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Analysis
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max time kernel
148s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
28/01/2024, 21:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-01-28_13d0a9e94b37fcebbb84ba5421206b26_cryptolocker.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
2024-01-28_13d0a9e94b37fcebbb84ba5421206b26_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-01-28_13d0a9e94b37fcebbb84ba5421206b26_cryptolocker.exe
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Size
41KB
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MD5
13d0a9e94b37fcebbb84ba5421206b26
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SHA1
6e5f4750480ec73aa7c486300b3b5b4b34284307
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SHA256
3f1ee5da19658eec62c0a07f45ea15381d23aa058ceace18ec3ba02f4e3f294f
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SHA512
f7b7f245c95f75eb9c52b2355c2690e1b97c9eb770e817b2085c0c253ed76ff5d8a3a2cf464b7d49b09732c1b9fb8ef0523fafab4b62ff0bad18f4c2832d67bb
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SSDEEP
768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+sJx:bgGYcA/53GADw8ClC
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x0007000000012281-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2616 hasfj.exe -
Loads dropped DLL 1 IoCs
pid Process 2044 2024-01-28_13d0a9e94b37fcebbb84ba5421206b26_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 2044 wrote to memory of 2616 2044 2024-01-28_13d0a9e94b37fcebbb84ba5421206b26_cryptolocker.exe 28 PID 2044 wrote to memory of 2616 2044 2024-01-28_13d0a9e94b37fcebbb84ba5421206b26_cryptolocker.exe 28 PID 2044 wrote to memory of 2616 2044 2024-01-28_13d0a9e94b37fcebbb84ba5421206b26_cryptolocker.exe 28 PID 2044 wrote to memory of 2616 2044 2024-01-28_13d0a9e94b37fcebbb84ba5421206b26_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-01-28_13d0a9e94b37fcebbb84ba5421206b26_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-01-28_13d0a9e94b37fcebbb84ba5421206b26_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2044 -
C:\Users\Admin\AppData\Local\Temp\hasfj.exe"C:\Users\Admin\AppData\Local\Temp\hasfj.exe"2⤵
- Executes dropped EXE
PID:2616
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
41KB
MD5243a54b3ac28cd8423c82bbf9b577bd5
SHA1ef1db573ccb4e29898f75d706d015993a243e884
SHA2562ca0dbd93257e6682cc46afecdc0b99feff875731df27c4c6d2a58751fed6268
SHA512913492aa6d8b4637e7d833de7aeb516880dda892a1cbf984196c5efdfa314f488705137f873dbaeaeb89713a1cf6e3d3232f17af7bdd11d249b22378dfd8532e