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Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
07/06/2024, 01:36
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-07_f2836e930c592116bbcfaaf30a464b62_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-06-07_f2836e930c592116bbcfaaf30a464b62_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-07_f2836e930c592116bbcfaaf30a464b62_cryptolocker.exe
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Size
33KB
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MD5
f2836e930c592116bbcfaaf30a464b62
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SHA1
5d1c2e9f1c21faefbd257dac71b924508ac04591
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SHA256
f9aff73f72733e71781ead4790520750bd2642112ac445eb9feda4366b1f816a
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SHA512
9f4205b4f36edb61ebbb09a7cacc8ab14524d7510ac31377106efc944b2b3d8e41af86413f2df1808f8d9e923c5d29f92956a703f330584cdde3e8850f682a33
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SSDEEP
384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cJ3v7b:bAvJCYOOvbRPDEgXRcJP
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x0009000000023289-12.dat CryptoLocker_rule2 -
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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 2024-06-07_f2836e930c592116bbcfaaf30a464b62_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 376 demka.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 4932 wrote to memory of 376 4932 2024-06-07_f2836e930c592116bbcfaaf30a464b62_cryptolocker.exe 82 PID 4932 wrote to memory of 376 4932 2024-06-07_f2836e930c592116bbcfaaf30a464b62_cryptolocker.exe 82 PID 4932 wrote to memory of 376 4932 2024-06-07_f2836e930c592116bbcfaaf30a464b62_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-07_f2836e930c592116bbcfaaf30a464b62_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-07_f2836e930c592116bbcfaaf30a464b62_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4932 -
C:\Users\Admin\AppData\Local\Temp\demka.exe"C:\Users\Admin\AppData\Local\Temp\demka.exe"2⤵
- Executes dropped EXE
PID:376
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
33KB
MD5c898756eefcd9e2e3daa9d88f37cf256
SHA1ca4fdf44d2ce4ca772442eab26a298994b6196e8
SHA2566e7e0030800deb29de2a25d22344ede35369dd102d5564dad9b4b8e7f03198e2
SHA5121c51f3ecba1fba74950ae16aea7c90decfeb6dbd1bc978c8651cbe9bcb0d183a4ff599a15923413c1ae862207511cd78ac3cd9f167fcd5245ecc9f4e927b2bee