Analysis
- max time kernel
147s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
14/11/2022, 05:42
General
- Target SecuriteInfo.com.Win32.PWSX-gen.16326.5122.exe
- Size 519KB
- Sample221114-gd1d7sfb35
- SHA256 5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00
Malware Config
Extracted
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formbook
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cfvc
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qFcyI8OAPHKap6ubfQ==
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NuOCNnr/zOqy1xM5AN4=
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CnHfypZMLKQKgKaaVw4J1g==
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9WpDFnsiwEyoFko7+GYiyo55
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zUKhZPi3f21+ux+L
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vqqeiTTPlz+cnQaD
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GLGZh9zop+UvsCtBEm9x
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eCUGyUEAe9hmj8KgaA==
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EvXUn0s63zJyoxQfCGQmMZRu
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kVy6iO/FuRGD/A==
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+tg0M82KQk7fX4XXoYIluHMEFhbrzMk=
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hP/nqutI9DR+0mBnYA==
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cwrq1kLJd9QzqtQq9QCc7hHV9FjjKSvU
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eE6vlcLHxAHZ7g==
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vpKQL84+30y4SZpU/Ox5
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vbfnlWZmAj1aVbCdbA==
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UNQwEfT8tzbiL3J2Wrjm3g==
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02LLqYRY9SeDIHwK5pFjYrg=
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PhkLzj8IuT6R7v3lxlBYwqO69HReqnrF
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mkYwC5lsF6cDS6RU/Ox5
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 48 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of WriteProcessMemory 18 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\SecuriteInfo.com.Win32.PWSX-gen.16326.5122.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win32.PWSX-gen.16326.5122.exe"2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hwFkBCJyqs.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hwFkBCJyqs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp472B.tmp"3⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp472B.tmp
memory/1368-135-0x0000000005640000-0x000000000564A000-memory.dmp
memory/1368-136-0x0000000008030000-0x00000000080CC000-memory.dmp
memory/1368-132-0x0000000000C20000-0x0000000000CA8000-memory.dmp
memory/1368-134-0x0000000005670000-0x0000000005702000-memory.dmp
memory/1368-133-0x0000000005C20000-0x00000000061C4000-memory.dmp
memory/1508-148-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1508-153-0x0000000000422000-0x0000000000424000-memory.dmp
memory/1508-154-0x00000000009F0000-0x0000000000A00000-memory.dmp
memory/1508-152-0x0000000000AE0000-0x0000000000E2A000-memory.dmp
memory/1508-150-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1508-151-0x0000000000401000-0x000000000042F000-memory.dmp
memory/1508-146-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1656-163-0x0000000000870000-0x0000000000CA3000-memory.dmp
memory/1656-172-0x0000000001000000-0x000000000102D000-memory.dmp
memory/1656-170-0x0000000002E30000-0x0000000002EBF000-memory.dmp
memory/1656-166-0x0000000003090000-0x00000000033DA000-memory.dmp
memory/1656-164-0x0000000001000000-0x000000000102D000-memory.dmp
memory/3036-155-0x0000000008730000-0x000000000888F000-memory.dmp
memory/3036-171-0x0000000002FA0000-0x0000000003086000-memory.dmp
memory/3036-173-0x0000000002FA0000-0x0000000003086000-memory.dmp
memory/5044-142-0x0000000005000000-0x0000000005022000-memory.dmp
memory/5044-159-0x0000000007930000-0x0000000007FAA000-memory.dmp
memory/5044-160-0x00000000072E0000-0x00000000072FA000-memory.dmp
memory/5044-139-0x00000000026C0000-0x00000000026F6000-memory.dmp
memory/5044-162-0x0000000007350000-0x000000000735A000-memory.dmp
memory/5044-149-0x0000000005FE0000-0x0000000005FFE000-memory.dmp
memory/5044-141-0x00000000050F0000-0x0000000005718000-memory.dmp
memory/5044-165-0x0000000007560000-0x00000000075F6000-memory.dmp
memory/5044-158-0x0000000006580000-0x000000000659E000-memory.dmp
memory/5044-167-0x0000000007510000-0x000000000751E000-memory.dmp
memory/5044-168-0x0000000007620000-0x000000000763A000-memory.dmp
memory/5044-169-0x0000000007600000-0x0000000007608000-memory.dmp
memory/5044-143-0x00000000058D0000-0x0000000005936000-memory.dmp
memory/5044-157-0x00000000754C0000-0x000000007550C000-memory.dmp
memory/5044-145-0x00000000059B0000-0x0000000005A16000-memory.dmp
memory/5044-156-0x00000000065A0000-0x00000000065D2000-memory.dmp