Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
24/04/2024, 03:51
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-24_6ad04102bf6684563731afe7c6a04838_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-24_6ad04102bf6684563731afe7c6a04838_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-24_6ad04102bf6684563731afe7c6a04838_cryptolocker.exe
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Size
64KB
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MD5
6ad04102bf6684563731afe7c6a04838
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SHA1
19b8c899e5d69f3ff9ba904ea3bbff0bab5b1b38
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SHA256
da19a1ab36bc18d58cff5136e7f8dc46a123034392d84cf0c811b3e978186ad8
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SHA512
9b0ababfc26e56b7092766bdfbb300e12b0253f3e3cb83b32e668684afbfe8d0fd8ea73061b95ec30f33e3960790bde2a81a32d67f7591d2cd80e9872b5ed9e3
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SSDEEP
1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293CiI:aq7tdgI2MyzNORQtOflIwoHNV2XBFV72
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b00000001224e-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000b00000001224e-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 1856 hurok.exe -
Loads dropped DLL 1 IoCs
pid Process 2732 2024-04-24_6ad04102bf6684563731afe7c6a04838_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of UnmapMainImage 2 IoCs
pid Process 2732 2024-04-24_6ad04102bf6684563731afe7c6a04838_cryptolocker.exe 1856 hurok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2732 wrote to memory of 1856 2732 2024-04-24_6ad04102bf6684563731afe7c6a04838_cryptolocker.exe 28 PID 2732 wrote to memory of 1856 2732 2024-04-24_6ad04102bf6684563731afe7c6a04838_cryptolocker.exe 28 PID 2732 wrote to memory of 1856 2732 2024-04-24_6ad04102bf6684563731afe7c6a04838_cryptolocker.exe 28 PID 2732 wrote to memory of 1856 2732 2024-04-24_6ad04102bf6684563731afe7c6a04838_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-24_6ad04102bf6684563731afe7c6a04838_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-24_6ad04102bf6684563731afe7c6a04838_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2732 -
C:\Users\Admin\AppData\Local\Temp\hurok.exe"C:\Users\Admin\AppData\Local\Temp\hurok.exe"2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:1856
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
64KB
MD508c6328d2c040b2bad65b8006058788f
SHA15c23f5b9200edd468fe6a1340c13f206b9d88cc1
SHA2563d20eaf2bdb37cb197f93527a9e55ea16bdeb1ef701af7f6236cdf2bb8169c1a
SHA51299ba7161a386de940876d8a53567dfa5b499696aa63a4765f836d89e0b92e2dbedccf4c325e1fc09bb0cb46e5d9a51a4b474f90fbde103f4c5ca93567d424dff