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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
19/02/2024, 05:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-19_fcb1e2b12daeb61c39f3c805519af787_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-19_fcb1e2b12daeb61c39f3c805519af787_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-19_fcb1e2b12daeb61c39f3c805519af787_cryptolocker.exe
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Size
54KB
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MD5
fcb1e2b12daeb61c39f3c805519af787
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SHA1
4e2038c4adf90473938d8a9425c831b632ef10f7
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SHA256
1345499f6bf11bddb43c22bc763fe87182ed87270ef85b7d353c8c08756313b2
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SHA512
e8e7a2d972ce852d9336bd3c3cb17d0ae5b1dafe50913a0283289024a26cbabb4e526647ea24785d4d5e8bec0fe24fd5e7f37b1e6f28311100c1dea4d67b3189
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SSDEEP
1536:X6QFElP6n+gJBMOtEvwDpjBtE1yILJ0V1:X6a+BOtEvwDpjBOi
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b000000012251-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000b000000012251-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2872 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 1428 2024-02-19_fcb1e2b12daeb61c39f3c805519af787_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1428 wrote to memory of 2872 1428 2024-02-19_fcb1e2b12daeb61c39f3c805519af787_cryptolocker.exe 28 PID 1428 wrote to memory of 2872 1428 2024-02-19_fcb1e2b12daeb61c39f3c805519af787_cryptolocker.exe 28 PID 1428 wrote to memory of 2872 1428 2024-02-19_fcb1e2b12daeb61c39f3c805519af787_cryptolocker.exe 28 PID 1428 wrote to memory of 2872 1428 2024-02-19_fcb1e2b12daeb61c39f3c805519af787_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-19_fcb1e2b12daeb61c39f3c805519af787_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-19_fcb1e2b12daeb61c39f3c805519af787_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1428 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2872
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
55KB
MD566ea9d280b0956f5d02485549ccdb0da
SHA19696f2b2cd18ec858c87a38f117e9868f1af4883
SHA2568cd44df9d345a9309ba0b37c3000e9bc4d5084a0de1f60907e40d16a50d8b5e7
SHA512a48c1c0584ce82ea8505b9f5881da62bedb64078ded9a4d06d883d0d1ca130c4baacd249278a635e73ffaaa44fdacc716d81d2a9dae721719f415d9c8dfff257