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Analysis
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max time kernel
150s -
max time network
141s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
19/04/2024, 12:31
Static task
static1
Behavioral task
behavioral1
Sample
2024-04-19_32e9b8cbc7e3d9d25b573e011f434daa_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-04-19_32e9b8cbc7e3d9d25b573e011f434daa_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-04-19_32e9b8cbc7e3d9d25b573e011f434daa_cryptolocker.exe
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Size
40KB
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MD5
32e9b8cbc7e3d9d25b573e011f434daa
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SHA1
b230309db674dd5aaed691c97fba00cb20bcb140
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SHA256
48a31191d917171e07aa35055462c4f1efa318843f557192ecf7ed19aa6f2aa1
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SHA512
abd7fe5eaa6a4c8d866384de53b66f7d87e954ac532f3478e0b73b8be9ee47d0d5e7ff2b2bb40acf2549aecbd537df0c3f8d2d86c9f94e560848006e78cfdfd7
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SSDEEP
768:XS5nQJ24LR1bytOOtEvwDpj66BLbjG9Rva/yYsZp:i5nkFGMOtEvwDpjR+viHs3
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/1652-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000012254-11.dat CryptoLocker_rule2 behavioral1/memory/1652-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1172-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1652-14-0x0000000001E70000-0x0000000001E7F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/1172-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 3 IoCs
resource yara_rule behavioral1/memory/1652-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1172-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/1172-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral1/memory/1652-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000a000000012254-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/1652-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1172-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1652-14-0x0000000001E70000-0x0000000001E7F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/1172-27-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 1172 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 1652 2024-04-19_32e9b8cbc7e3d9d25b573e011f434daa_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 1652 wrote to memory of 1172 1652 2024-04-19_32e9b8cbc7e3d9d25b573e011f434daa_cryptolocker.exe 28 PID 1652 wrote to memory of 1172 1652 2024-04-19_32e9b8cbc7e3d9d25b573e011f434daa_cryptolocker.exe 28 PID 1652 wrote to memory of 1172 1652 2024-04-19_32e9b8cbc7e3d9d25b573e011f434daa_cryptolocker.exe 28 PID 1652 wrote to memory of 1172 1652 2024-04-19_32e9b8cbc7e3d9d25b573e011f434daa_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-04-19_32e9b8cbc7e3d9d25b573e011f434daa_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-19_32e9b8cbc7e3d9d25b573e011f434daa_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1652 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:1172
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
40KB
MD5386a351674d40fe98a284dd08b824295
SHA1f6db18e04f09f008b36388f16d48832630b39acf
SHA256c41fd9fad50e5f0d6f7d1f44a69e787b6a2bbc45fc499a4b52320d32affe3787
SHA512f00716bec8bee1a9ee91c9421ea958bb42142ca17f95c71eb868be4b1907ed747826b1607cafc151227327b70f1bc9a04e2ebae1494e9fccda636c6586338c73