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Analysis
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max time kernel
148s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
17/02/2024, 07:51
Behavioral task
behavioral1
Sample
2024-02-17_c483ff063146e1efe12403550600ee69_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-02-17_c483ff063146e1efe12403550600ee69_cryptolocker.exe
Resource
win10v2004-20231222-en
General
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Target
2024-02-17_c483ff063146e1efe12403550600ee69_cryptolocker.exe
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Size
61KB
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MD5
c483ff063146e1efe12403550600ee69
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SHA1
cfe8ef09717ee1b99d37d2444730abbff7cac07f
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SHA256
5a71ec0fca52d36a0fa5e7aedae9b26af9bb1741b896af3dc24890197ab5730a
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SHA512
c5bf257d59d6819bd2ff53cabee3ea16f0f8745aea0ced57438e20cebd695b0abdb2336d8cfcf1f0cf28d42d65a20ecebf2b03877c36b46fc1d67994dfdbf1c7
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SSDEEP
768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mnVs:zj+soPSMOtEvwDpj4kpmeLmnS
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2856-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a0000000133a9-11.dat CryptoLocker_rule2 behavioral1/memory/2856-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3040-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/3040-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2856-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a0000000133a9-11.dat CryptoLocker_set1 behavioral1/memory/2856-15-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3040-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/3040-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral1/memory/2856-0-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/files/0x000a0000000133a9-11.dat UPX behavioral1/memory/2856-15-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/3040-16-0x0000000000500000-0x0000000000510000-memory.dmp UPX behavioral1/memory/3040-26-0x0000000000500000-0x0000000000510000-memory.dmp UPX -
Executes dropped EXE 1 IoCs
pid Process 3040 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2856 2024-02-17_c483ff063146e1efe12403550600ee69_cryptolocker.exe -
resource yara_rule behavioral1/memory/2856-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000a0000000133a9-11.dat upx behavioral1/memory/2856-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/3040-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/3040-26-0x0000000000500000-0x0000000000510000-memory.dmp upx -
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 2856 wrote to memory of 3040 2856 2024-02-17_c483ff063146e1efe12403550600ee69_cryptolocker.exe 28 PID 2856 wrote to memory of 3040 2856 2024-02-17_c483ff063146e1efe12403550600ee69_cryptolocker.exe 28 PID 2856 wrote to memory of 3040 2856 2024-02-17_c483ff063146e1efe12403550600ee69_cryptolocker.exe 28 PID 2856 wrote to memory of 3040 2856 2024-02-17_c483ff063146e1efe12403550600ee69_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-17_c483ff063146e1efe12403550600ee69_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-17_c483ff063146e1efe12403550600ee69_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2856 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:3040
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
62KB
MD5e9027ccb8a115f10f2e0303242e27ce0
SHA1c828100fcd092c776a8d59487401f8a4ede98677
SHA256b7c0d74435f8a64262ab1da4dfee00c90b1d4763f6e2c8ee83766033c17a46d0
SHA5123ca92ab8ee207c00a55bdc853de85ac4dadbab8232906aa7a22207795d060e8b701e93cb66e2476f1cbae9523d22c1fe6c72a82011ccac899cc7849665be9964