Analysis
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max time kernel
91s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
14-06-2022 19:48
Static task
static1
Behavioral task
behavioral1
Sample
2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe
Resource
win10v2004-20220414-en
General
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Target
2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe
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Size
628KB
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MD5
aa325b98e7e74bd29564c815adf449a8
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SHA1
665f7e46049987a8eb666d66d8055ef6721d630e
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SHA256
2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a
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SHA512
832cceaab68c7d070eb7ad4e676164dcb283b71e80633621e92e60279cd94f35201dafc62ec8ecce1c2ad8dfa93b68e90b48d46f22c87d3af1c23937847ac146
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
firefox.exepid process 2024 firefox.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation 2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
firefox.exevbc.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\Desktop\\firefox.exe -boot" firefox.exe Set value (str) \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Kennametal Inc = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Kennametal Inc\\Kennametal Inc.exe" vbc.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 34 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
firefox.exedescription pid process target process PID 2024 set thread context of 4360 2024 firefox.exe vbc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
vbc.exepid process 4360 vbc.exe 4360 vbc.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exefirefox.exevbc.exedescription pid process Token: SeDebugPrivilege 3928 2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe Token: SeDebugPrivilege 2024 firefox.exe Token: SeDebugPrivilege 4360 vbc.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
vbc.exepid process 4360 vbc.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exeexplorer.exefirefox.exedescription pid process target process PID 3928 wrote to memory of 4664 3928 2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe cmd.exe PID 3928 wrote to memory of 4664 3928 2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe cmd.exe PID 3928 wrote to memory of 4664 3928 2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe cmd.exe PID 3928 wrote to memory of 3328 3928 2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe explorer.exe PID 3928 wrote to memory of 3328 3928 2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe explorer.exe PID 3928 wrote to memory of 3328 3928 2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe explorer.exe PID 3236 wrote to memory of 2024 3236 explorer.exe firefox.exe PID 3236 wrote to memory of 2024 3236 explorer.exe firefox.exe PID 3236 wrote to memory of 2024 3236 explorer.exe firefox.exe PID 2024 wrote to memory of 4360 2024 firefox.exe vbc.exe PID 2024 wrote to memory of 4360 2024 firefox.exe vbc.exe PID 2024 wrote to memory of 4360 2024 firefox.exe vbc.exe PID 2024 wrote to memory of 4360 2024 firefox.exe vbc.exe PID 2024 wrote to memory of 4360 2024 firefox.exe vbc.exe PID 2024 wrote to memory of 4360 2024 firefox.exe vbc.exe PID 2024 wrote to memory of 4360 2024 firefox.exe vbc.exe PID 2024 wrote to memory of 4360 2024 firefox.exe vbc.exe -
outlook_office_path 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe -
outlook_win_path 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe"C:\Users\Admin\AppData\Local\Temp\2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe"1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3928 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe" "C:\Users\Admin\Desktop\firefox.exe"2⤵PID:4664
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\System32\explorer.exe" /c, "C:\Users\Admin\Desktop\firefox.exe"2⤵PID:3328
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Suspicious use of WriteProcessMemory
PID:3236 -
C:\Users\Admin\Desktop\firefox.exe"C:\Users\Admin\Desktop\firefox.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2024 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"3⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4360
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\Desktop\firefox.exeFilesize
628KB
MD5aa325b98e7e74bd29564c815adf449a8
SHA1665f7e46049987a8eb666d66d8055ef6721d630e
SHA2562d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a
SHA512832cceaab68c7d070eb7ad4e676164dcb283b71e80633621e92e60279cd94f35201dafc62ec8ecce1c2ad8dfa93b68e90b48d46f22c87d3af1c23937847ac146
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C:\Users\Admin\Desktop\firefox.exeFilesize
628KB
MD5aa325b98e7e74bd29564c815adf449a8
SHA1665f7e46049987a8eb666d66d8055ef6721d630e
SHA2562d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a
SHA512832cceaab68c7d070eb7ad4e676164dcb283b71e80633621e92e60279cd94f35201dafc62ec8ecce1c2ad8dfa93b68e90b48d46f22c87d3af1c23937847ac146
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memory/2024-140-0x0000000006510000-0x00000000065AC000-memory.dmpFilesize
624KB
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memory/2024-142-0x0000000000F02000-0x0000000000F07000-memory.dmpFilesize
20KB
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memory/2024-145-0x0000000000F02000-0x0000000000F07000-memory.dmpFilesize
20KB
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memory/2024-136-0x0000000000000000-mapping.dmp
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memory/2024-144-0x0000000000F02000-0x0000000000F07000-memory.dmpFilesize
20KB
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memory/2024-138-0x0000000000F02000-0x0000000000F07000-memory.dmpFilesize
20KB
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memory/2024-139-0x0000000000F02000-0x0000000000F07000-memory.dmpFilesize
20KB
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memory/2024-143-0x0000000000F02000-0x0000000000F07000-memory.dmpFilesize
20KB
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memory/3328-134-0x0000000000000000-mapping.dmp
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memory/3928-131-0x0000000005D40000-0x00000000062E4000-memory.dmpFilesize
5.6MB
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memory/3928-130-0x0000000000E20000-0x0000000000EC0000-memory.dmpFilesize
640KB
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memory/3928-132-0x0000000005870000-0x0000000005902000-memory.dmpFilesize
584KB
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memory/4360-141-0x0000000000000000-mapping.dmp
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memory/4360-147-0x0000000000760000-0x0000000000796000-memory.dmpFilesize
216KB
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memory/4360-148-0x00000000058C0000-0x0000000005926000-memory.dmpFilesize
408KB
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memory/4360-149-0x0000000006730000-0x0000000006780000-memory.dmpFilesize
320KB
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memory/4360-150-0x0000000006210000-0x000000000621A000-memory.dmpFilesize
40KB
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memory/4664-133-0x0000000000000000-mapping.dmp