Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
19/09/2024, 03:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-19_1e12f98e353b212a9681a5e0a37ab6a0_cryptolocker.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-19_1e12f98e353b212a9681a5e0a37ab6a0_cryptolocker.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-19_1e12f98e353b212a9681a5e0a37ab6a0_cryptolocker.exe
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Size
31KB
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MD5
1e12f98e353b212a9681a5e0a37ab6a0
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SHA1
c098d18072c53e45a9c21c34e4ae3aef62a2901f
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SHA256
141080a294877cd17d386a760b5e2358e4877e98bdd6fb611011b50eff9c06d9
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SHA512
981f6a641d4d857fd423d6ba0c619245303a5dba5be7786f1ff46dc5f4647052b2478b1a2ac5c37a9f6a7fcbbd9b39e9117b002afac60bb0cd9f3123cf3c71a1
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SSDEEP
384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUAweh:bG74zYcgT/Ekd0ryfjWeh
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation 2024-09-19_1e12f98e353b212a9681a5e0a37ab6a0_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 5048 hasfj.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 2024-09-19_1e12f98e353b212a9681a5e0a37ab6a0_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language hasfj.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1564 wrote to memory of 5048 1564 2024-09-19_1e12f98e353b212a9681a5e0a37ab6a0_cryptolocker.exe 84 PID 1564 wrote to memory of 5048 1564 2024-09-19_1e12f98e353b212a9681a5e0a37ab6a0_cryptolocker.exe 84 PID 1564 wrote to memory of 5048 1564 2024-09-19_1e12f98e353b212a9681a5e0a37ab6a0_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-19_1e12f98e353b212a9681a5e0a37ab6a0_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-19_1e12f98e353b212a9681a5e0a37ab6a0_cryptolocker.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1564 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5048
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
31KB
MD583dfb03169639f212802f413ed481fd0
SHA17f3425348d2db6fc613bd666ef0c7745607f13ae
SHA25672ee02a4caf69b3a26b471af5729509dd803a0bafc12084be718a1af4bd26350
SHA5121f41917693bd15f2fddf07b07731d9ca0210e6117790c1a5b4b8f8b85433b2513867187cfedbc0815a97f328487e4c036d929c3f320f3ed9fb37827dd2cb35bf