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Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
21/05/2024, 05:23
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-21_cb367e4008a624c53e85f3873a6f6bfc_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-21_cb367e4008a624c53e85f3873a6f6bfc_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-05-21_cb367e4008a624c53e85f3873a6f6bfc_cryptolocker.exe
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Size
44KB
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MD5
cb367e4008a624c53e85f3873a6f6bfc
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SHA1
085638b906f73a6fff345a1a4cd9e96d0d4dc5ec
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SHA256
48a63229cb8fc011d664e7e19dbf66bdecff5c3cc030adc644a56ee0a16e0687
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SHA512
4735f18408fba8939d3d5ae2c9007299ce723667f2da8303bedba1d7b680fee866e41ad0dbc0a0a20ab7486193c8ed49646776f6095cb44cd20dcea10562a6a1
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SSDEEP
384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jo0nrlwfjDUIDw:bm74zYcgT/Ekn0ryfjvw
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2384-0-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b00000001226d-11.dat CryptoLocker_rule2 behavioral1/memory/2124-16-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2384-14-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2124-25-0x0000000008000000-0x000000000800D000-memory.dmp CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2124 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 2384 2024-05-21_cb367e4008a624c53e85f3873a6f6bfc_cryptolocker.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2384 wrote to memory of 2124 2384 2024-05-21_cb367e4008a624c53e85f3873a6f6bfc_cryptolocker.exe 28 PID 2384 wrote to memory of 2124 2384 2024-05-21_cb367e4008a624c53e85f3873a6f6bfc_cryptolocker.exe 28 PID 2384 wrote to memory of 2124 2384 2024-05-21_cb367e4008a624c53e85f3873a6f6bfc_cryptolocker.exe 28 PID 2384 wrote to memory of 2124 2384 2024-05-21_cb367e4008a624c53e85f3873a6f6bfc_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-21_cb367e4008a624c53e85f3873a6f6bfc_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-21_cb367e4008a624c53e85f3873a6f6bfc_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2384 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:2124
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
44KB
MD536ce88b272590a42b8abb158cf3a4d16
SHA1f5c5ccb356341334e5848af77ffab1969d3d54f1
SHA2565e2c8980859bda762de05bfafb2bd4803bf2f93e434144f1690ceea6f7c451cb
SHA512b4871bad56b36aa75997efdc502ef243295f65b028c385ab1a668ec028237560b71a62557ea25fe56f1fab1563050a6699fe0effe9260a11a33e6ce4120b9f5b