Analysis
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max time kernel
133s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-01-2025 22:48
Behavioral task
behavioral1
Sample
3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe
Resource
win7-20240903-en
General
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Target
3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe
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Size
140KB
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MD5
0272df5ce729c158894c2a4c1c5381e9
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SHA1
ad28822acea517a30d45db01df0b3ba8ab213e6c
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SHA256
3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042
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SHA512
398d66afa58a61c5687097678e881896b32389bfb49fbc12cc262abc0f44b22cc5bad411ac0d9a8a250357b74a61df6af7ba11ae380ba3d5f512bad4fba1130a
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SSDEEP
1536:6QFl29mEkE0L1rDEKrxZKF2zf9g2Pl7W/MwbxMX+mdz30rtr8gjmy9xNDCkrF:x29DkEGRQixVSjLa130BYgjmy9T7F
Malware Config
Extracted
sakula
www.polarroute.com
Signatures
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Sakula family
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Sakula payload 6 IoCs
resource yara_rule behavioral2/memory/3572-0-0x0000000000400000-0x0000000000425000-memory.dmp family_sakula behavioral2/files/0x0008000000023c97-3.dat family_sakula behavioral2/memory/1832-5-0x0000000000400000-0x0000000000425000-memory.dmp family_sakula behavioral2/memory/3572-10-0x0000000000400000-0x0000000000425000-memory.dmp family_sakula behavioral2/memory/1832-11-0x0000000000400000-0x0000000000425000-memory.dmp family_sakula behavioral2/memory/3572-12-0x0000000000400000-0x0000000000425000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation 3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe -
Executes dropped EXE 1 IoCs
pid Process 1832 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" 3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe -
resource yara_rule behavioral2/memory/3572-0-0x0000000000400000-0x0000000000425000-memory.dmp upx behavioral2/files/0x0008000000023c97-3.dat upx behavioral2/memory/1832-5-0x0000000000400000-0x0000000000425000-memory.dmp upx behavioral2/memory/3572-10-0x0000000000400000-0x0000000000425000-memory.dmp upx behavioral2/memory/1832-11-0x0000000000400000-0x0000000000425000-memory.dmp upx behavioral2/memory/3572-12-0x0000000000400000-0x0000000000425000-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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MediaCenter.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 3016 cmd.exe 208 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 208 PING.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 3572 3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3572 wrote to memory of 1832 3572 3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe 82 PID 3572 wrote to memory of 1832 3572 3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe 82 PID 3572 wrote to memory of 1832 3572 3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe 82 PID 3572 wrote to memory of 3016 3572 3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe 91 PID 3572 wrote to memory of 3016 3572 3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe 91 PID 3572 wrote to memory of 3016 3572 3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe 91 PID 3016 wrote to memory of 208 3016 cmd.exe 93 PID 3016 wrote to memory of 208 3016 cmd.exe 93 PID 3016 wrote to memory of 208 3016 cmd.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe"C:\Users\Admin\AppData\Local\Temp\3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.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:3572 -
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:1832
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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\3e37aca3637a5b850f2e5432d67e10b92deb61bd2294021119d3c8afebad3042.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:3016 -
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:208
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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
140KB
MD55a63d940b17d8ab445306f31745e7536
SHA1db7c63522732f0d71c8973619d786e6dac50073d
SHA256d212f625f27963180bcde564aa049f080657d7eb2f2914efdb84c3c77b5a712c
SHA51247ae5e8c39b498c61d9e3957330fac1656cdaef0fdefc7b29fc133b64135d56a129632b11f2d754c3f4553694472fc6c62df93db70e7cb46afb5e1f8f018de5e