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Analysis
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max time kernel
143s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
08/03/2024, 05:32
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe
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Size
50KB
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MD5
1f27c53a6ca613a5cc491f3a11ae0005
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SHA1
f5226d8a1619fed4426bad6eac3e4d8ddf3bd479
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SHA256
8b9c1b34f8eb03e64f5274e37b5556779c2c31d7e5d570d1d45298f4704578eb
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SHA512
61fba55947d6acc50bfbe1f8dba305430e196bc1d7026a2f26191fb445a442d58751ae6ff1750c5cdc69554a366f8729fa48050040a043e4aa178c8214960bcf
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SSDEEP
1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAII2:aq7tdgI2MyzNORQtOflIwoHNV2XBFV78
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000d000000012239-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000d000000012239-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 3016 hurok.exe -
Loads dropped DLL 1 IoCs
pid Process 1732 2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_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 1732 2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe 3016 hurok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1732 wrote to memory of 3016 1732 2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe 28 PID 1732 wrote to memory of 3016 1732 2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe 28 PID 1732 wrote to memory of 3016 1732 2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe 28 PID 1732 wrote to memory of 3016 1732 2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-08_1f27c53a6ca613a5cc491f3a11ae0005_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1732 -
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:3016
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
50KB
MD5615628bb70d308a9e67600aefa96dc26
SHA1bf071cd88107a1671b65409e5229f24f90d9e17d
SHA2565c69bc39fd19cb76cc436a18279b5f4277c30a704db7a8f0440f4dd05015aee0
SHA512a1bf24801aaeade58000bbd837d0d33f6f926083e4c3f4e6da7f4d8afa4c1dcd57ee47196edc8af7f9c2700055e8c70d696a0deaf1688506b42b7170acb4e24b