Analysis
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max time kernel
148s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
11/08/2024, 02:22
Static task
static1
Behavioral task
behavioral1
Sample
2024-08-11_27ca638b36387ac3800830a19745fa71_cryptolocker.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
2024-08-11_27ca638b36387ac3800830a19745fa71_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-08-11_27ca638b36387ac3800830a19745fa71_cryptolocker.exe
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Size
75KB
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MD5
27ca638b36387ac3800830a19745fa71
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SHA1
26d1b02a51a8d6b840c49c49d80890f330a4ebe2
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SHA256
96227cfafad9813696d6a4f0a10cbfec486990d6b711e1a3d7d7e5b991d210a4
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SHA512
b6bd3526c175a9ebd8ff58af16b746b783dde36902d7138447bca52c773f97f77c37567d2ede4f669b032441329cb844e7b1cc4d320f0260a90e9e5fe3a47fed
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SSDEEP
768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMsMa:u6QFElP6n+gWMOtEvwDpjJGYQbl
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2508 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2180 2024-08-11_27ca638b36387ac3800830a19745fa71_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 asih.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-08-11_27ca638b36387ac3800830a19745fa71_cryptolocker.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2180 wrote to memory of 2508 2180 2024-08-11_27ca638b36387ac3800830a19745fa71_cryptolocker.exe 29 PID 2180 wrote to memory of 2508 2180 2024-08-11_27ca638b36387ac3800830a19745fa71_cryptolocker.exe 29 PID 2180 wrote to memory of 2508 2180 2024-08-11_27ca638b36387ac3800830a19745fa71_cryptolocker.exe 29 PID 2180 wrote to memory of 2508 2180 2024-08-11_27ca638b36387ac3800830a19745fa71_cryptolocker.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-08-11_27ca638b36387ac3800830a19745fa71_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-11_27ca638b36387ac3800830a19745fa71_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2180 -
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:2508
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
75KB
MD51b5f8e075b10ceedd3aa9a1feabf975e
SHA15816a9f930d5ec69d6deb5d446751b7af7b6dee8
SHA256d99892ae504c29b8ce8ffbc26c76afeceb35c947179c48fe2ae7f5129bb3c18b
SHA5121ecdac9a96f94aa5ced27fe63d4081c25f8ecfaf06ed3d5ea2299578e6e9dfbeeda5972322728653fec5b5d3d741a395ad03a2f2d130687e73c4427eb877dfca