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Analysis
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max time kernel
132s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
18/10/2024, 00:43
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-18_9b2ecc70b2567a0f33e5743333665684_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-18_9b2ecc70b2567a0f33e5743333665684_cryptolocker.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-18_9b2ecc70b2567a0f33e5743333665684_cryptolocker.exe
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Size
28KB
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MD5
9b2ecc70b2567a0f33e5743333665684
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SHA1
e3c62f4d42b402e579bc0940c2476c5f1f8bba4d
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SHA256
f7e40800de63813c1fa2a31c30bdabcbf8d0b98ee5038d8bd526bf80057be1d6
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SHA512
b8cb5e2ccb9344407f80c57e7c1cae8a7b5bdf21bdfadccb2051feae6fdc5990ed3745cec4c5c146994a13a11f43683828cfb88aa6d96d95f77166b4e7555cf1
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SSDEEP
384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoIW:b7o/2n1TCraU6GD1a4X3W
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2384 rewok.exe -
Loads dropped DLL 1 IoCs
pid Process 1856 2024-10-18_9b2ecc70b2567a0f33e5743333665684_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 2024-10-18_9b2ecc70b2567a0f33e5743333665684_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rewok.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 1856 2024-10-18_9b2ecc70b2567a0f33e5743333665684_cryptolocker.exe 2384 rewok.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1856 wrote to memory of 2384 1856 2024-10-18_9b2ecc70b2567a0f33e5743333665684_cryptolocker.exe 30 PID 1856 wrote to memory of 2384 1856 2024-10-18_9b2ecc70b2567a0f33e5743333665684_cryptolocker.exe 30 PID 1856 wrote to memory of 2384 1856 2024-10-18_9b2ecc70b2567a0f33e5743333665684_cryptolocker.exe 30 PID 1856 wrote to memory of 2384 1856 2024-10-18_9b2ecc70b2567a0f33e5743333665684_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-18_9b2ecc70b2567a0f33e5743333665684_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-18_9b2ecc70b2567a0f33e5743333665684_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1856 -
C:\Users\Admin\AppData\Local\Temp\rewok.exe"C:\Users\Admin\AppData\Local\Temp\rewok.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
PID:2384
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
28KB
MD579682717a4b47ed51f9e1d3a5988d2db
SHA1d8ef74df91942b8083ba308d4e4fbc59d7acdb36
SHA2568129a480000c26d47ef4aed43c0d7cb12ec07991cff5d2fdb53d3d2a9e7618c3
SHA512136d7a00be52c3549bf69c2136b02b0ae0f2eafee617c68980e20435d81738900614f340274eb5b5cb1a6f55f919b6aaca444047997d31093b1bbd4b5227aafd