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Analysis
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max time kernel
170s -
max time network
181s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
09/03/2024, 14:37
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-09_7557444da51109f280e227112ee1adca_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-09_7557444da51109f280e227112ee1adca_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-09_7557444da51109f280e227112ee1adca_cryptolocker.exe
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Size
41KB
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MD5
7557444da51109f280e227112ee1adca
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SHA1
edfb186310ce6ec48f94d3639ba76797a5b96fd4
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SHA256
b4bff1381c0e4823bf4feab6361912c96d72e7b969295be3a026ddeb8c50cbb3
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SHA512
1d7317fdc5ee9c7a21e27c45cf8a7ae6f37dc6e043f26a9678baf54019debe319dc49d2a974bf477db2d8e22dbad9262c18d0f941e2207ac5b6a0f15338c25a1
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SSDEEP
768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8POKi:bIDOw9a0Dwo3P1ojvUSDhE
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b000000012267-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 3024 lossy.exe -
Loads dropped DLL 1 IoCs
pid Process 2892 2024-03-09_7557444da51109f280e227112ee1adca_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 2892 wrote to memory of 3024 2892 2024-03-09_7557444da51109f280e227112ee1adca_cryptolocker.exe 27 PID 2892 wrote to memory of 3024 2892 2024-03-09_7557444da51109f280e227112ee1adca_cryptolocker.exe 27 PID 2892 wrote to memory of 3024 2892 2024-03-09_7557444da51109f280e227112ee1adca_cryptolocker.exe 27 PID 2892 wrote to memory of 3024 2892 2024-03-09_7557444da51109f280e227112ee1adca_cryptolocker.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-09_7557444da51109f280e227112ee1adca_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-09_7557444da51109f280e227112ee1adca_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Users\Admin\AppData\Local\Temp\lossy.exe"C:\Users\Admin\AppData\Local\Temp\lossy.exe"2⤵
- Executes dropped EXE
PID:3024
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD5fcd803a0d1caf3ec03ab8dd1c262acc4
SHA1a96448359ee0fc4d428025eadb7c92e1a0a061be
SHA2561a8420497f2531f705acbefebc8876b04e48980b0e391e3d0bb716e76bcc9fd6
SHA512e37f791b40a91ce188369ead5c96880b3b06533d12924b3f927ef75c4ba83893119dfa03d64b2f611188d3299101f49c0a7b19de4ff2a00087b8f620789f1473