Analysis
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max time kernel
148s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
01/06/2024, 18:26
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe
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Size
44KB
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MD5
57e1192772971955d10e95dfcd6768b4
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SHA1
cf4ba271897a5dfba654fcf511f14e5a393adcce
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SHA256
c6886864b5148cd35937f937cee42249a07895b4479d86eb459ca4a3e94f9a99
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SHA512
97c9ad9f6dd12272efb851ee2b3b718a3c274f1c915fb00cfeacae60df541de6049270b57fba4a90adbf54f318ce95ac05b66db9d3bc7d90cf0aa533c283756b
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Ha:X6QFElP6n+gJQMOtEvwDpjBmzDkWDta
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000b00000002339a-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000b00000002339a-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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2220 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 3392 wrote to memory of 2220 3392 2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe 84 PID 3392 wrote to memory of 2220 3392 2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe 84 PID 3392 wrote to memory of 2220 3392 2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3392 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2220
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD56ed73d504d1cb043f0769d5f035b8e14
SHA129ad9c432013e5f8386c39d2fe7b2db174858e64
SHA256b9563897e81d8275349232683ce91b2514ee77f3b46868a2e9c683daaefd1236
SHA5123ec63306a0ec353f0eca42b5f8515a8c39098c8654ae7e40fd1406d3e05f0184659190ef95509843f70d39c33544c23ccc76e441077e7cc76bd2aebb0a6f52df