Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
15-03-2024 17:34
Behavioral task
behavioral1
Sample
2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe
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Size
118KB
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MD5
5b58a488abdef734b90b879e2ad07c2e
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SHA1
5cf1289832446da7ce85a6dab566a3a92bb3f8e2
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SHA256
11f251820ee0bfbab105dea9ebf21c718ecc08f395948e2dc4d90fb5b9a403a4
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SHA512
7916f0963faa2aefbe2a3a00bee6e29c2b572c1410a278b4333a67f7ac8ec88e480322deb76f391d199afdb010a244bf0415365aaec7a5c02e0e536dd091ee3b
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SSDEEP
1536:z6QFElP6n+gKmddpMOtEvwDpj3GYQbN/PKwNgp01ZNd:z6a+CdOOtEvwDpjczL
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2000-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b000000012257-15.dat CryptoLocker_rule2 behavioral1/memory/2000-14-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3016-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3016-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2000-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000b000000012257-15.dat CryptoLocker_set1 behavioral1/memory/2000-14-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3016-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3016-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/2000-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000b000000012257-15.dat UPX behavioral1/memory/2000-14-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/3016-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/3016-26-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 3016 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2000 2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe -
resource yara_rule behavioral1/memory/2000-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000b000000012257-15.dat upx behavioral1/memory/2000-14-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/3016-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/3016-26-0x0000000000500000-0x0000000000510000-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 2000 wrote to memory of 3016 2000 2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe 28 PID 2000 wrote to memory of 3016 2000 2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe 28 PID 2000 wrote to memory of 3016 2000 2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe 28 PID 2000 wrote to memory of 3016 2000 2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-15_5b58a488abdef734b90b879e2ad07c2e_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2000 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:3016
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Network
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Remote address:8.8.8.8:53Requestemrlogistics.comIN AResponseemrlogistics.comIN CNAMEtraff-3.hugedomains.comtraff-3.hugedomains.comIN CNAMEhdr-nlb4-0bbd2e21834cb637.elb.us-east-2.amazonaws.comhdr-nlb4-0bbd2e21834cb637.elb.us-east-2.amazonaws.comIN A3.18.7.81hdr-nlb4-0bbd2e21834cb637.elb.us-east-2.amazonaws.comIN A3.19.116.195
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152 B 3
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152 B 3
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152 B 3
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152 B 3
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152 B 3
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152 B 3
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152 B 3
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52 B 1
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
118KB
MD5def234ba5f9f8fda9db7a42fc53629ad
SHA19101a1c2ac50ef5f26da3ac876255e943731a1cd
SHA256835f544e88d880732bdda5842460cff046c7083317c42615b24bab99a0562ec7
SHA512697e27c5b19c4ff66320a85c2bc92af156b06a20166b0bf4c867d67a00bf472dbe369894578743aa1c9f7787885b97b6f01a4204c3087adc3d43352f311ce065