Analysis
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max time kernel
149s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
10/10/2024, 05:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-10_cf77b508971faf56620d00adf36bb608_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-10_cf77b508971faf56620d00adf36bb608_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-10_cf77b508971faf56620d00adf36bb608_cryptolocker.exe
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Size
63KB
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MD5
cf77b508971faf56620d00adf36bb608
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SHA1
dfc401527539b181d4bc9ee7cff799bc22672564
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SHA256
11f95816d62f117d180948710b1aea903f30a7c93181dce6a60c8cc5576eb518
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SHA512
1d454caf33693ff49fb84fd339b5afc54ef693f95a5679a925ba0943c0c046c69bb68204e19be27524a4a60055af9efe3fded6f78c1e33c16185ba19d59a4724
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SSDEEP
1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZne:btng54SMLr+/AO/kIhfoKMHdae
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2812 gewos.exe -
Loads dropped DLL 1 IoCs
pid Process 2664 2024-10-10_cf77b508971faf56620d00adf36bb608_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 2024-10-10_cf77b508971faf56620d00adf36bb608_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language gewos.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 2664 2024-10-10_cf77b508971faf56620d00adf36bb608_cryptolocker.exe 2812 gewos.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2664 wrote to memory of 2812 2664 2024-10-10_cf77b508971faf56620d00adf36bb608_cryptolocker.exe 30 PID 2664 wrote to memory of 2812 2664 2024-10-10_cf77b508971faf56620d00adf36bb608_cryptolocker.exe 30 PID 2664 wrote to memory of 2812 2664 2024-10-10_cf77b508971faf56620d00adf36bb608_cryptolocker.exe 30 PID 2664 wrote to memory of 2812 2664 2024-10-10_cf77b508971faf56620d00adf36bb608_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-10_cf77b508971faf56620d00adf36bb608_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-10_cf77b508971faf56620d00adf36bb608_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2664 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
PID:2812
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
63KB
MD53347e22756d3ee755985e5404860efe4
SHA194539163d0ba441d58bdd00590273dc6cb30b8c8
SHA256ca9a2e4e92759fbc0f3984639a1abf11634b83d2571b3701a3b59685534ac051
SHA51252b8db01686f0e599c8650dcb16609f4387cf3769b64f425910e3ea828f7883943a56cf220d83890b1b79270a2cf62436ebdb5a7054a4916d4930a25fbba0ff2