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Analysis
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max time kernel
148s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
21/04/2024, 04:37
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe
Resource
win10v2004-20240412-en
General
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Target
2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe
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Size
50KB
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MD5
e26bc1dfc241a9e07246c097bd4b0d01
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SHA1
aa7c9ca9f0cce164fbcb737c0d02c83571a295bc
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SHA256
f8d616a273ee19f61e2f8fbd29d9ecfebdc7f3d48ef17d01d74eb79f6555dd44
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SHA512
f7eac205b9507db321d79a2bdac7ff710f19f66131104896e11d9fc870507982ab8d2202f0609ea324176e4fb912eff1e56e5f7483880de34f39d3ddf28e754f
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPhqlcnvhx5/xFRHnz9:6j+1NMOtEvwDpjr8hhX9Z
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/1740-2-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c00000001225d-15.dat CryptoLocker_rule2 behavioral1/memory/1740-14-0x0000000002320000-0x000000000232F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2716-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2716-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/1740-2-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000c00000001225d-15.dat CryptoLocker_set1 behavioral1/memory/1740-14-0x0000000002320000-0x000000000232F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2716-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2716-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/1740-2-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000c00000001225d-15.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/1740-14-0x0000000002320000-0x000000000232F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2716-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2716-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2716 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1740 2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_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 1740 wrote to memory of 2716 1740 2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe 28 PID 1740 wrote to memory of 2716 1740 2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe 28 PID 1740 wrote to memory of 2716 1740 2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe 28 PID 1740 wrote to memory of 2716 1740 2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-21_e26bc1dfc241a9e07246c097bd4b0d01_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1740 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2716
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
50KB
MD5ad54dbb17cc61edb6408fcc9495c5b67
SHA10dbed7bf5b7e848ae6d796baa830e39fb5928b83
SHA256e3e83ece5a6193e102302494331831fbed174b903fbc55069015940a6bcfa023
SHA512c54e9149d0b792b352be1c0e5d441a66831a79aecaebad45ba244b244abef381ad9e36df8d622558ed4216df12149e6e984b216a2b9d52385b14321c588a16f7