fd6bcff7400ff8db5be0_cryptolocker.exe 30 PID 3056 wrote to memory of 2540 3056 2024-09-12_a906f72ca916fd6bcff7400ff8db5be0_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-12_a906f72ca916fd6bcff7400ff8db5be0_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-12_a906f72ca916fd6bcff7400ff8db5be0_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3056 -
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:2540
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
87KB
MD5d05e38a7259f92a43d9581481940e8f1
SHA1f8cb39c5e45d185b90b22d6807df47fd6e3c2153
SHA256d4114826f52ca8b4974cdc06a71a69a3c1dfabbd3c7172609e5147aecf21963f
SHA5124e5c20bd14a3e0cb8c8ff7f53a0cd2af99c7c0f4125fb5399af7f7144a7ab840b4533cbd07a6b063a22fe047358a7910b37e7f05aac52e3f8f44259dd553804b