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Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
07/03/2024, 21:45
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe
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Size
47KB
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MD5
eac429a798a111df3c486348376ddd18
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SHA1
f7c4093cf76302e9adfd8a90adf7cccb5b6b0b3f
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SHA256
baa1661ef0fb74775e7a5021aaf4a6c743ac775f4285e158f9d1d3cc65e2ec76
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SHA512
bb716b3462203a85b8052526019acc5f5db4f73cbf9601ae7d5c0cb62e3fa094286749a6d442c498b9d5e337c081a08e680cf3975d59cca833efa17dc7c8ff0f
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SSDEEP
768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6j4AYsqSh+DETkedmhTTHFACo:YGzl5wjRQBBOsP1QMOtEvwDpjl39+D+h
Malware Config
Signatures
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Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral2/memory/2344-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000b000000023161-13.dat CryptoLocker_rule2 behavioral2/memory/2344-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral2/memory/2344-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral2/files/0x000b000000023161-13.dat CryptoLocker_set1 behavioral2/memory/2344-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
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-1-5-21-1497073144-2389943819-3385106915-1000\Control Panel\International\Geo\Nation 2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4528 asih.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 2344 wrote to memory of 4528 2344 2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe 84 PID 2344 wrote to memory of 4528 2344 2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe 84 PID 2344 wrote to memory of 4528 2344 2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-07_eac429a798a111df3c486348376ddd18_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2344 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:4528
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
47KB
MD50a47163aca53707d4068edbf8fee77f7
SHA1a757fff13668dc6f0507c847e0e41039ff343774
SHA2569325ef7f933d5c6d60fe38272229d468fc56a60d89f3f2bc3c34fbb20cf0bd68
SHA512a8e8e0f8a0df54d3141f67265c7e3db1a6aff8ab03224998fa7f1d00821fc566bf63e03e6be6165a7b6da201f697efec54e75250b5269387f1619fae46addcac