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Analysis
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max time kernel
149s -
max time network
153s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
10/03/2024, 20:26
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-10_6d60af0833f1f57d75a3be4ef6c688d5_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-10_6d60af0833f1f57d75a3be4ef6c688d5_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-03-10_6d60af0833f1f57d75a3be4ef6c688d5_cryptolocker.exe
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Size
40KB
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MD5
6d60af0833f1f57d75a3be4ef6c688d5
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SHA1
9727a03b1548ede3cd406d4ff79cc9152658fca5
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SHA256
d17fb97cf96b3631d11760a55d5c8fa43aaaa52d3bfd9dc0fc864029978455ec
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SHA512
5439b84200e2e4c779740e39680888cf1ade55ef64308aeaffd2279ac49b8b00993bf1cb77ec2d1cabf6a1eff44bb4471a577a535a4b87c6c1ea6e87cd15b5e5
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SSDEEP
768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRQM:m5nkFNMOtEvwDpjG8hhX6M
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2784-0-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000b00000001224c-11.dat CryptoLocker_rule2 behavioral1/memory/2784-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2784-13-0x0000000001E20000-0x0000000001E2E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2900-18-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2900-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/2784-15-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2900-18-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 behavioral1/memory/2900-27-0x0000000000500000-0x000000000050E000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral1/memory/2784-0-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000b00000001224c-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2784-15-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2784-13-0x0000000001E20000-0x0000000001E2E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2900-18-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2900-27-0x0000000000500000-0x000000000050E000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2900 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2784 2024-03-10_6d60af0833f1f57d75a3be4ef6c688d5_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 2784 wrote to memory of 2900 2784 2024-03-10_6d60af0833f1f57d75a3be4ef6c688d5_cryptolocker.exe 28 PID 2784 wrote to memory of 2900 2784 2024-03-10_6d60af0833f1f57d75a3be4ef6c688d5_cryptolocker.exe 28 PID 2784 wrote to memory of 2900 2784 2024-03-10_6d60af0833f1f57d75a3be4ef6c688d5_cryptolocker.exe 28 PID 2784 wrote to memory of 2900 2784 2024-03-10_6d60af0833f1f57d75a3be4ef6c688d5_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-10_6d60af0833f1f57d75a3be4ef6c688d5_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-10_6d60af0833f1f57d75a3be4ef6c688d5_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2784 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2900
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD56c27c52f8618019ea44662f3e97de0d6
SHA14901dc9706a343c2963e3e88381d7eea8f05d534
SHA256ba27cb5e7d4d1ded797de4b3e5fdd9ce83f21191911067e55ee5d2bd5baa7715
SHA5126ee2ba8244aa5bcd9044aaca4054430133f0f335bf52eed04354e6f2772e89cd8fb4156e591079196da42e7ddafc073a9f14806f608d64a4fd23bbc168f34574