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Analysis
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max time kernel
138s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
16/04/2024, 07:38
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe
Resource
win7-20240319-en
Behavioral task
behavioral2
Sample
2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe
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Size
75KB
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MD5
94c1d432b9ea1407f366c34640c0d0ac
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SHA1
72184af1429f4e6c635ae446729dc82fc498ce68
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SHA256
7e898c2f066b03a45b364fec955a5992e80875d8c11d78f1e678a66efea056da
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SHA512
1f3346932e799bca96e49a85734c213823cdc12022e8321eb2e0c9e8c5b01090603fa30ab05d0bd7b57f8146251156b73b81ab3aaf48533ea8fa01fc938e5255
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SSDEEP
1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUz:ZVxkGOtEvwDpjca3
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000900000002325f-13.dat CryptoLocker_rule2 -
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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation 2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 3128 misid.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 2252 wrote to memory of 3128 2252 2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe 91 PID 2252 wrote to memory of 3128 2252 2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe 91 PID 2252 wrote to memory of 3128 2252 2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-16_94c1d432b9ea1407f366c34640c0d0ac_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2252 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3128
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4420 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:81⤵PID:4684
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
75KB
MD548a715030283f1ff33619ac9698b2dc4
SHA124d6191307457ed89f8db244c67cb75dad669694
SHA256684c007f03555fb802071c97bd5b4a298ed67ff92ffeba06bcfb30554f7c0691
SHA512441fd46e35f91ec7fdc61698ae58cf3646d11b0a870fdd46119272c5fa83db7770d45cbf1f687a346dbc685928c16c04d15213457cb8fc13d04d14509f10125c