Analysis
- max time kernel
149s - max time network
150s - platform
windows7_x64 - resource
win7-20240215-en - resource tags
arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system - submitted
11/06/2024, 12:48
Static task
static1
3 signatures
Behavioral task
behavioral1
Sample
2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe
Resource
win7-20240215-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe
Resource
win10v2004-20240508-en
7 signatures
150 seconds
General
- Target 2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe
- Size 43KB
- Sample240611-p14ddaxdjg
- SHA256 5a57a9a7fb2241b3c396d7ba86d1c9f58d5475950c93a04863a1f4b9500dbb1c
- MD5 a93be013d2f62e81b4e20abd304cd7d8
- SHA1 adee48b24b7d46357c139ccee874ca0d13fb6557
- SHA512 ad6f9bf208d0bc7af90f9a47662471f5dfd00a47d8ffeda1da21f84f7f6a7f6606fa2e92c87b0cc0cd39ff31a5d415d2598afa9dd9141855e778a85c7c22c70d
- SSDEEP 768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvgpnY1n9L:m5nkFNMOtEvwDpjG8hgpY19L
- MD5 SHA1 SHA512 SSDEEP
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 4 IoCs
resource yara_rule behavioral1/memory/2348-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c00000001275b-11.dat CryptoLocker_rule2 behavioral1/memory/2348-16-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2272-26-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 - Detection of Cryptolocker Samples 2 IoCs
resource yara_rule behavioral1/memory/2348-16-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2272-26-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 - Detects executables built or packed with MPress PE compressor 4 IoCs
resource yara_rule behavioral1/memory/2348-0-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000c00000001275b-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2348-16-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2272-26-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress - Executes dropped EXE 1 IoCs
pid Process 2272 misid.exe - Loads dropped DLL 1 IoCs
pid Process 2348 2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2348 wrote to memory of 2272 2348 2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe 29 PID 2348 wrote to memory of 2272 2348 2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe 29 PID 2348 wrote to memory of 2272 2348 2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe 29 PID 2348 wrote to memory of 2272 2348 2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe 29
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2348 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2272
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path \Users\Admin\AppData\Local\Temp\misid.exe
- Size 43KB
- SHA256 69135b079efe8a91ce3bc3d09c6c5819054d478bf7a4efbaf0d53118d199da01
- MD5 2e371af32e232b0104c404846b82ba6d
- SHA1 f92a3bd7477d202db3f7f30cdb46ca85fb3c33c2
- SHA512 855980084117a6377962df2bf90836456baa4b68fb188649e12b59058564daf995b1c1e2ba9c72ec9c9258febda7c33147031670f46509cfe5d0e38778f695b1
- SSDEEP 768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvgpnY1n9VV:m5nkFNMOtEvwDpjG8hgpY19n
- MD5 SHA1 SHA512 SSDEEP