Analysis
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max time kernel
144s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
27/05/2024, 18:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-27_5adecc2116a063d3ef4f55e3c640ded6_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-05-27_5adecc2116a063d3ef4f55e3c640ded6_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-05-27_5adecc2116a063d3ef4f55e3c640ded6_cryptolocker.exe
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Size
49KB
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MD5
5adecc2116a063d3ef4f55e3c640ded6
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SHA1
129171a9d9527276042e79b161c31411e263403e
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SHA256
696338272fdbcbab1d0a1c89c8a66f16725738bc49fd14fe34d8f8598c3c33ea
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SHA512
93ad77574e4b7123764d26cf06f27f37d08ddef791de430f673087d1ddabbffb01cc8e96b9a311aa7861d2b171f58af0c398f056a6297bc6257b89b27a8a1079
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SSDEEP
768:xQz7yVEhs9+4uR1bytOOtEvwDpjWE6BLbjG9Rva/yYsm0L:xj+VGMOtEvwDpjy+viHs7L
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2492-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000e000000014698-11.dat CryptoLocker_rule2 behavioral1/memory/2492-13-0x0000000002480000-0x0000000002490000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2492-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2540-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2492-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000e000000014698-11.dat CryptoLocker_set1 behavioral1/memory/2492-13-0x0000000002480000-0x0000000002490000-memory.dmp CryptoLocker_set1 behavioral1/memory/2492-16-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2540-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2492-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000e000000014698-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2492-13-0x0000000002480000-0x0000000002490000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2492-16-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2540-26-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2540 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2492 2024-05-27_5adecc2116a063d3ef4f55e3c640ded6_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 2492 wrote to memory of 2540 2492 2024-05-27_5adecc2116a063d3ef4f55e3c640ded6_cryptolocker.exe 28 PID 2492 wrote to memory of 2540 2492 2024-05-27_5adecc2116a063d3ef4f55e3c640ded6_cryptolocker.exe 28 PID 2492 wrote to memory of 2540 2492 2024-05-27_5adecc2116a063d3ef4f55e3c640ded6_cryptolocker.exe 28 PID 2492 wrote to memory of 2540 2492 2024-05-27_5adecc2116a063d3ef4f55e3c640ded6_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-27_5adecc2116a063d3ef4f55e3c640ded6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-27_5adecc2116a063d3ef4f55e3c640ded6_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2492 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2540
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
49KB
MD50e35a29607a9b848c82bb470fbe66fab
SHA1cdc0438e430137dd2b5410ac57a14de669794e2f
SHA2561b0a13bb00337efe5c3273d2e59fe8580910746aa8856bdf5c7a93f206489f53
SHA51222e276be727c0bd256cf21631531b376d401ca1022afb855038fe046dc6eb21e674592e6dcd38b42e4473171e514fb18f9a2471c30abd372b21864bddd34cd0f