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Analysis
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max time kernel
146s -
max time network
161s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
13/10/2023, 20:41
Static task
static1
Behavioral task
behavioral1
Sample
2023-08-25_ecc2662666d58f349a067e4cea7f45a0_cryptolocker_JC.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
2023-08-25_ecc2662666d58f349a067e4cea7f45a0_cryptolocker_JC.exe
Resource
win10v2004-20230915-en
General
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Target
2023-08-25_ecc2662666d58f349a067e4cea7f45a0_cryptolocker_JC.exe
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Size
53KB
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MD5
ecc2662666d58f349a067e4cea7f45a0
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SHA1
bffa4bd3724ee49b54bb6885ff35f01248d1cad7
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SHA256
d2ea633ff2c53d49406fb9741715ee80b83ba043ac62bdf0047f44a31b4b6911
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SHA512
b0a9c10d14c35ed47f0006e82b64d53ecfed68b2b6676f3f35976ab938fc19d0e3a1e31f6eed771463b13dd96c9a7216b5978227e0ca3b7458193e460945e899
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SSDEEP
1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61E:BbdDmjr+OtEvwDpjMu
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-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation 2023-08-25_ecc2662666d58f349a067e4cea7f45a0_cryptolocker_JC.exe -
Executes dropped EXE 1 IoCs
pid Process 2308 asih.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4576 wrote to memory of 2308 4576 2023-08-25_ecc2662666d58f349a067e4cea7f45a0_cryptolocker_JC.exe 87 PID 4576 wrote to memory of 2308 4576 2023-08-25_ecc2662666d58f349a067e4cea7f45a0_cryptolocker_JC.exe 87 PID 4576 wrote to memory of 2308 4576 2023-08-25_ecc2662666d58f349a067e4cea7f45a0_cryptolocker_JC.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\2023-08-25_ecc2662666d58f349a067e4cea7f45a0_cryptolocker_JC.exe"C:\Users\Admin\AppData\Local\Temp\2023-08-25_ecc2662666d58f349a067e4cea7f45a0_cryptolocker_JC.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4576 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2308
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
53KB
MD5af40b74be106c3a54f0f9c9d39443655
SHA120f7fc7f0691baa3930c3d3ded1d0a03bf28efcc
SHA256fc483671c107f90d2498ae44c2693c43b5c8aedbfaf26b25ddd0e5fc8cb8ca1d
SHA5120cf5d1a467afd8ae9ae643b1cac187152d1823a1c70609d91e48542ddf4e58bc75ce753ae2b2ccfeba1e05ffb4750812a9702867527eace85b979ce6832fd260
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Filesize
53KB
MD5af40b74be106c3a54f0f9c9d39443655
SHA120f7fc7f0691baa3930c3d3ded1d0a03bf28efcc
SHA256fc483671c107f90d2498ae44c2693c43b5c8aedbfaf26b25ddd0e5fc8cb8ca1d
SHA5120cf5d1a467afd8ae9ae643b1cac187152d1823a1c70609d91e48542ddf4e58bc75ce753ae2b2ccfeba1e05ffb4750812a9702867527eace85b979ce6832fd260
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Filesize
53KB
MD5af40b74be106c3a54f0f9c9d39443655
SHA120f7fc7f0691baa3930c3d3ded1d0a03bf28efcc
SHA256fc483671c107f90d2498ae44c2693c43b5c8aedbfaf26b25ddd0e5fc8cb8ca1d
SHA5120cf5d1a467afd8ae9ae643b1cac187152d1823a1c70609d91e48542ddf4e58bc75ce753ae2b2ccfeba1e05ffb4750812a9702867527eace85b979ce6832fd260