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Analysis
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max time kernel
129s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
02/06/2024, 04:22
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe
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Size
32KB
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MD5
0cdcea499cbc4213d03d417c9b7c3b63
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SHA1
b93f68693724f41a1fbef06fa3dceefa933eb2ac
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SHA256
2e7dbd7dedf740e6c56433556a8020ba6240ea083a1b4bee13d90be2f520d683
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SHA512
5e7256059c283fa8f33f819aabcd5b39acb25f200d6af7e5a68a77131201e6232a5b2da9036d43a372605f5931bf0de302029310ae4d97ab9823bc02e9d69210
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SSDEEP
384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6cJ3v7y:bAvJCYOOvbRPDEgXRcJu
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000a0000000233ea-12.dat CryptoLocker_rule2 -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation demka.exe -
Executes dropped EXE 1 IoCs
pid Process 4688 demka.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 216 wrote to memory of 4688 216 2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe 83 PID 216 wrote to memory of 4688 216 2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe 83 PID 216 wrote to memory of 4688 216 2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_0cdcea499cbc4213d03d417c9b7c3b63_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:216 -
C:\Users\Admin\AppData\Local\Temp\demka.exe"C:\Users\Admin\AppData\Local\Temp\demka.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
PID:4688
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
32KB
MD5979897bf147fe142e80c902798b6be25
SHA1ba00ffe8847eea6367541283666d719d09982a98
SHA2565f386a4c41613cc941e4debe49f86e5799a326096a4f2fd2db49f0d61de37f82
SHA512868d87d394e703f0162e3eef6d3e6775403e824bf82ef985489cbc8145514f252a0c799c897174054e11cb7370a305f81834a30db7ecc43fa407bf1fc3abbff6
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Filesize
186B
MD5ccde01689041ab3e60b8de0fb80057bb
SHA1a281294613466661d08de19126c4ab9c49fc5ba8
SHA256a1b51ac6421650119a77155bfb9a2ae2582310054332f67ab7fe27088900e39d
SHA51276d9ca84d1de2efaad266b6aa13634ed15da5dedfcd53d5cb6b91b7e64af50cfa6e769199036f20df22e52261903ba71a1f5b6ce0720f643bbdbabf60bdeae52