Analysis
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max time kernel
150s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
11/06/2024, 02:29
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-11_5a46f698edc2dbf6876bb08e870883bf_cryptolocker.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-11_5a46f698edc2dbf6876bb08e870883bf_cryptolocker.exe
Resource
win10v2004-20240426-en
General
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Target
2024-06-11_5a46f698edc2dbf6876bb08e870883bf_cryptolocker.exe
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Size
51KB
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MD5
5a46f698edc2dbf6876bb08e870883bf
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SHA1
70744c6b57e18042caabe28c07310b45d46e822c
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SHA256
090f4016f80426f395c3607a0339788ef988cbc73e0b78737b79dd48a6152a14
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SHA512
a38c80f394312b1c2d64374901b80893d11acbd3c80c4450af2ee00da507aed2facb608339745b3008fdf004e497fe30f6f1a59a121fd47c7cde9ebb4e8a8b21
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPhqlcnvhx5/xFRY+iyyj:6j+1NMOtEvwDpjr8hhXy+iyyj
Malware Config
Signatures
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Detection of CryptoLocker Variants 6 IoCs
resource yara_rule behavioral1/memory/2340-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000c0000000146fc-11.dat CryptoLocker_rule2 behavioral1/memory/2340-13-0x0000000002840000-0x000000000284F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2520-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2340-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2520-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 6 IoCs
resource yara_rule behavioral1/memory/2340-0-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000c0000000146fc-11.dat CryptoLocker_set1 behavioral1/memory/2340-13-0x0000000002840000-0x000000000284F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2520-17-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2340-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2520-27-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 6 IoCs
resource yara_rule behavioral1/memory/2340-0-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000c0000000146fc-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2340-13-0x0000000002840000-0x000000000284F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2520-17-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2340-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2520-27-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2520 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2340 2024-06-11_5a46f698edc2dbf6876bb08e870883bf_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 2340 wrote to memory of 2520 2340 2024-06-11_5a46f698edc2dbf6876bb08e870883bf_cryptolocker.exe 28 PID 2340 wrote to memory of 2520 2340 2024-06-11_5a46f698edc2dbf6876bb08e870883bf_cryptolocker.exe 28 PID 2340 wrote to memory of 2520 2340 2024-06-11_5a46f698edc2dbf6876bb08e870883bf_cryptolocker.exe 28 PID 2340 wrote to memory of 2520 2340 2024-06-11_5a46f698edc2dbf6876bb08e870883bf_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-11_5a46f698edc2dbf6876bb08e870883bf_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-11_5a46f698edc2dbf6876bb08e870883bf_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2340 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2520
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
51KB
MD56bbcba0a3827e21b00fe5f2cc355ea91
SHA1cc8f40f9b551d0cd834032be60834b9203570b0c
SHA25625b53de36db1bba18d8f13bbcfc97d026b79e336efac1bad00169921736e584a
SHA51253d561e28f6498d70b2dcd1c9b8cb7ff0b6c9c5eeb98a90c12858fead96e8a0c26ed119050d4d5daff9b1afbb0b76bd015daf182e89e2d9603548060314881b8