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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
06/03/2024, 06:44
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-06_e98251005d374715369a557580d06b2d_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-06_e98251005d374715369a557580d06b2d_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-03-06_e98251005d374715369a557580d06b2d_cryptolocker.exe
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Size
95KB
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MD5
e98251005d374715369a557580d06b2d
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SHA1
0cad6bd961aea8300a687ac9bdee60d99985a812
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SHA256
210edff17e64d8b7cd1d0a62ecc12a54bf1ff24077736d97748343ac93fc817c
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SHA512
d3b5562b2909225cdc512b4a9d0bfe7eda240268f3dc5e5c2c78c8029bf513be7a40434600957e537eaea26f5a7f37559430f64e3616d7c4008c3ba92ac14a82
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SSDEEP
768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWNa9mktJvfh:xj+VGMOtEvwDpjubwQEIiVmk1
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/files/0x000a000000012240-25.dat CryptoLocker_rule2 behavioral1/memory/2932-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2248-16-0x00000000021E0000-0x00000000021F0000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2248-14-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2248-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2932-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/files/0x000a000000012240-25.dat CryptoLocker_set1 behavioral1/memory/2932-17-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2248-14-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2248-0-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 behavioral1/memory/2932-26-0x0000000000500000-0x0000000000510000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/files/0x000a000000012240-25.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2932-17-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2248-14-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2248-0-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2932-26-0x0000000000500000-0x0000000000510000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2932 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2248 2024-03-06_e98251005d374715369a557580d06b2d_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 2248 wrote to memory of 2932 2248 2024-03-06_e98251005d374715369a557580d06b2d_cryptolocker.exe 28 PID 2248 wrote to memory of 2932 2248 2024-03-06_e98251005d374715369a557580d06b2d_cryptolocker.exe 28 PID 2248 wrote to memory of 2932 2248 2024-03-06_e98251005d374715369a557580d06b2d_cryptolocker.exe 28 PID 2248 wrote to memory of 2932 2248 2024-03-06_e98251005d374715369a557580d06b2d_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-06_e98251005d374715369a557580d06b2d_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-06_e98251005d374715369a557580d06b2d_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2248 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2932
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
95KB
MD5b2a38c1081255283c89eedb703c79a7f
SHA10c3801deb93979862cfd0a96fea8ad22e388a172
SHA256b55ee78e28c433c092204d665f6d8acde937e1dafab2e228db48b79a3a82d3bc
SHA512ec798462c67c36253a5d529ebe6a0dc5cb109fe40ac67cf2ac5bba092ec5797f438baf0814007bc30f7a0c8e5c79f33873e59ca60f35d65c9a04f31ea9f600bb