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Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
24/04/2024, 19:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe
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Size
39KB
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MD5
8a58b38d1e045190220723d460ba0ec7
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SHA1
e5ec1eb22ceead84f5d8dbb33184348b4eae8bfd
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SHA256
ec5652bc55deca41c6ff947f0ed42ae4028725331844ff86f1c815b6d44d6d9f
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SHA512
cbed0de15468e6fc1168e3b046087613cefab79fa995a69d5b27c8506a880626fd981e6592773ba8109196f2669d23db6804a268a6f0f1d23c0e8cdf01218a0a
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SSDEEP
768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axZmGRo:V6QFElP6n+gMQMOtEvwDpjyaYa/mmo
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b000000012248-10.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000b000000012248-10.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 3040 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2420 2024-04-24_8a58b38d1e045190220723d460ba0ec7_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 2420 wrote to memory of 3040 2420 2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe 28 PID 2420 wrote to memory of 3040 2420 2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe 28 PID 2420 wrote to memory of 3040 2420 2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe 28 PID 2420 wrote to memory of 3040 2420 2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-24_8a58b38d1e045190220723d460ba0ec7_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2420 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:3040
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
39KB
MD55ea1a6efa784b007a1b6d57331b216bb
SHA12f4df7a28228a7e23a11812b8d3dfc23f6f8e14e
SHA2562aa6259ac63bff96e3833859212ad6389f062eb90a5b1767dd014e3c47543a85
SHA512ab34b931e9c1621365f92ab73a9a1353af1c0b1309f9c653a8d06c2de9090f1e93c86d83d844e4988fee19ec1bc23487dc0c12de8ce085379358b7ed3ccb0292