Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
10/10/2024, 05:11
Behavioral task
behavioral1
Sample
2024-10-10_913d79ed415cf23fa0da3a26dc621187_cryptolocker.exe
Resource
win7-20240903-en
General
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Target
2024-10-10_913d79ed415cf23fa0da3a26dc621187_cryptolocker.exe
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Size
40KB
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MD5
913d79ed415cf23fa0da3a26dc621187
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SHA1
636a27cdb8ff886747f4b82430c5384b09378845
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SHA256
f2b79da2bc338b7a39e5eda1d44e9f02da530fbec2f854a8eb766c9e6b3d8d44
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SHA512
85bc4cdbfced086dfdbb40ed8524c7c5118660e2a7a938255a8042f2f828bc174bcf70ab95035dfe51c9f516ead215297f9f18d407ef13fd8433ecf99b458c49
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SSDEEP
768:qTVbxjgQNQXtckstOOtEvwDpjAaD3TUogs/VXpAPWRiQ:qTJu9cvMOtEvwDpjppVXzRh
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2364 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2744 2024-10-10_913d79ed415cf23fa0da3a26dc621187_cryptolocker.exe -
resource yara_rule behavioral1/memory/2744-0-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/memory/2744-15-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/files/0x0008000000012102-11.dat upx behavioral1/memory/2364-17-0x0000000000500000-0x000000000050F000-memory.dmp upx behavioral1/memory/2364-27-0x0000000000500000-0x000000000050F000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-10-10_913d79ed415cf23fa0da3a26dc621187_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2744 wrote to memory of 2364 2744 2024-10-10_913d79ed415cf23fa0da3a26dc621187_cryptolocker.exe 31 PID 2744 wrote to memory of 2364 2744 2024-10-10_913d79ed415cf23fa0da3a26dc621187_cryptolocker.exe 31 PID 2744 wrote to memory of 2364 2744 2024-10-10_913d79ed415cf23fa0da3a26dc621187_cryptolocker.exe 31 PID 2744 wrote to memory of 2364 2744 2024-10-10_913d79ed415cf23fa0da3a26dc621187_cryptolocker.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-10_913d79ed415cf23fa0da3a26dc621187_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-10_913d79ed415cf23fa0da3a26dc621187_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2364
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
40KB
MD517ee7644cd45241455d0d887c5ba8177
SHA19467228fba2a62461b1e526e6ed0efec190c2505
SHA2565041ea7e83ac8bf9298b2655fc4877d04a3dc93b5d448ca1bff139bd1fbb13c9
SHA512e06c395b23e94d4e91cd231637e5a59f8c33348b0437f7fb7ea3e42274b23e5c81a3f5a3d5f99427fc8872aa021f2655b39b4155331002c0cd6b6421c1d7f1d9