Analysis
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max time kernel
149s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10/05/2024, 00:35
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-10_48f613a631ffc0f71faa44f890276318_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-10_48f613a631ffc0f71faa44f890276318_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-10_48f613a631ffc0f71faa44f890276318_cryptolocker.exe
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Size
45KB
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MD5
48f613a631ffc0f71faa44f890276318
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SHA1
9607c6dd24dc87e22fd86b530027fedd8aeae05e
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SHA256
2e452dcf0146439850e46f87a84df931fccde460c0b81b3aaa78362dfed54581
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SHA512
b6e9a66a5a02a20a4a245691fc26ce2b8a3c246982c457a0b8de7e894923c03ff55b676ebb911e28e2e2942614527879d42df5995b790db4f0d6b14de75770a3
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SSDEEP
768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPa:P6QFElP6k+MRQMOtEvwDpjBQpVXf
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1152-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b000000015a2d-11.dat CryptoLocker_rule2 behavioral1/memory/1152-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1680-18-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1680-27-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/1152-0-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000b000000015a2d-11.dat CryptoLocker_set1 behavioral1/memory/1152-16-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/1680-18-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 behavioral1/memory/1680-27-0x0000000000500000-0x000000000050B000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 1680 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 1152 2024-05-10_48f613a631ffc0f71faa44f890276318_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 1152 wrote to memory of 1680 1152 2024-05-10_48f613a631ffc0f71faa44f890276318_cryptolocker.exe 28 PID 1152 wrote to memory of 1680 1152 2024-05-10_48f613a631ffc0f71faa44f890276318_cryptolocker.exe 28 PID 1152 wrote to memory of 1680 1152 2024-05-10_48f613a631ffc0f71faa44f890276318_cryptolocker.exe 28 PID 1152 wrote to memory of 1680 1152 2024-05-10_48f613a631ffc0f71faa44f890276318_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-10_48f613a631ffc0f71faa44f890276318_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-10_48f613a631ffc0f71faa44f890276318_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1152 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:1680
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46KB
MD58f0f82f0756b0019394b75d98b37a96c
SHA18b84233199b1f652e4e4ea544e9998ca419f4495
SHA256b09339b70ecdc7274b8bef113052f38257d0c6ddca2d08af672fdb5f054cb60a
SHA51266757a8460d0c201018a561d727831acbd81f78ce62c382dede3a6ea818dac95b29332196232264d8cccb432ca03d6cdc3d9dca4362f60376dc790296d57b91a