Analysis
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max time kernel
149s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
01/06/2024, 18:26
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe
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Size
48KB
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MD5
54ccc81a7970aea370efe1fa08b304bc
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SHA1
68eab3df4bd54e0f48d1a48124dcda5ef5e530b0
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SHA256
59d43c2b92a4468250f47ff3a7ad3fae4e373b52738cfe996f868cd5cde93873
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SHA512
fc2ffafcfee3e574fe9c5d0fa3aa39356adb76b30b877bde656a27129e3dc399713488750c7e1dcff54e15dd6cc9c28ee1d4f5d7fcbbc3f85b43baba0df4cfe6
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SSDEEP
768:79inqyNR/QtOOtEvwDpjBKccJVODvy3Sp8LI:79mqyNhQMOtEvwDpjBzckqSuk
Malware Config
Signatures
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Detection of CryptoLocker Variants 3 IoCs
resource yara_rule behavioral1/memory/2240-8-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0009000000012280-11.dat CryptoLocker_rule2 behavioral1/memory/2920-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/2240-8-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x0009000000012280-11.dat CryptoLocker_set1 behavioral1/memory/2920-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Executes dropped EXE 1 IoCs
pid Process 2920 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2240 2024-06-01_54ccc81a7970aea370efe1fa08b304bc_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 2240 wrote to memory of 2920 2240 2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe 28 PID 2240 wrote to memory of 2920 2240 2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe 28 PID 2240 wrote to memory of 2920 2240 2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe 28 PID 2240 wrote to memory of 2920 2240 2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
PID:2920
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
49KB
MD5171e99d82ad7ac6c97fcf4cb23850cdb
SHA1fe34b9bb42ae690ad8a147fd48ba124b73758fd9
SHA256884355d6ca0ec8af04be686b0a3ca3e5c2d2a6f750c9a51a28bb6727ed07769d
SHA512102af9e4043c90fc2621211ee7001579d5b159f1ca9df504a18f373cf20c2bac2730f010e2f6071b9c94d839cf450955560be3521f91b7123a1eef96e2bc6a69