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Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
29/01/2024, 05:22
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-29_02572f30f39d569f7343ab94549618af_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-29_02572f30f39d569f7343ab94549618af_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-29_02572f30f39d569f7343ab94549618af_cryptolocker.exe
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Size
40KB
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MD5
02572f30f39d569f7343ab94549618af
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SHA1
d439d1a265a6b571b645f3e45da98df6b463b086
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SHA256
c7a9c00935c18aba0e12e511cc242667e757f96cc32c1bca2fe7ae1a0df3ab24
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SHA512
acddb38d3f7b7e24fa17c77e7a3da5643556ee42c27e70c172c21e14d0da8f56a38b829715284bc19ec405c9a1f1b55e3a8a82117602a8f65aecdc4e6729c683
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SSDEEP
768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8PE4:bIDOw9a0Dwo3P1ojvUSDhc4
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x0009000000012252-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2376 lossy.exe -
Loads dropped DLL 1 IoCs
pid Process 1320 2024-01-29_02572f30f39d569f7343ab94549618af_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1320 wrote to memory of 2376 1320 2024-01-29_02572f30f39d569f7343ab94549618af_cryptolocker.exe 28 PID 1320 wrote to memory of 2376 1320 2024-01-29_02572f30f39d569f7343ab94549618af_cryptolocker.exe 28 PID 1320 wrote to memory of 2376 1320 2024-01-29_02572f30f39d569f7343ab94549618af_cryptolocker.exe 28 PID 1320 wrote to memory of 2376 1320 2024-01-29_02572f30f39d569f7343ab94549618af_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-29_02572f30f39d569f7343ab94549618af_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-29_02572f30f39d569f7343ab94549618af_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1320 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
PID:2376
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
40KB
MD53b43ae917699374211956ddc525aeb48
SHA1f0790df88aa5948d1771c6cdefaa9506c6d7888f
SHA256bc1fa74d8bf4701931bd7ac3654d4264a90ccc023009a9455bec19c0c3079cdb
SHA512a078a6d5e818c42905d5a8c2ccff3552b40e5ac7ed9900eebeac4a9fdbb1e2737a339be147485937aee925b65f43193404f555c4b94e953d201480f4f21aab98