Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
02/06/2024, 00:51
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe
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Size
54KB
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MD5
cc4a0bde4033b49ca0ddab6c0a7a211b
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SHA1
d4d9fb4d526b5b58296f25eb0856f336cd758326
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SHA256
65e2cb1c8e6fd42cbe8c6da0cbaed42d7cf1a2d5d2d1c23a2abfdd09cfded3df
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SHA512
19a16e44d97bbcbcd4d9b34ce18a7d7adb49ffde42b308109e9a7cea569cd59240b72d7e124c7197052a978d468c5d61fa1c0ff732c78e42ca0d5b6ab9e26903
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPhqlcnvhx5/xFRkHI:6j+1NMOtEvwDpjr8hhXio
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1540-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x00090000000141a2-11.dat CryptoLocker_rule2 behavioral1/memory/2208-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1540-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2208-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/1540-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x00090000000141a2-11.dat CryptoLocker_set1 behavioral1/memory/2208-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1540-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2208-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/1540-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x00090000000141a2-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2208-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1540-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2208-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2208 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1540 2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_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 1540 wrote to memory of 2208 1540 2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe 28 PID 1540 wrote to memory of 2208 1540 2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe 28 PID 1540 wrote to memory of 2208 1540 2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe 28 PID 1540 wrote to memory of 2208 1540 2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-02_cc4a0bde4033b49ca0ddab6c0a7a211b_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1540 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2208
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
54KB
MD57d0819c1d1df11bfe75cfab6a1346f26
SHA11fa8216b8696725f241555b050eeaf4300d1d6d4
SHA2564ac2c2f9a73b233d4faecd29ef9f5e878849c10c465583c6c2d20c0a788bc347
SHA512bc804c6f0273bd3239f8dadf1d98ea2fa76a188baf49453eb3a2415f61bc27b79444dac20b412f46898f49190d0c54581b7a044f363e34008eac41f33e27ac3d