Analysis
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max time kernel
150s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
13-06-2024 03:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe
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Size
73KB
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MD5
4568ba52fc5b80a78838340ba159a9a1
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SHA1
b757e84736abfbd6a4ffe3878e47e5230767227b
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SHA256
4cdab9b47b6dbe7666f72b846dc067ad04e53688b9d0c144bab5d05f5cb0b5c3
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SHA512
54de3e88e3c02d4dd715acc3b996fb7c6cc4a4b6f752ff45ab33d1322d01e736ef9b46b6adb4ab1538c743fbde6d1d392a2eea49a847807c75710eeddc92367b
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SSDEEP
768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9zD:9Uj+AIMOtEvwDpjLizbR9XwzD
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000900000002351b-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000900000002351b-12.dat CryptoLocker_set1 -
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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation 2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 4408 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 3096 wrote to memory of 4408 3096 2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe 89 PID 3096 wrote to memory of 4408 3096 2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe 89 PID 3096 wrote to memory of 4408 3096 2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3096 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:4408
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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 --field-trial-handle=1304,i,2607710392823067546,4648797561512801463,262144 --variations-seed-version --mojo-platform-channel-handle=4456 /prefetch:81⤵PID:4804
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
74KB
MD5d3a87c075cb24a008aa0095906dcc306
SHA1d3451b90efca1b2a91ac834352cd3064606f8c8e
SHA2560cc35e17ddb65d239339961b2b5ed5ceb98875e498a15886587a2e22dfdde602
SHA51248a18f4c8b7215c02f101bd89df529068f5f700c450e682ecfe29f6ebc111e2dc0e9d74efaa13141658c7598b785a48f0b414a9afe45288fa455bd323ab06d32