Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
09/05/2024, 23:23
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-09_168d562e1b81ab73d9bb2f5f03c190d5_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-09_168d562e1b81ab73d9bb2f5f03c190d5_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-09_168d562e1b81ab73d9bb2f5f03c190d5_cryptolocker.exe
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Size
64KB
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MD5
168d562e1b81ab73d9bb2f5f03c190d5
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SHA1
d43a5242dd976abd613655d11dd1ef26f459f15d
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SHA256
224db769c7dcba48ca4f0999f4a44e8e43d5a123c3c15ef683da1ae53d67b37b
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SHA512
e03e4ba5cdbf4b13ef551ed8a291680ec9a0c5c66ef15e50634bc2fe3eb8b9df39a996a7a532db9d594bbf3fca5eba618c1fc956cf5240ca5275e56e10d0fd48
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SSDEEP
1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293CiVm:aq7tdgI2MyzNORQtOflIwoHNV2XBFV72
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b000000013413-13.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000b000000013413-13.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2364 hurok.exe -
Loads dropped DLL 1 IoCs
pid Process 2384 2024-05-09_168d562e1b81ab73d9bb2f5f03c190d5_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 2384 2024-05-09_168d562e1b81ab73d9bb2f5f03c190d5_cryptolocker.exe 2364 hurok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2384 wrote to memory of 2364 2384 2024-05-09_168d562e1b81ab73d9bb2f5f03c190d5_cryptolocker.exe 28 PID 2384 wrote to memory of 2364 2384 2024-05-09_168d562e1b81ab73d9bb2f5f03c190d5_cryptolocker.exe 28 PID 2384 wrote to memory of 2364 2384 2024-05-09_168d562e1b81ab73d9bb2f5f03c190d5_cryptolocker.exe 28 PID 2384 wrote to memory of 2364 2384 2024-05-09_168d562e1b81ab73d9bb2f5f03c190d5_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-09_168d562e1b81ab73d9bb2f5f03c190d5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-09_168d562e1b81ab73d9bb2f5f03c190d5_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2384 -
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:2364
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
64KB
MD5467d447e4dcd1bc667c92e0644d7d8f0
SHA14e6f35bd660ba05e05b715d5b9c5aec90ef946ea
SHA256a0d0371b1f5029d4e42f5e720e6fd1dea9de478b4afe5cfc5812f914d17bfa51
SHA512541761259fed6395f68986beaddeef7ee056355cc58e71b60819d4fdf9329679b5f2be26112a693cf860f666f92810dc3372ac5871a61092fe2873cc0301e3fd