Analysis
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max time kernel
94s -
max time network
98s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
15-11-2024 23:27
Behavioral task
behavioral1
Sample
b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe
Resource
win10v2004-20241007-en
General
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Target
b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe
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Size
92KB
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MD5
0367b8274f39649c2923cc17df406e50
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SHA1
2efa1cddfb77f5617147d5c91d777845bd5167e2
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SHA256
b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9ab
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SHA512
93ea3bd2b555bfab311b9fda665948cf79d2a3a1ccdfbf64e7d9416b5a41f2c84289cca6f15dc2d83ab8ff7b0c157e5dfd8fc89fc2f3925d703d93c07ba0defc
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SSDEEP
1536:TJbCiJVkgMaT2itTkjoRXnM48dXFajVPYxCEtkz30rtrK:9bfVk29te2jqxCEtg30BW
Malware Config
Extracted
sakula
www.savmpet.com
Signatures
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Sakula family
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Sakula payload 1 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe family_sakula -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe -
Executes dropped EXE 1 IoCs
Processes:
AdobeUpdate.exepid process 1756 AdobeUpdate.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AdobeUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MicroMedia\\AdobeUpdate.exe" b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe -
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.
Processes:
b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exeAdobeUpdate.execmd.exePING.EXEdescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AdobeUpdate.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.
Processes:
cmd.exePING.EXEpid process 1604 cmd.exe 2356 PING.EXE -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exedescription pid process Token: SeIncBasePriorityPrivilege 5104 b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.execmd.exedescription pid process target process PID 5104 wrote to memory of 1756 5104 b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe AdobeUpdate.exe PID 5104 wrote to memory of 1756 5104 b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe AdobeUpdate.exe PID 5104 wrote to memory of 1756 5104 b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe AdobeUpdate.exe PID 5104 wrote to memory of 1604 5104 b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe cmd.exe PID 5104 wrote to memory of 1604 5104 b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe cmd.exe PID 5104 wrote to memory of 1604 5104 b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe cmd.exe PID 1604 wrote to memory of 2356 1604 cmd.exe PING.EXE PID 1604 wrote to memory of 2356 1604 cmd.exe PING.EXE PID 1604 wrote to memory of 2356 1604 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe"C:\Users\Admin\AppData\Local\Temp\b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.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:5104 -
C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exeC:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1756
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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\b20523514390d3423b0e225c5323726e9cecf4a2fe3d0839500aa30979bae9abN.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1604 -
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:2356
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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
92KB
MD5d75bf17a65b46d563f6ae30903007ef2
SHA16b5af0054f3b0658d22362d0d4c6c78d9f8d9ca9
SHA2564f7b152c418dad1f5419696bf97b673a470569094a3b188f75691e362a049c76
SHA51288365a85bdac72ada35b6d072f3d5dbe49c855adc154d8c4e536acccfb2a5e4bd2bfdf6349e7360629db0c5af784229fd358eed59bf307d04413b1451342d044