Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
11/06/2024, 03:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-11_0baf492ae393e1b39a65d1123ca6932c_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-11_0baf492ae393e1b39a65d1123ca6932c_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-11_0baf492ae393e1b39a65d1123ca6932c_cryptolocker.exe
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Size
62KB
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MD5
0baf492ae393e1b39a65d1123ca6932c
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SHA1
887f86d42dd24ef9cd5cdffe39a0b267eb367b7b
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SHA256
4ae1bf9cd39bf5a99b5dad13f8caf8dd2de4559f014bd5cdc032e57da5fa944e
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SHA512
ae0d0ff83a2657c902fd77575c52756c9f33c92383f540baf63c74d20e2db20876f9bad50037b308f26b8d49e3ca7d2b98efa07b8b780400b0a5a5bf4ee32fda
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SSDEEP
768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9u:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWws
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral2/memory/3928-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral2/files/0x000c000000023399-13.dat CryptoLocker_rule2 behavioral2/memory/3928-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3468-18-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral2/memory/3468-26-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral2/memory/3928-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral2/files/0x000c000000023399-13.dat CryptoLocker_set1 behavioral2/memory/3928-17-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral2/memory/3468-18-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral2/memory/3468-26-0x0000000000500000-0x000000000050B000-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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation 2024-06-11_0baf492ae393e1b39a65d1123ca6932c_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3468 misid.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 3928 wrote to memory of 3468 3928 2024-06-11_0baf492ae393e1b39a65d1123ca6932c_cryptolocker.exe 82 PID 3928 wrote to memory of 3468 3928 2024-06-11_0baf492ae393e1b39a65d1123ca6932c_cryptolocker.exe 82 PID 3928 wrote to memory of 3468 3928 2024-06-11_0baf492ae393e1b39a65d1123ca6932c_cryptolocker.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-11_0baf492ae393e1b39a65d1123ca6932c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_0baf492ae393e1b39a65d1123ca6932c_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3928 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3468
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
63KB
MD5fa5ae00c6e411f892e02e2448a15ac46
SHA11a4105913d34d1a478d76af96109e7c33b9fae55
SHA256b30d55a923f69cbd13ed267d55f310c3f9936478c1cc5a716ed79b47a9427d21
SHA512d5c51bff4126dea8be3cb6b7c8152fd2ef58e967fda636ac1baba0663278e9c5127c5b15931a8b75178b1ccac020b71d2eac54cff777d5fe14cef612debce6ea