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Analysis
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max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
03/06/2024, 04:34
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-03_9d4548d999409ef407db7914acd5e75d_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-03_9d4548d999409ef407db7914acd5e75d_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-03_9d4548d999409ef407db7914acd5e75d_cryptolocker.exe
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Size
66KB
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MD5
9d4548d999409ef407db7914acd5e75d
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SHA1
837ae957e89770392bad0262b605c480f8d589cd
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SHA256
6ee6a14d1cabb4b02c90d7bdbe4a92ee90be55882ade675fb9c4be4e5664455b
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SHA512
db174c1fad11e6d321380f9e419ed8bb8b60ff550859393f49e352c0b9658effd20134d37060f802668b076a7affed942bde670ec209f2e9bc71ab4e6cce45f3
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SSDEEP
1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGyR5:TCjsIOtEvwDpj5HE/OUHnSMYs
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1460-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c000000012671-11.dat CryptoLocker_rule2 behavioral1/memory/1460-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2036-24-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2036-26-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/1460-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000c000000012671-11.dat CryptoLocker_set1 behavioral1/memory/1460-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2036-24-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2036-26-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2036 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1460 2024-06-03_9d4548d999409ef407db7914acd5e75d_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 1460 wrote to memory of 2036 1460 2024-06-03_9d4548d999409ef407db7914acd5e75d_cryptolocker.exe 28 PID 1460 wrote to memory of 2036 1460 2024-06-03_9d4548d999409ef407db7914acd5e75d_cryptolocker.exe 28 PID 1460 wrote to memory of 2036 1460 2024-06-03_9d4548d999409ef407db7914acd5e75d_cryptolocker.exe 28 PID 1460 wrote to memory of 2036 1460 2024-06-03_9d4548d999409ef407db7914acd5e75d_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-03_9d4548d999409ef407db7914acd5e75d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-03_9d4548d999409ef407db7914acd5e75d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1460 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2036
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
66KB
MD5fcc4c983ad2f22ffeb0c90cb5f09a598
SHA14129830353663e53b146ac5d59f2088db65126c6
SHA2569622dfad1d0334be4673edf98859f05a336cf7323ca4110e7da297c00afa53bc
SHA5124b8aae409dd72944ae1cb0fc5f35734a2013e1e1afb0d92b533714d8015374dccd152871c5c08ddccc052efa50a4a0641a9ad259ad05b62b3a5ecf6048b39e6c