Analysis
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max time kernel
148s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
02/06/2024, 22:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe
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Size
48KB
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MD5
feeb83f63a20472014a94f7f1473a720
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SHA1
2a02e4547e575b1ba357592891b9cfe44cd6aaac
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SHA256
ec352504445399f23945ff354713529f38267c6f7acf78970b120fb322f46454
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SHA512
ba75f2ab06329125315eb05fd61dc8ceae9ab332bfece4104c67c8c6272d63dda3ead0c1616c8b9cd0e20bea6d6c22c3743cca988925d6a6629c9ec0608da5f1
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SSDEEP
768:79inqyNR/QtOOtEvwDpjBKccJVODvy3Sp8Lv:79mqyNhQMOtEvwDpjBzckqSuT
Malware Config
Signatures
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Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2020-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b00000001227b-11.dat CryptoLocker_rule2 behavioral1/memory/2020-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2020-14-0x0000000001E60000-0x0000000001E6F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 4 IoCs
resource yara_rule behavioral1/memory/2020-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000b00000001227b-11.dat CryptoLocker_set1 behavioral1/memory/2020-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2020-14-0x0000000001E60000-0x0000000001E6F000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2884 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2020 2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2020 wrote to memory of 2884 2020 2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe 28 PID 2020 wrote to memory of 2884 2020 2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe 28 PID 2020 wrote to memory of 2884 2020 2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe 28 PID 2020 wrote to memory of 2884 2020 2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_feeb83f63a20472014a94f7f1473a720_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2884
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
49KB
MD548aad15686d327a056e364bd017840ed
SHA1972a96495adcca5801d83be5c9e18bce974f94fa
SHA2562250234a3aa2347ea5e0c12eff8af7a02aa65a1f72b8db590b48981dbe75dba3
SHA51289fb4b83b36f5c740da401b233f1ff2dc06a0074b63b15b4fcb4e3b2865aa981a4947c59d110232799afdf1d6fac23aeea14dc46bb4dfa37db32d6df0fd0b657