Analysis
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max time kernel
189s -
max time network
202s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
07/01/2024, 12:05
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-06_05f19fa8693771910bfeb8b7dad319e7_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-06_05f19fa8693771910bfeb8b7dad319e7_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-06_05f19fa8693771910bfeb8b7dad319e7_cryptolocker.exe
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Size
50KB
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MD5
05f19fa8693771910bfeb8b7dad319e7
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SHA1
214083986cef63b18e0ffaecbd80793748bc83ce
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SHA256
9c4fe73a2f6b6196cc1c12787060270b32a1f29bfbe455cb9ae47338256943f4
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SHA512
4ec0e9369826d200e9f71496f00abd3d5664510b336118bf70de43e188c88d91fed59c250864d9ca1722590e08c76389adbe1db49e3a5b88baa557ce56bd6479
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SSDEEP
768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9+:bIDOw9a0DwitDZzx
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-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation 2024-01-06_05f19fa8693771910bfeb8b7dad319e7_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2520 lossy.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3896 wrote to memory of 2520 3896 2024-01-06_05f19fa8693771910bfeb8b7dad319e7_cryptolocker.exe 90 PID 3896 wrote to memory of 2520 3896 2024-01-06_05f19fa8693771910bfeb8b7dad319e7_cryptolocker.exe 90 PID 3896 wrote to memory of 2520 3896 2024-01-06_05f19fa8693771910bfeb8b7dad319e7_cryptolocker.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-06_05f19fa8693771910bfeb8b7dad319e7_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-06_05f19fa8693771910bfeb8b7dad319e7_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3896 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
PID:2520
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
50KB
MD5347df0c599e51a9530cf34d7460cfe42
SHA114788c9cd7d129cd45bc77c1bc6edfed712a4182
SHA256d1546282a5564316d3a49d8af8cc1aef413cc3e9e6b55ce2eda37108c70db52f
SHA512c7a533b54a9bf823065445a5acd498693efc238668f09e9adb6389d60f8cc0043bc149fa482ed6bcc4b2d244052b563b7b457858166834957a5f75af1ba84289