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Analysis
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max time kernel
160s -
max time network
174s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10/03/2024, 01:45
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-10_48b043f5e822bec06cac1f7e94d10fb6_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-10_48b043f5e822bec06cac1f7e94d10fb6_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-10_48b043f5e822bec06cac1f7e94d10fb6_cryptolocker.exe
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Size
40KB
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MD5
48b043f5e822bec06cac1f7e94d10fb6
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SHA1
c2afe62bb81b6cf97811ddb26660f4faaee5d6b3
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SHA256
e0f2f3ff66adea72666265115f26d1b40b4d12ebf2d89220fcf2ee91d617ba2a
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SHA512
f92039e733525df3b80fb98cb99548c9247ca4cca05188d9a6bf616f2f547beee27a55b722e198ce4e1b1afe59597dc3263ac105fc0ddf9df0b1d6b495240b94
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SSDEEP
768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRnw:m5nkFNMOtEvwDpjG8hhXO
Malware Config
Signatures
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Detection of CryptoLocker Variants 7 IoCs
resource yara_rule behavioral1/memory/2788-1-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2788-14-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x0007000000012247-11.dat CryptoLocker_rule2 behavioral1/memory/2788-16-0x00000000023C0000-0x00000000023CE000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2680-17-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2680-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2788-29-0x00000000023C0000-0x00000000023CE000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2788-1-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2788-14-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2788-16-0x00000000023C0000-0x00000000023CE000-memory.dmp CryptoLocker_set1 behavioral1/memory/2680-17-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2680-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2788-1-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2788-14-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x0007000000012247-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2680-17-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2680-27-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2680 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2788 2024-03-10_48b043f5e822bec06cac1f7e94d10fb6_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 2788 wrote to memory of 2680 2788 2024-03-10_48b043f5e822bec06cac1f7e94d10fb6_cryptolocker.exe 28 PID 2788 wrote to memory of 2680 2788 2024-03-10_48b043f5e822bec06cac1f7e94d10fb6_cryptolocker.exe 28 PID 2788 wrote to memory of 2680 2788 2024-03-10_48b043f5e822bec06cac1f7e94d10fb6_cryptolocker.exe 28 PID 2788 wrote to memory of 2680 2788 2024-03-10_48b043f5e822bec06cac1f7e94d10fb6_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-10_48b043f5e822bec06cac1f7e94d10fb6_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-10_48b043f5e822bec06cac1f7e94d10fb6_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2788 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2680
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD58d6121615e79a9657c12b8abfc734687
SHA13f47492e72249cc49ec58bb22afb3b22e92c95fd
SHA256c2b325b6758941362c9f0f60b0a118b7880bffc7ba5e6c9a5cc886dd51b03a8e
SHA51220c0b0bada3428420518b42aa413aef454c053abb96cc3ce391e70456f9bbba86e4ec6814fc43f8525af5519e7b10be0b2a8a5f284fae65b7fcfab77f83d50bb