Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
18/10/2024, 01:51
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe
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Size
27KB
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MD5
930f321422d899296c1fc7c095a44a9c
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SHA1
7529682886b9728fc41dba2058f3cf2f69142920
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SHA256
f91fdae1b4577934332b02f012101b9f959c33bc4577665fc3e53807a762c017
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SHA512
7216cb2cf16dec26ed7844c33ba038ce41185714b44a6cfe1e4f9df2e20823de5c48fea453f3dccd04a8b6938b3b916713e921540c6a87ef464730286bfdff3b
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SSDEEP
384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCA:b7o/2n1TCraU6GD1a4XA
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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation 2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2616 rewok.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 rewok.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3800 wrote to memory of 2616 3800 2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe 85 PID 3800 wrote to memory of 2616 3800 2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe 85 PID 3800 wrote to memory of 2616 3800 2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-18_930f321422d899296c1fc7c095a44a9c_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3800 -
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2616
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
28KB
MD5c935c59e9005ec7e2513d162bcfa598a
SHA1e709033e11f8c26331fd097eb5929ffe04fdbba2
SHA25601ed31eec81a1448289f20dea4e11f4c07ec40e4dcfd32e64c96ff764e88d6fe
SHA512017da2d2143b0d9a945bff43cd8c5c12bbbc4bd5ae725392f739a55bd52d1d79fdbb9351cdb5f27e0f2598a0c63a27f12f8e68f143d1b5b9c500d30d7ec48b78