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Analysis
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max time kernel
148s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
22/04/2024, 04:42
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe
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Size
85KB
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MD5
014b5b5ac5593638252a793e39cfdbf3
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SHA1
27723cd962960d87c2ec0d2e12cd226a1e7ef0ba
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SHA256
311a2277a31e0db836fcd7166156595f2b6de482d5a5f9a7856a57703c39a2ea
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SHA512
d12e5c8bb72e4b5d9d075915893ecaab5a60a4346bb178a1e005ff663d6092396526629d6f4175ad35e584bb3878b204d5d5977d53e3ca111885403082b0657b
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SSDEEP
768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPtNw5CS95yFPnYcv:V6QFElP6n+gMQMOtEvwDpjyaLccVNl60
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral2/files/0x000300000001e970-12.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral2/files/0x000300000001e970-12.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-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation 2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe -
Executes dropped EXE 1 IoCs
pid Process 2940 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 1624 wrote to memory of 2940 1624 2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe 87 PID 1624 wrote to memory of 2940 1624 2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe 87 PID 1624 wrote to memory of 2940 1624 2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-22_014b5b5ac5593638252a793e39cfdbf3_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1624 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2940
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
85KB
MD5bae924c6ec44d9c313b82391dc295695
SHA156517247ece687f919889a8f7c80301b86c7230d
SHA256ad1cf95503467329d2b413ab1c7c246087f2d9bbbc94650901b91770705d6137
SHA512a2af1fe081b0357141a532265f60463f9eb083f023efe9fe6acf8a4402a8922c2337a3bbbc9a2739c2c2ece0010ac577d8b15eb8cc2ef7089e768b6dccc385ad