Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
23/07/2024, 19:04
Static task
static1
Behavioral task
behavioral1
Sample
2024-07-23_d47bfbb7d677b67f9bd3669d73f17d85_cryptolocker.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-07-23_d47bfbb7d677b67f9bd3669d73f17d85_cryptolocker.exe
Resource
win10v2004-20240709-en
General
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Target
2024-07-23_d47bfbb7d677b67f9bd3669d73f17d85_cryptolocker.exe
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Size
392KB
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MD5
d47bfbb7d677b67f9bd3669d73f17d85
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SHA1
9349350a310c70e7a52e0c9820bbc99814a08782
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SHA256
e33472bc0704ef9fca6148bf63f9e6b50bde1ddf81ef596d0c188bf0b9fd53f9
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SHA512
1a96914df29ddbce2c7cbdc05cd8ebcc12aeead971d6910cc4b140c0f01f36fcf4a36d2a87dbe9880c22c495a127c58319f6bae93f07cf6ac047b878a2e794cd
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SSDEEP
6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXRf:nnOflT/ZFIjBz3xjTxynGUOUhXRf
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2284 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 1724 2024-07-23_d47bfbb7d677b67f9bd3669d73f17d85_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 2024-07-23_d47bfbb7d677b67f9bd3669d73f17d85_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1724 wrote to memory of 2284 1724 2024-07-23_d47bfbb7d677b67f9bd3669d73f17d85_cryptolocker.exe 30 PID 1724 wrote to memory of 2284 1724 2024-07-23_d47bfbb7d677b67f9bd3669d73f17d85_cryptolocker.exe 30 PID 1724 wrote to memory of 2284 1724 2024-07-23_d47bfbb7d677b67f9bd3669d73f17d85_cryptolocker.exe 30 PID 1724 wrote to memory of 2284 1724 2024-07-23_d47bfbb7d677b67f9bd3669d73f17d85_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-07-23_d47bfbb7d677b67f9bd3669d73f17d85_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-07-23_d47bfbb7d677b67f9bd3669d73f17d85_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2284
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
393KB
MD5d34d34f53fde00e3cc83e49d35074dcb
SHA1bcebc4abc1e594d64f524823caeddc84d113a86a
SHA256442dfe8a857ad085aadea7a130788b666062c787717610cc7b25c50fb00aad61
SHA5121c4733e9d0a32dccfa48edbcad4dee88c618bfb96ac0091a1e29b32a2f856024d3bef6e84101a51fb03581541430a189ad7c1bd7bd8e7dfc81c01b2eb82ff179