Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240705-en -
resource tags
arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system -
submitted
25/08/2024, 07:04
Static task
static1
Behavioral task
behavioral1
Sample
2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe
Resource
win7-20240705-en
Behavioral task
behavioral2
Sample
2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe
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Size
43KB
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MD5
e69aab1ac7b3fbc5f284b646c1ffbab8
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SHA1
999847b788018ae084d77efbcb3af2eebb2842ba
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SHA256
a271790dcfcaed3d78124ca874c61fbf2b9a729f701199be1dbeab514cdfe2d4
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SHA512
51c670595f13bac3f085504cb4c47103461d1e470bcf3c416d6c345bbc945ead9a2e2b685884a6cb0e96f7e8ee0aef5ab40d434c60efadff1dad67dbbe539c57
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SSDEEP
768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAd3hj:bCDOw9aMDooc+vA3
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2068 lossy.exe -
Loads dropped DLL 1 IoCs
pid Process 2972 2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe -
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 lossy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2972 wrote to memory of 2068 2972 2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe 30 PID 2972 wrote to memory of 2068 2972 2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe 30 PID 2972 wrote to memory of 2068 2972 2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe 30 PID 2972 wrote to memory of 2068 2972 2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2972 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2068
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
43KB
MD5c79c804c9180629bf5cef032dda5b526
SHA1c717c7bcd2c62e78e7f8cb098754e2bfafc54731
SHA256e25a28cef60f5184b3ba4c64cf159bef876f4f7313b8a1c9cc2bfbe942928d31
SHA512442bf2266773a6cec8d4ea460c276c115e98dc761aa6283d87cccd0858cbe3e2189ef3ca6d925ab9186356b625d8d84aaa52538e9de5d09678f155212972c211