Analysis
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max time kernel
148s -
max time network
148s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
18-02-2024 12:35
Static task
static1
Behavioral task
behavioral1
Sample
2024-02-18_7e23282f4b4b2c2a320fcc115ac5dc6b_cryptolocker.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
2024-02-18_7e23282f4b4b2c2a320fcc115ac5dc6b_cryptolocker.exe
Resource
win10v2004-20231215-en
General
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Target
2024-02-18_7e23282f4b4b2c2a320fcc115ac5dc6b_cryptolocker.exe
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Size
39KB
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MD5
7e23282f4b4b2c2a320fcc115ac5dc6b
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SHA1
4f949fec39145bd58f6b5ade73e6d19aa7fd964b
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SHA256
cb4353f57d6aa4f51aff900a090e86e0d0c18f51df2d797fc1b4c8692d562b02
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SHA512
7cdccc47c783d47303ecbc59fa5ed30cdd68556f5092f99eb4fb9b446ea1e8bd926d233a5c91f71483e6a9a48c1aed64c17b8c31b6cc4558cfd8c08cc756dda2
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SSDEEP
768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh67/E:6j+1NMOtEvwDpjrRbE
Malware Config
Signatures
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Detection of CryptoLocker Variants 5 IoCs
resource yara_rule behavioral1/memory/2888-1-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/files/0x000a000000013a1a-11.dat CryptoLocker_rule2 behavioral1/memory/2216-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2888-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 behavioral1/memory/2216-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_rule2 -
Detection of Cryptolocker Samples 5 IoCs
resource yara_rule behavioral1/memory/2888-1-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/files/0x000a000000013a1a-11.dat CryptoLocker_set1 behavioral1/memory/2216-16-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2888-15-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 behavioral1/memory/2216-26-0x0000000000500000-0x000000000050F000-memory.dmp CryptoLocker_set1 -
Detects executables built or packed with MPress PE compressor 5 IoCs
resource yara_rule behavioral1/memory/2888-1-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/files/0x000a000000013a1a-11.dat INDICATOR_EXE_Packed_MPress behavioral1/memory/2216-16-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2888-15-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress behavioral1/memory/2216-26-0x0000000000500000-0x000000000050F000-memory.dmp INDICATOR_EXE_Packed_MPress -
Executes dropped EXE 1 IoCs
pid Process 2216 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2888 2024-02-18_7e23282f4b4b2c2a320fcc115ac5dc6b_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 2888 wrote to memory of 2216 2888 2024-02-18_7e23282f4b4b2c2a320fcc115ac5dc6b_cryptolocker.exe 28 PID 2888 wrote to memory of 2216 2888 2024-02-18_7e23282f4b4b2c2a320fcc115ac5dc6b_cryptolocker.exe 28 PID 2888 wrote to memory of 2216 2888 2024-02-18_7e23282f4b4b2c2a320fcc115ac5dc6b_cryptolocker.exe 28 PID 2888 wrote to memory of 2216 2888 2024-02-18_7e23282f4b4b2c2a320fcc115ac5dc6b_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-02-18_7e23282f4b4b2c2a320fcc115ac5dc6b_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-02-18_7e23282f4b4b2c2a320fcc115ac5dc6b_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2888 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
PID:2216
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
39KB
MD55b53dbf4bcb7eaa2f356478e9c85e7cd
SHA14157b9c33241cf0b8782dca49345b5346648d5a7
SHA25667a57bb5f77ded38c9287489cd4e2279abb906bd1221c37f3d3a97aff2737c1c
SHA512becc319eb0a8d64a34cae4044ff275520b65de29bbb3fdd436777e2ab49f20bad26f9438b31dafa8507817ecf9466d80771444861ca645058613343d4b3193da