Analysis
-
max time kernel
132s -
max time network
139s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
26/08/2024, 06:32
Behavioral task
behavioral1
Sample
2024-08-26_35a6f716acd755dc224f976dd0818fbc_cryptolocker.exe
Resource
win7-20240729-en
General
-
Target
2024-08-26_35a6f716acd755dc224f976dd0818fbc_cryptolocker.exe
-
Size
92KB
-
MD5
35a6f716acd755dc224f976dd0818fbc
-
SHA1
94d12d233f7f7ee1d1d042d97aba385deffeff90
-
SHA256
75ac117ec426ca5fe02ad86295598b9d63375e243c1d29d73efce9f365cac19a
-
SHA512
778d723ef9ab1674de5a3cd16398b4906a2877b6ff29b17350a6e9e9ba34f01108a4b7bbb3e73fc363b442f2d0dc8835f04924ed33722265c41f6b4caa27aac3
-
SSDEEP
1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAe/:n6a+1SEOtEvwDpjYYvQd2PG
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
pid Process 792 asih.exe -
Loads dropped DLL 1 IoCs
pid Process 2500 2024-08-26_35a6f716acd755dc224f976dd0818fbc_cryptolocker.exe -
resource yara_rule behavioral1/memory/2500-0-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/files/0x00080000000120fe-11.dat upx behavioral1/memory/792-16-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/2500-15-0x0000000000500000-0x0000000000510000-memory.dmp upx behavioral1/memory/792-26-0x0000000000500000-0x0000000000510000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
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 2024-08-26_35a6f716acd755dc224f976dd0818fbc_cryptolocker.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language asih.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2500 wrote to memory of 792 2500 2024-08-26_35a6f716acd755dc224f976dd0818fbc_cryptolocker.exe 30 PID 2500 wrote to memory of 792 2500 2024-08-26_35a6f716acd755dc224f976dd0818fbc_cryptolocker.exe 30 PID 2500 wrote to memory of 792 2500 2024-08-26_35a6f716acd755dc224f976dd0818fbc_cryptolocker.exe 30 PID 2500 wrote to memory of 792 2500 2024-08-26_35a6f716acd755dc224f976dd0818fbc_cryptolocker.exe 30
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-08-26_35a6f716acd755dc224f976dd0818fbc_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-26_35a6f716acd755dc224f976dd0818fbc_cryptolocker.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500 -
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:792
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
92KB
MD5345599072855b5714b312bb63efca419
SHA19016f4d0a7d3ed9431b8d0eaeb14cfb68595dbc8
SHA25641afc1dccea33f2a341955db8d5c4816a7be0d322d0fa87b33ed8fe4154c288e
SHA5128178cea7d43136673f538633c75850764c54de3cf464ba3330420934d5ba60c4dcf358fe8aa7233e8c502faa1d8ae02b1187afb553ac4360f5ccc991761ffdd9