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Analysis
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max time kernel
149s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
04/05/2024, 12:27
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-04_2e7b040f1026805ec825f4b74d435df4_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-05-04_2e7b040f1026805ec825f4b74d435df4_cryptolocker.exe
Resource
win10v2004-20240419-en
General
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Target
2024-05-04_2e7b040f1026805ec825f4b74d435df4_cryptolocker.exe
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Size
39KB
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MD5
2e7b040f1026805ec825f4b74d435df4
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SHA1
5207efeac9d3fcf9f9bab90c3755c9f9ab55bb39
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SHA256
3fb1f3173d00a446df749369af4427bf730bdd8e20cd44953100db4f36645096
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SHA512
5d93342ec31bc4f0fd668fe4ea64890a8fdeb6456392b5c5edae3f2920b09ce70a627ff04b884a1f0b7bb019a27a9e440aedc65227c12ba934a0ce3a0b50ab2f
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SSDEEP
768:bA74zYcgT/Ekd0ryfjPIunqpeNswmxT4HmxXR:bA6YcA/X6G0W1BGBR
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000b000000015c3d-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2388 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 2884 2024-05-04_2e7b040f1026805ec825f4b74d435df4_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 2884 wrote to memory of 2388 2884 2024-05-04_2e7b040f1026805ec825f4b74d435df4_cryptolocker.exe 28 PID 2884 wrote to memory of 2388 2884 2024-05-04_2e7b040f1026805ec825f4b74d435df4_cryptolocker.exe 28 PID 2884 wrote to memory of 2388 2884 2024-05-04_2e7b040f1026805ec825f4b74d435df4_cryptolocker.exe 28 PID 2884 wrote to memory of 2388 2884 2024-05-04_2e7b040f1026805ec825f4b74d435df4_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-04_2e7b040f1026805ec825f4b74d435df4_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-04_2e7b040f1026805ec825f4b74d435df4_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2884 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:2388
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
40KB
MD5938696cf6c8abfa20ece8105d34239e4
SHA172dc7813eea1a8c9de55e8068fb1139ebba782cd
SHA2563c71a7bdf2cf8e4e8c18bb08b24f4787180740a8d0a3fb094aac795ea6e340fa
SHA512e4a57d14298b043151c970466b973712dffdf3899a194bc8efaca72cdeb56214e7b7a3854c75affcfd5e08c5245860677501c28e3a49c83ae7dc38aba7d5b19d