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
29/09/2024, 07:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-29_b0217f9a8d4796cf4c78bc81a01b1670_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-29_b0217f9a8d4796cf4c78bc81a01b1670_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-29_b0217f9a8d4796cf4c78bc81a01b1670_cryptolocker.exe
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Size
57KB
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MD5
b0217f9a8d4796cf4c78bc81a01b1670
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SHA1
3ba8d0127ae20b1d84d64e0201558a75552631df
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SHA256
a515a0f4103f15cb897fb2037f957391b132e71e211c074f3778e5bedeb7fcec
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SHA512
f7e31dc3ea9702946a1876a0791906d11486f52da3446b3ded11397cf46a8886f5e650a13538a39af6bc01b2ec7b1a2bbf8f49e3de3e90cc535996a57fa44132
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SSDEEP
1536:V6QFElP6n+gMQMOtEvwDpjyaLccCKdulcrJuE:V6a+pOtEvwDpjv99
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2320 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 1984 2024-09-29_b0217f9a8d4796cf4c78bc81a01b1670_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 2024-09-29_b0217f9a8d4796cf4c78bc81a01b1670_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 1984 wrote to memory of 2320 1984 2024-09-29_b0217f9a8d4796cf4c78bc81a01b1670_cryptolocker.exe 30 PID 1984 wrote to memory of 2320 1984 2024-09-29_b0217f9a8d4796cf4c78bc81a01b1670_cryptolocker.exe 30 PID 1984 wrote to memory of 2320 1984 2024-09-29_b0217f9a8d4796cf4c78bc81a01b1670_cryptolocker.exe 30 PID 1984 wrote to memory of 2320 1984 2024-09-29_b0217f9a8d4796cf4c78bc81a01b1670_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-29_b0217f9a8d4796cf4c78bc81a01b1670_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-29_b0217f9a8d4796cf4c78bc81a01b1670_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1984 -
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:2320
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
58KB
MD5449070fc272fd5046b9d9af7a4af0d12
SHA18f2206006ae22d6502675ae6da3e5a125f7c2628
SHA256f31f96f66096a8088ecfed4ab2825f4041f63fc289061d07abde7def20197e6f
SHA512d10b41f4faee4615faafa13b8242f942eb0eaae9f5603530803c70a564ce9157590d76d1de6cfcfeaba0c9d8f874912575d1fa5616d899bd5532e1ee285f89ab