Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
26/02/2022, 17:17
General
- Target invoice.exe
- Size 237KB
- Sample220226-vtpvascfgk
- SHA256 0d9d4d0dab7e4cdeb774f8dd43ba226e01e88dd8072927b288db367d8d22faca
Malware Config
Extracted
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xloader
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2.5
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n6i5
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lovelycontentandmarketing.com
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educationsavingsaccounts.com
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asdaservices.com
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piccadelifuelup.com
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cloud-9.tech
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sketchnfts.com
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trendcenter.tech
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newjerseyglass.com
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kilimaniapartments.com
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liftsh.com
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formulame.xyz
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licherxxx.com
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helleniccancerregistry.com
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bicitrocha.com
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cretefam.com
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dildilli.com
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renttownlisting.com
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firstparkcondos.com
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howdoesaffiliatemarketing.xyz
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ncgf15.xyz
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
- Xloader Payload 2 IoCs
- Executes dropped EXE 2 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\invoice.exe"C:\Users\Admin\AppData\Local\Temp\invoice.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\diuxktwem.exeC:\Users\Admin\AppData\Local\Temp\diuxktwem.exe C:\Users\Admin\AppData\Local\Temp\rwcdn3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\diuxktwem.exeC:\Users\Admin\AppData\Local\Temp\diuxktwem.exe C:\Users\Admin\AppData\Local\Temp\rwcdn4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\systray.exe"C:\Windows\SysWOW64\systray.exe"2⤵
- Suspicious use of SetThreadContext
- 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:\Users\Admin\AppData\Local\Temp\diuxktwem.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2436-140-0x0000000008C70000-0x0000000008D9B000-memory.dmp
memory/2436-145-0x0000000007550000-0x000000000760A000-memory.dmp
memory/3208-138-0x000000000041D000-0x000000000041E000-memory.dmp
memory/3208-137-0x0000000000A80000-0x0000000000DCA000-memory.dmp
memory/3208-139-0x00000000009D0000-0x00000000009E1000-memory.dmp
memory/3208-134-0x0000000000400000-0x0000000000429000-memory.dmp
memory/4084-141-0x0000000000770000-0x0000000000776000-memory.dmp
memory/4084-142-0x0000000002E00000-0x0000000002E29000-memory.dmp
memory/4084-143-0x0000000004DB0000-0x00000000050FA000-memory.dmp
memory/4084-144-0x0000000004B00000-0x0000000004B90000-memory.dmp