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Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
26/01/2024, 23:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe
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Size
60KB
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MD5
a3bc3ee592c417d1682798eef73bdf7f
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SHA1
3e9abd20e3601d07c11498ceb09e69366a290a16
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SHA256
bda6fbe3acdbc084a55f8dc2055ab44c0355c5e9fbec760ec526f10137a605ff
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SHA512
a5b09b2ba15180f6571f063be130d89791f0e5924fcafa6fd04beeea46fa6b982adbe6cdf688a431c38f1ecc11db788345f1d922ba937e9fb570a0f58c808b64
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SSDEEP
1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMw:TCjsIOtEvwDpj5HE/OUHnSMP
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/3024-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a00000001224c-11.dat CryptoLocker_rule2 behavioral1/memory/3024-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2116-17-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2116-26-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/3024-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a00000001224c-11.dat CryptoLocker_set1 behavioral1/memory/3024-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2116-17-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2116-26-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2116 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 3024 2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_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 3024 wrote to memory of 2116 3024 2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe 28 PID 3024 wrote to memory of 2116 3024 2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe 28 PID 3024 wrote to memory of 2116 3024 2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe 28 PID 3024 wrote to memory of 2116 3024 2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-26_a3bc3ee592c417d1682798eef73bdf7f_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3024 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2116
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
61KB
MD5d7f9ed9c557ad888a29d1e91b7d9fb10
SHA1762b432108db556ee503e36c97478fe786d97d4e
SHA256d5279dba53537a5983b0a1ded0eacb22e961ab998ab6c37fa27e06ab2af5abbc
SHA512f384d192ad45af7597ea9438a83e6f204a5220afa43baf33dc153adf08ed97f5e33539ac4566ed72a9ecc2f8eea35268246a037b004a73b205ee015c1a7f5bbd