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Analysis
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max time kernel
151s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
01/02/2024, 23:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe
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Size
41KB
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MD5
be0a45bc4eb66a157c79d8ca25c6e130
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SHA1
6c3196a6f6e2fbc84baddc6917e910538622d5d5
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SHA256
02c073271e52a32d0dd195cddf65ba1648376d7badcb7b331343c8cc3305e671
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SHA512
9c3e09d5f82b5f0ec79b1f8e81a87b00f29d66c40fe5cfb85b34feea94aa617527b90dc3ccf4c86b10b94257b89512c3ad57a7f8a2efec3a156df30340d58a8f
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SSDEEP
768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqyQ:bc/y2lkF0+Bjv
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x0009000000012261-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2216 rewok.exe -
Loads dropped DLL 1 IoCs
pid Process 2192 2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_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 2192 2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe 2216 rewok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2192 wrote to memory of 2216 2192 2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe 28 PID 2192 wrote to memory of 2216 2192 2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe 28 PID 2192 wrote to memory of 2216 2192 2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe 28 PID 2192 wrote to memory of 2216 2192 2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-01_be0a45bc4eb66a157c79d8ca25c6e130_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2192 -
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:2216
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD56a53207bdb75b1bc1054651db4b68580
SHA1b1b87e433e3c3f388dcff147bc63d54cc22976f6
SHA256c2244b8853b997e83a03ec6da099fa7eef3bc7a3686f4d492a6cb7cfeb07304e
SHA512969fcaf2d33e8eedfa380a4123ce7a9199f2bc5b097cb0a52760f7510fde013b0444c440dd13619d75740e0d9b361f17bbc6c567d7ca8f9b250ae6a186de0aa4