Analysis
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max time kernel
132s -
max time network
139s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
04/10/2024, 22:25
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-04_55b3a204f17a2405f903ae7fe3bf82c8_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-04_55b3a204f17a2405f903ae7fe3bf82c8_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-10-04_55b3a204f17a2405f903ae7fe3bf82c8_cryptolocker.exe
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Size
73KB
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MD5
55b3a204f17a2405f903ae7fe3bf82c8
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SHA1
b296c3a618f5b958b43abc22f8719cfab9114f9a
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SHA256
779206713dcab269ca363e4517c516f851bb8fac2fc4f5ad4dafa3e3ba3694f6
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SHA512
2802795fd941e17ee66bee51f7ca35283ce8bf5f37afc2500f29a37c7ffe47dcf62bb0b29035595ddc6955891d69f5569e382e99da10b98f3ee772e65b50602e
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SSDEEP
1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZO59:DW60sllyWOtEvwDpjwF85s
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2504 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2508 2024-10-04_55b3a204f17a2405f903ae7fe3bf82c8_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 2024-10-04_55b3a204f17a2405f903ae7fe3bf82c8_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 2508 wrote to memory of 2504 2508 2024-10-04_55b3a204f17a2405f903ae7fe3bf82c8_cryptolocker.exe 30 PID 2508 wrote to memory of 2504 2508 2024-10-04_55b3a204f17a2405f903ae7fe3bf82c8_cryptolocker.exe 30 PID 2508 wrote to memory of 2504 2508 2024-10-04_55b3a204f17a2405f903ae7fe3bf82c8_cryptolocker.exe 30 PID 2508 wrote to memory of 2504 2508 2024-10-04_55b3a204f17a2405f903ae7fe3bf82c8_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-04_55b3a204f17a2405f903ae7fe3bf82c8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-04_55b3a204f17a2405f903ae7fe3bf82c8_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2508 -
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:2504
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
73KB
MD53339e8f3645876aa1fde3ca38c0dceac
SHA1887e679e8a9909a0c40f07ab1c38f2feec616568
SHA256b55ba13d4a228a201265dba56dca503c5934608a29b489f2ccab2babb82db1e2
SHA51293a22a5c08ea1febb78b6bffe20dd5c38f4e0cd09fc788886ba89e0fdc26121d7b11a8d3daf3fa063f9ba72508498164db5de64073ad6f52c6a118953345659a