Analysis
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max time kernel
148s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
12/06/2024, 15:31
Behavioral task
behavioral1
Sample
2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe
Resource
win10v2004-20240611-en
General
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Target
2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe
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Size
90KB
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MD5
d93ec1ced0b5f69c389fd03d045de855
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SHA1
7098d420990a15862be8f737738d3bb17b3ba2e8
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SHA256
befb1365ce83ffd7d66fed4ce9495cad45f33029ce9a661f981ad036546a7702
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SHA512
3cac11bbeeb46543bb914349ae7f23e5da00814f5816d8ce2fcbfc3be20295f9c60d67db950daed4f754a3a8fcc110055ba6d006dfb8da83d358ff239ef6db1d
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SSDEEP
1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAA/Nz:n6a+1SEOtEvwDpjYYvQd2Pq
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1868-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3020-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1868-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000012286-14.dat CryptoLocker_rule2 behavioral1/memory/3020-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/1868-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3020-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/1868-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a000000012286-14.dat CryptoLocker_set1 behavioral1/memory/3020-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/1868-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/3020-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/1868-15-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000a000000012286-14.dat UPX behavioral1/memory/3020-26-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 3020 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 1868 2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe -
resource yara_rule behavioral1/memory/1868-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/3020-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/1868-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000a000000012286-14.dat upx behavioral1/memory/3020-26-0x0000000000500000-0x0000000000510000-memory.dmp upx -
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 1868 wrote to memory of 3020 1868 2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe 28 PID 1868 wrote to memory of 3020 1868 2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe 28 PID 1868 wrote to memory of 3020 1868 2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe 28 PID 1868 wrote to memory of 3020 1868 2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-12_d93ec1ced0b5f69c389fd03d045de855_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1868 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:3020
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
90KB
MD5ec75422326eeb960e3eb62f6f1a63aed
SHA19e1f20c444f5cb3c4b550b58f0d96fbd543e0916
SHA256cccd250bacda6dee0b04f187ce96d4fbbd40384addcda3f5b88be56decdee88a
SHA512e856894119e23ba3a5f6ff355350a64ae16b719b15acda72a14a23bbfa3948dd1322bda73a086134a1cde186d9b045ca2e6543479c383d06b37d2b972fc9f7a8