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Analysis
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max time kernel
147s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10/06/2024, 10:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe
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Size
71KB
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MD5
0af184dc6d2b5c1a1ea944d7d635fb3b
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SHA1
738aec0b7c6fa6186264b082f543d22c64046f18
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SHA256
c281edbcf4d90093063794de02d2b3bad397eea3d977ff98307de773dc54b425
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SHA512
fc86d679f9138cd8171f33642ff27edf381163c18997ebfc7fcd058f4b9d77b2d7ff218e2b3e892f09a6f8ca07896fe419cb31b06c370455cae33aa4e48580b8
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SSDEEP
1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZO2:DW60sllyWOtEvwDpjwF85V
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/1712-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000d0000000153cf-11.dat CryptoLocker_rule2 behavioral1/memory/2504-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1712-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/1712-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000d0000000153cf-11.dat CryptoLocker_set1 behavioral1/memory/2504-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/1712-15-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2504 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 1712 2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1712 wrote to memory of 2504 1712 2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe 28 PID 1712 wrote to memory of 2504 1712 2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe 28 PID 1712 wrote to memory of 2504 1712 2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe 28 PID 1712 wrote to memory of 2504 1712 2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-10_0af184dc6d2b5c1a1ea944d7d635fb3b_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1712 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2504
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
71KB
MD5c2da6cf1642b26c9e4eaa04706a7010e
SHA13dfe72657331d8a4de8748f2722592bb61cb1ae7
SHA2563ca6e8320fca4cd2ef3241aee5a678d33c26f800a0d788641d0deda50cbecb0f
SHA512b79fd7b059b4525e7e7ab72544a8f9c517920ead0f59dd1960868d28e0b7b13b99354ba560ab6b7f71c67f4d8248ea97da23cc233de8c315ee3343d66504d4da