Analysis
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max time kernel
111s -
max time network
111s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
08-01-2025 23:41
Behavioral task
behavioral1
Sample
b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe
Resource
win7-20240903-en
General
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Target
b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe
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Size
63KB
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MD5
b2406a5869c86a778542e30100450f20
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SHA1
c28c66e8540f8e586dd26be7d43c40734fec1cdb
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SHA256
b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1
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SHA512
0a1be9de11c2470e5ccd308631aec3255a41bddd715e04f261020b9b8b69365d25e9b476c563db99cb2aebe73890ed0fab41ab3e305a2c93468ca4a734f2f04e
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SSDEEP
1536:zoxBP0D61Oj3+5FdOa52C8pdo95j6hZ2MzNDCkrN:0PPUj3+5FMIn8To94wa7N
Malware Config
Extracted
sakula
www.polarroute.com
Signatures
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Sakula family
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Sakula payload 3 IoCs
resource yara_rule behavioral2/memory/868-9-0x0000000000400000-0x0000000000424000-memory.dmp family_sakula behavioral2/memory/3900-11-0x0000000000400000-0x0000000000424000-memory.dmp family_sakula behavioral2/memory/868-17-0x0000000000400000-0x0000000000424000-memory.dmp family_sakula -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe -
Executes dropped EXE 1 IoCs
pid Process 3900 MediaCenter.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MicroMedia = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\MediaCenter.exe" b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe -
resource yara_rule behavioral2/memory/868-0-0x0000000000400000-0x0000000000424000-memory.dmp upx behavioral2/files/0x000c000000023b8c-2.dat upx behavioral2/memory/868-9-0x0000000000400000-0x0000000000424000-memory.dmp upx behavioral2/memory/3900-11-0x0000000000400000-0x0000000000424000-memory.dmp upx behavioral2/memory/868-17-0x0000000000400000-0x0000000000424000-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 4 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 b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MediaCenter.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2928 cmd.exe 4888 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 4888 PING.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 868 b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 868 wrote to memory of 3900 868 b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe 83 PID 868 wrote to memory of 3900 868 b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe 83 PID 868 wrote to memory of 3900 868 b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe 83 PID 868 wrote to memory of 2928 868 b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe 99 PID 868 wrote to memory of 2928 868 b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe 99 PID 868 wrote to memory of 2928 868 b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe 99 PID 2928 wrote to memory of 4888 2928 cmd.exe 101 PID 2928 wrote to memory of 4888 2928 cmd.exe 101 PID 2928 wrote to memory of 4888 2928 cmd.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe"C:\Users\Admin\AppData\Local\Temp\b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:868 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3900
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\b8fd17cf3dad945379eb580381bddd94a2214c14be07e6eb3c9776c1ce69faa1N.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2928 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.13⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:4888
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Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
63KB
MD5949a93dbb5d8066d63d3a61741b6fe1e
SHA194ab593f14ab8d4c4bf11c5576d1f91f4a6563b4
SHA25659252ee376461ba370760ed39d5e1d58c24cdb59a3eab09f7a04df0bec41fff3
SHA51255fd7e0c7ef8ce3e4129ec058ffb200e2f6b0247087122ca38dc54aa1c7f1ff64c655d4caf199a35ec90754c1f1cc80de859e93583f0029237bf3e0105ba8978