Analysis
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max time kernel
148s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
04-05-2024 04:38
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-04_59a69d3cdc90dda2a0468d1325bbe011_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-04_59a69d3cdc90dda2a0468d1325bbe011_cryptolocker.exe
Resource
win10v2004-20240419-en
General
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Target
2024-05-04_59a69d3cdc90dda2a0468d1325bbe011_cryptolocker.exe
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Size
31KB
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MD5
59a69d3cdc90dda2a0468d1325bbe011
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SHA1
16dd23650a1bce18532360a6b4992dca0fd6d4dd
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SHA256
c6e8a07f1b0581c238d278c96fbcd4bd94365518644a4e62ce2528fc64fb126d
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SHA512
f93b80aeebfb99372ce1dde079ff6eabe2c3265453da9921636555376f0f82ca62da7156a3ab28cb67f900055a4bedf10eb836d11d07dd5b9bbba5eb6ead975b
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SSDEEP
384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXvf:bG74zYcgT/Ekd0ryfjkf
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2248-0-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a00000001466c-11.dat CryptoLocker_rule2 behavioral1/memory/2012-16-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2248-14-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2012-26-0x0000000008000000-0x000000000800A000-memory.dmp CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2012 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 2248 2024-05-04_59a69d3cdc90dda2a0468d1325bbe011_cryptolocker.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2248 wrote to memory of 2012 2248 2024-05-04_59a69d3cdc90dda2a0468d1325bbe011_cryptolocker.exe 28 PID 2248 wrote to memory of 2012 2248 2024-05-04_59a69d3cdc90dda2a0468d1325bbe011_cryptolocker.exe 28 PID 2248 wrote to memory of 2012 2248 2024-05-04_59a69d3cdc90dda2a0468d1325bbe011_cryptolocker.exe 28 PID 2248 wrote to memory of 2012 2248 2024-05-04_59a69d3cdc90dda2a0468d1325bbe011_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-04_59a69d3cdc90dda2a0468d1325bbe011_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-04_59a69d3cdc90dda2a0468d1325bbe011_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2248 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:2012
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
31KB
MD5c9df4fa1bfa9b2abe250244a84aaf0f4
SHA10b80283841147bba79e6fb1cc7077b0bd1ec44e7
SHA2565bd21546a7811e4c181cd4af0bf1148b2e3a19509e807a8e42c5c756b3750a26
SHA51268982d122f20ee2754f000c22e84887e6b3315f37847bcf4f44c16b1e1f9d382ceef8932df58fcabcc9351582726518e2dba920198f947ab6aa664e8bfb30446