Analysis
- max time kernel
150s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
16/06/2022, 09:43
General
- Target SR20220600525003,pdf.exe
- Size 236KB
- Sample220616-lp25dsgac4
- SHA256 00468491177bab4d715685cc174538ff0a3c15cdf0b679c7d163b89e3b8d2421
Malware Config
Extracted
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xloader
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2.6
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tn61
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ryliehorrall.art
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mesdco.net
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street-art-ink.com
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sepetcin.com
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stilghar.com
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hawaiipooltiles.com
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fuerst-von-falkennest.com
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totalvirtue.com
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xdk0blc0tqy6a7.life
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zootowngravel.com
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kreditkarten-optionde.com
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6888tlbb.xyz
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albertakleekai.com
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travelnurseinfofinder3.life
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valleyinnswat.com
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secure-remove-devices.com
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digitalswamy.com
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www112casinova.com
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medifasttrd.com
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distritoxermar.com
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
- suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
- Xloader Payload 4 IoCs
- Adds policy Run key to start application 2 TTPs 2 IoCs
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of SetThreadContext 3 IoCs
- Drops file in Program Files directory 4 IoCs
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 50 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 11 IoCs
- Suspicious use of WriteProcessMemory 27 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\SR20220600525003,pdf.exe"C:\Users\Admin\AppData\Local\Temp\SR20220600525003,pdf.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"3⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\control.exe"C:\Windows\SysWOW64\control.exe"2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"3⤵
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C:\Windows\SysWOW64\cmd.exe/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V3⤵
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C:\Windows\SysWOW64\cmd.exe/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V3⤵
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
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C:\Program Files (x86)\Adhkdulo\ThumbCacheht2tb2e.exe"C:\Program Files (x86)\Adhkdulo\ThumbCacheht2tb2e.exe"2⤵
- Executes dropped EXE
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
ThumbCacheht2tb2e.exe
ThumbCacheht2tb2e.exe
DB1
DB1
memory/2092-147-0x0000000007920000-0x0000000007AA9000-memory.dmp
memory/2092-138-0x00000000077F0000-0x000000000791A000-memory.dmp
memory/2092-146-0x0000000007920000-0x0000000007AA9000-memory.dmp
memory/2156-143-0x0000000002D40000-0x000000000308A000-memory.dmp
memory/2156-140-0x00000000005B0000-0x00000000005D7000-memory.dmp
memory/2156-141-0x0000000000BC0000-0x0000000000BEB000-memory.dmp
memory/2156-144-0x0000000002AD0000-0x0000000002B60000-memory.dmp
memory/2156-145-0x0000000000BC0000-0x0000000000BEB000-memory.dmp
memory/4324-130-0x0000000000640000-0x000000000067C000-memory.dmp
memory/4784-136-0x0000000001A50000-0x0000000001D9A000-memory.dmp
memory/4784-137-0x0000000001420000-0x0000000001431000-memory.dmp
memory/4784-135-0x0000000000400000-0x000000000042B000-memory.dmp
memory/4784-133-0x0000000000400000-0x000000000042B000-memory.dmp