Analysis
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max time kernel
150s -
max time network
155s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
15-09-2024 02:35
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-15_2a5ae30c0dd1f0a1b1721c75d6dd7c3f_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-15_2a5ae30c0dd1f0a1b1721c75d6dd7c3f_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-15_2a5ae30c0dd1f0a1b1721c75d6dd7c3f_cryptolocker.exe
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Size
49KB
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MD5
2a5ae30c0dd1f0a1b1721c75d6dd7c3f
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SHA1
be116eb70e074bd3d9dcebf95b2c0a2892ddc2fa
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SHA256
455a45518914ff2a8bb5726c821fb656279a2a57297187f54d6d88fc1bcb6348
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SHA512
07c308dbb4512822ce4557f28ca125c347b1188f2b92ee218505282050853770c6e510e54aad6aec3600268a20eef6e683d0c9938a55cefc0aaa552acd0d541a
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SSDEEP
768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6D8jnPx9UnuDLlD+wj:bIDOw9a0Dwo3P1ojvUSD4PInyD5
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2748 lossy.exe -
Loads dropped DLL 1 IoCs
pid Process 2796 2024-09-15_2a5ae30c0dd1f0a1b1721c75d6dd7c3f_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 2024-09-15_2a5ae30c0dd1f0a1b1721c75d6dd7c3f_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language lossy.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2796 wrote to memory of 2748 2796 2024-09-15_2a5ae30c0dd1f0a1b1721c75d6dd7c3f_cryptolocker.exe 30 PID 2796 wrote to memory of 2748 2796 2024-09-15_2a5ae30c0dd1f0a1b1721c75d6dd7c3f_cryptolocker.exe 30 PID 2796 wrote to memory of 2748 2796 2024-09-15_2a5ae30c0dd1f0a1b1721c75d6dd7c3f_cryptolocker.exe 30 PID 2796 wrote to memory of 2748 2796 2024-09-15_2a5ae30c0dd1f0a1b1721c75d6dd7c3f_cryptolocker.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-15_2a5ae30c0dd1f0a1b1721c75d6dd7c3f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-15_2a5ae30c0dd1f0a1b1721c75d6dd7c3f_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2796 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2748
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
49KB
MD5972f9437f5efd3bd1c781da7cf8228f5
SHA12cd464f3c3085e603bb29ab31283b85c0577c98b
SHA256928926adeb3a92b7b7e2c1776519bc92bc81614162995088d2d3d6df533ac58c
SHA512736db47d0ea2052372f633fcf05b88b7524b4200ac869ed4f0e3921c70b271d369b5467e34cacf3036cd061c37f61bb9d5126f0a4e72a19bb90399e219fdd639