Analysis
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max time kernel
148s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10/06/2024, 04:41
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-10_2291df72639b1839f793b162d82513c3_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-10_2291df72639b1839f793b162d82513c3_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-10_2291df72639b1839f793b162d82513c3_cryptolocker.exe
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Size
42KB
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MD5
2291df72639b1839f793b162d82513c3
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SHA1
541a90f68677b0a4972b9a5c5fc0e810cdc4afc5
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SHA256
408340107c86f0cba968de6cccaa81a06543ca368250bdeb617b5a44cae48d21
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SHA512
c3facbf85590ebc1c6dbc384d88d365533f281e57f5e0aafbc198289cd79e92207bb2d2bc305589d4cc8ead346f9bb3b66b5ddb234abe6c55de33d37701b561e
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SSDEEP
768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqFF:bCDOw9aMDooc+vAqH
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2140-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d0000000122b8-11.dat CryptoLocker_rule2 behavioral1/memory/2140-15-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2504-25-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2504 lossy.exe -
Loads dropped DLL 1 IoCs
pid Process 2140 2024-06-10_2291df72639b1839f793b162d82513c3_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 2140 wrote to memory of 2504 2140 2024-06-10_2291df72639b1839f793b162d82513c3_cryptolocker.exe 28 PID 2140 wrote to memory of 2504 2140 2024-06-10_2291df72639b1839f793b162d82513c3_cryptolocker.exe 28 PID 2140 wrote to memory of 2504 2140 2024-06-10_2291df72639b1839f793b162d82513c3_cryptolocker.exe 28 PID 2140 wrote to memory of 2504 2140 2024-06-10_2291df72639b1839f793b162d82513c3_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-10_2291df72639b1839f793b162d82513c3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_2291df72639b1839f793b162d82513c3_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2140 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
PID:2504
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
43KB
MD5be599d772e365bcb6d21acde7210c327
SHA19a904fc99d4ef7b54ba527189c63384927c2f705
SHA256ecca5bf370cc8dfbf5e2083e88fc820f3f80264e02857b6ad1ec21bda0648456
SHA512235188e5f81a0fbd45ee51212e5590bd39f75746cfd43ce38fa8d96e19ac9014b450432f2bf8133f76965ca9ed8f129f5b6e1b657da5f321013b2c410211b74c