Analysis
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max time kernel
143s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
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submitted
12/02/2024, 20:25
General
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Target
2024-02-12_e3f86faf8669d385b7b79d26470e42ab_cryptolocker.exe
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Size
81KB
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MD5
e3f86faf8669d385b7b79d26470e42ab
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SHA1
ad57ed1d73de7cdce29bebe868cebd9a8f95f99f
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SHA256
3c38dcaee834af4375b24cbfc5b4de398f7d64f211ee2be41a9c30dadbd1f983
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SHA512
2d1f2e960bfadde82c37e5bf49b79054ee32f4002aaa0af039f0ddceb39024b9e831fa40c489b88e7563ef6b4cadcaa221e1513d03c0c80209cda1d4933bd944
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky2fm:zCsanOtEvwDpjo
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
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Detection of Cryptolocker Samples 5 IoCs
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UPX dump on OEP (original entry point) 5 IoCs
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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 1 IoCs
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UPX packed file 5 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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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
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-12_e3f86faf8669d385b7b79d26470e42ab_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-12_e3f86faf8669d385b7b79d26470e42ab_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
81KB
MD5fdec49d962b334823ed9cd8b94ea048e
SHA1ee4efae2b439b161b52af096b23bb23dd00c0cd9
SHA256a4b7ad37fd81c0cd22565b3c7c0a1f28b2eafcd99b8f353fbfc785879371a5a7
SHA512de8625303f87e1129b5f9928c91a414b36ae49f2fb65eae2c976e9295722eeb143cdb6f0a3fb09e9f04c0cb8902305fbd774eb0fe81f4387224f3e4e1ef54d10
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB
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Filesize
64KB
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Filesize
24KB
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Filesize
24KB
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Filesize
24KB
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Filesize
64KB