Analysis
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max time kernel
150s -
max time network
150s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
17/10/2024, 20:28
Behavioral task
behavioral1
Sample
2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe
Resource
win7-20240903-en
General
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Target
2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe
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Size
84KB
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MD5
390d53925e1b5a7d326067ed78cf7e6a
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SHA1
483e116d9fc5adfa6b4a4f5858ee2ff16f55f791
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SHA256
9d7a0670164d9499a38ab85d505d04958bb046d85f367f02dc0402639faac743
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SHA512
9bef7372b4a76318809b2c3d9c43e38db99ebedddf427d965d4293fbb12883378b096e8e0cd3f39df94c63b8a155305bc7bea871a74e620b7fcb87c366683863
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SSDEEP
1536:zj+soPSMOtEvwDpj4ktBl01hJl8QAPM8Ho6cRMf:zCsanOtEvwDpjJ
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2456 misid.exe -
Loads dropped DLL 1 IoCs
pid Process 2452 2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe -
resource yara_rule behavioral1/memory/2452-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x000c0000000122e4-11.dat upx behavioral1/memory/2452-14-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2456-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2456-26-0x0000000000500000-0x0000000000510000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language misid.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2452 wrote to memory of 2456 2452 2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe 31 PID 2452 wrote to memory of 2456 2452 2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe 31 PID 2452 wrote to memory of 2456 2452 2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe 31 PID 2452 wrote to memory of 2456 2452 2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-17_390d53925e1b5a7d326067ed78cf7e6a_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2452 -
C:\Users\Admin\AppData\Local\Temp\misid.exe"C:\Users\Admin\AppData\Local\Temp\misid.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2456
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
84KB
MD530cb60624790d622c8c7395de09e1386
SHA1287b7b84a1f46e8ffba050ad6a33dcf0179fd6ea
SHA2565f3bc58cb984d1bee9b45dfa789e15389083f10da468657e3b1fc2c6ea7b8d5f
SHA5123cd8b19a7010e63e36415d3dc2ff7fec2030bb19ef01d76e053113e15022e3537c1c90ff3ff8a56abb5cba4b6a3255f81dd127d79ec7d6516cd56bd9da74a3c8