Analysis
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max time kernel
150s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
03-04-2024 06:42
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-03_15d330369dcbb317ef7b9404d5822ef3_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-03_15d330369dcbb317ef7b9404d5822ef3_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-03_15d330369dcbb317ef7b9404d5822ef3_cryptolocker.exe
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Size
63KB
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MD5
15d330369dcbb317ef7b9404d5822ef3
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SHA1
b7dcc5dcf0b4d25561c914f6445f2c55fcea9a9a
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SHA256
c791c9d0151fe9c2a8047afdd4bcdb7f3847f60f2b3446a2f782a3c37ea29266
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SHA512
6fb798fdd8b7a2cb9f9a8c0ec34b194dd9828c88b4eb432a660fc5f8c4c8ee3fe25e696231241a8661dbf255631fce1e42919afede7e728a6c373a9eb1892d49
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEISuN:6j+1NMOtEvwDpjr8ox8UDE3y
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2624-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 \Users\Admin\AppData\Local\Temp\misid.exe CryptoLocker_rule2 behavioral1/memory/2624-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2660-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2660-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2624-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 \Users\Admin\AppData\Local\Temp\misid.exe CryptoLocker_set1 behavioral1/memory/2624-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2660-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2660-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
Processes:
resource yara_rule behavioral1/memory/2624-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress \Users\Admin\AppData\Local\Temp\misid.exe INDICATOR_EXE_Packed_MPress behavioral1/memory/2624-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2660-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2660-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
Processes:
misid.exepid process 2660 misid.exe -
Loads dropped DLL 1 IoCs
Processes:
2024-04-03_15d330369dcbb317ef7b9404d5822ef3_cryptolocker.exepid process 2624 2024-04-03_15d330369dcbb317ef7b9404d5822ef3_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
Processes:
2024-04-03_15d330369dcbb317ef7b9404d5822ef3_cryptolocker.exedescription pid process target process PID 2624 wrote to memory of 2660 2624 2024-04-03_15d330369dcbb317ef7b9404d5822ef3_cryptolocker.exe misid.exe PID 2624 wrote to memory of 2660 2624 2024-04-03_15d330369dcbb317ef7b9404d5822ef3_cryptolocker.exe misid.exe PID 2624 wrote to memory of 2660 2624 2024-04-03_15d330369dcbb317ef7b9404d5822ef3_cryptolocker.exe misid.exe PID 2624 wrote to memory of 2660 2624 2024-04-03_15d330369dcbb317ef7b9404d5822ef3_cryptolocker.exe misid.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-03_15d330369dcbb317ef7b9404d5822ef3_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-03_15d330369dcbb317ef7b9404d5822ef3_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
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Downloads
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\Users\Admin\AppData\Local\Temp\misid.exeFilesize
63KB
MD559989acb47b25acadc2f0ab61f70c750
SHA19317130da34803da1da3a72b4364d19473775fe8
SHA256aa6cd1c63ad52961be8c67dab9c75ea797a9d19b2f23435e7aa63eb7a15d1100
SHA512deae0f866715f1c7c9c39ff4d0ce88e276c7bf8416140c023babd0f5fd5bfea9afe02e07d5d040a92a1012b7e83c242b056c33490fc1aa6ab1abdcd915f4bfdc
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memory/2624-0-0x0000000000500000-0x000000000050F000-memory.dmpFilesize
60KB
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memory/2624-1-0x00000000002C0000-0x00000000002C6000-memory.dmpFilesize
24KB
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memory/2624-3-0x00000000002C0000-0x00000000002C6000-memory.dmpFilesize
24KB
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memory/2624-2-0x00000000002F0000-0x00000000002F6000-memory.dmpFilesize
24KB
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memory/2624-15-0x0000000000500000-0x000000000050F000-memory.dmpFilesize
60KB
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memory/2660-17-0x0000000000500000-0x000000000050F000-memory.dmpFilesize
60KB
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memory/2660-18-0x0000000000370000-0x0000000000376000-memory.dmpFilesize
24KB
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memory/2660-21-0x0000000000340000-0x0000000000346000-memory.dmpFilesize
24KB
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memory/2660-26-0x0000000000500000-0x000000000050F000-memory.dmpFilesize
60KB