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Analysis
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max time kernel
132s -
max time network
142s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
12/02/2024, 20:33
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe
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Size
54KB
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MD5
df55cf0e5aa893e08b81a61df5ac114c
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SHA1
b97112ea098a6a904793f6451f891ed5c40dd755
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SHA256
54a144181f0bd513364b8999db018836ad3051cfcd1d22a1a625c0baa6fdbb4e
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SHA512
42fee0936b3df09035b97605328bf044a537f983f1066bc18a72b3819018462e145c678a94cd0b034e1ebf253134aa50804f82fa3180189feb7cb3b7940a3bd4
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SSDEEP
768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vaTiSfQaV2L0zNnm:X6QFElP6n+gJBMOtEvwDpjBtE1yILum
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000a00000001223b-13.dat CryptoLocker_rule2 -
Detection of Cryptolocker Samples 1 IoCs
resource yara_rule behavioral1/files/0x000a00000001223b-13.dat CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2760 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2120 2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_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 2120 wrote to memory of 2760 2120 2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe 28 PID 2120 wrote to memory of 2760 2120 2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe 28 PID 2120 wrote to memory of 2760 2120 2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe 28 PID 2120 wrote to memory of 2760 2120 2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-12_df55cf0e5aa893e08b81a61df5ac114c_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2120 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2760
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
54KB
MD59ae4ecab7cce36360baefcf119bbfcf5
SHA1a6ba43302a965cc3cdb8c5a0d7ef9c83f4dcc6ed
SHA256d950f5942460fda1187401ba1941d95d00b54a928beb836a0e43dc26fe0a286c
SHA51269d811b4190c7cd97d3e4b5678cfbf772853bb07cfbd55cb83d72d48d545f6cf0daab35e5e5359a54ca7a6b20ec3d26d8c1c94dcbdeb2fdae06f320ae4d3ed77