Analysis
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max time kernel
148s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
27/05/2024, 18:30
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe
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Size
45KB
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MD5
58bc0995e863bc35be5340147bbde4fa
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SHA1
22a5675326d427d80f850fc85c8dd7a970eb99c9
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SHA256
7c1d119a1ae87314d16626dcf1d660bc059a5237e91938d7dc29f50420c85499
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SHA512
75d48e9fa14cae562f356ece4ef40a565502173ccc59edc11d6d8a54a41433debba44e2faafa11387525a893a17504c47e12705f0c1117fce478b66b387add7d
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SSDEEP
768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsx:V6QFElP6n+gMQMOtEvwDpjyaYaFAh3+
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b000000014230-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000b000000014230-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2600 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2832 2024-05-27_58bc0995e863bc35be5340147bbde4fa_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 2832 wrote to memory of 2600 2832 2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe 28 PID 2832 wrote to memory of 2600 2832 2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe 28 PID 2832 wrote to memory of 2600 2832 2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe 28 PID 2832 wrote to memory of 2600 2832 2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-27_58bc0995e863bc35be5340147bbde4fa_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2832 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2600
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
45KB
MD55b37790ecf1dd1a69acd1d97ce12032e
SHA1c4f8c7fd7e355646f8c31679e1aa0bb82d0da819
SHA2569b2fba8a1c84c3aea63f8a608e5709e6e3331a5cce6f244cc6f566d1e218c97c
SHA512a1734ed5a96f3b418d5e00183789117e751e5ec0f7fce8950d88e6f2c2046e752833ea7645f0ebc70eaadcdf66f7daeaf0241a8615bdd80df9ea90231c2545fa