Analysis
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max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
23-05-2024 16:48
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe
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Size
36KB
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MD5
050ad54e13613909c096fc9fe1eb9429
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SHA1
2eb861898a65577289b7d9a7d4a09ee047659d97
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SHA256
b8d18e315a3b3517bff697de4e950886802980223f25d8771859d98b3bb3126e
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SHA512
338f6832a899187164b93ff01c6e50c7f8be6b650c29bde3227d544d1d17a9650d65729db8132796bd9a37f7dd351a7642adc70fcc7fb5c20f318c942ba31c48
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SSDEEP
384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qAgmEzXKxA+uspNCu:bAvJCYOOvbRPDEgXRc+BAILYfN
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000c000000014228-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 1092 demka.exe -
Loads dropped DLL 1 IoCs
pid Process 2364 2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 demka.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 demka.exe -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 2364 2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe 1092 demka.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2364 wrote to memory of 1092 2364 2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe 28 PID 2364 wrote to memory of 1092 2364 2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe 28 PID 2364 wrote to memory of 1092 2364 2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe 28 PID 2364 wrote to memory of 1092 2364 2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-23_050ad54e13613909c096fc9fe1eb9429_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2364 -
C:\Users\Admin\AppData\Local\Temp\demka.exe"C:\Users\Admin\AppData\Local\Temp\demka.exe"2⤵
- Executes dropped EXE
- Modifies system certificate store
- Suspicious use of UnmapMainImage
PID:1092
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
37KB
MD5d45dfba22f60ad32384ab772c0cac002
SHA12fc004bdd5150962a6ca2266ed52b3f682de7b49
SHA256eae54f57d3f791317d6b7e2137bf7147ce6f13897f9501e5f93f1ff58893bdb4
SHA5125aabdf0ac914e3cd7496e9f788cd4d77359b31bf76c67efed66d37eb7281b23e35757e9ba19c3a1d6c5ef847d48049808911442be30933851f21a8a705d3a86d