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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
13/10/2024, 05:41
Behavioral task
behavioral1
Sample
2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe
Resource
win7-20240903-en
General
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Target
2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe
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Size
55KB
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MD5
bde5e39aff9dba4980d9c67a72b4028c
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SHA1
a21a95574cbe963ab8f4c56fd4201776e5274615
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SHA256
5a4ec8061f50a0dffacc27707fcb5b93d71c8d546549875347a848997fcbeb0c
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SHA512
d0354971cf4091f1ea2d5889ec73f0feeb661c634171a5edb8ddd3da1a92b1f09b0e19bcda18edc0fd3dfd62cbba65a99e84f639dbd3e00814d5b34a9a31c43d
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SSDEEP
768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YY1J+OTOkVL:z6QFElP6n+gKmddpMOtEvwDpj31ikVL
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2488 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 268 2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe -
resource yara_rule behavioral1/memory/268-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000b0000000122ea-11.dat upx behavioral1/memory/2488-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/268-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2488-26-0x0000000000500000-0x0000000000510000-memory.dmp upx -
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 2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_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 268 wrote to memory of 2488 268 2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe 31 PID 268 wrote to memory of 2488 268 2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe 31 PID 268 wrote to memory of 2488 268 2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe 31 PID 268 wrote to memory of 2488 268 2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-13_bde5e39aff9dba4980d9c67a72b4028c_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:268 -
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:2488
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
55KB
MD55cc673aabe30f5ecdd8454bd16052256
SHA178bea0ce6b6abb5cc7ca1a307d8317839d7bff55
SHA256f7b267723bda8373d3103a3356c2952861c6ef9c8b424637928c038300002dea
SHA512115e35f8bc826ae7459f43a9655c4aef8da02e222bd0de85a4c08900e75275370d48eb210c236011f532877a99d525316a18918bb30f138a3b54f16d1868700a