Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
13-09-2024 02:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-13_8d0fa4bd663de56f9d1b42bf21c9544a_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-13_8d0fa4bd663de56f9d1b42bf21c9544a_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-13_8d0fa4bd663de56f9d1b42bf21c9544a_cryptolocker.exe
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Size
43KB
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MD5
8d0fa4bd663de56f9d1b42bf21c9544a
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SHA1
34a88b8e582d3f97f3987eee0b38bf14e00782b7
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SHA256
4854c6d52db692a643eeb2a2858e03865ed26eb5a2c6f751b85b0b3b3e5cc680
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SHA512
d0e8e9bd13577f4e4423a1dfc52c881449b94af61fdea610f23381eca42eb529dd208af7671b6922089ebb78308b7d308346b62d016ffeaa72414870d70d2dd8
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SSDEEP
768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAqjrd:bCDOw9aMDooc+vAqjB
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2740 lossy.exe -
Loads dropped DLL 1 IoCs
pid Process 664 2024-09-13_8d0fa4bd663de56f9d1b42bf21c9544a_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 2024-09-13_8d0fa4bd663de56f9d1b42bf21c9544a_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language lossy.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 664 wrote to memory of 2740 664 2024-09-13_8d0fa4bd663de56f9d1b42bf21c9544a_cryptolocker.exe 29 PID 664 wrote to memory of 2740 664 2024-09-13_8d0fa4bd663de56f9d1b42bf21c9544a_cryptolocker.exe 29 PID 664 wrote to memory of 2740 664 2024-09-13_8d0fa4bd663de56f9d1b42bf21c9544a_cryptolocker.exe 29 PID 664 wrote to memory of 2740 664 2024-09-13_8d0fa4bd663de56f9d1b42bf21c9544a_cryptolocker.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-13_8d0fa4bd663de56f9d1b42bf21c9544a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-13_8d0fa4bd663de56f9d1b42bf21c9544a_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:664 -
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:2740
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
43KB
MD56e821a7760f2a0c30765364bc8e0592a
SHA1962928be279f4b0fdf72e726762d77e4ecfc32d5
SHA256a6b0205a59696c8099c91e835b067a4aa411bd7f0e62bd3d41a76adddc785cff
SHA512229b1c7725cf4b3a48ba3cf540ee365c0ec25ca083b28e77d50d3fc6ab4feb7d1bb57d02cc445f96baa73481deca9f1a0ce511a98cc775d13d295b837c06aa38