Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
06/02/2023, 07:15
General
- Target TBbnIeshOChdGjx.exe
- Size 852KB
- Sample230206-h29s8ace63
- SHA256 f4a0e79e842eb7a46dc6e5ba3f5cc71c2ea6d600c86eca1fedf63cff8d410fd7
Malware Config
Extracted
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formbook
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g44n
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t60gB4YRvsDLttd9HG4=
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xck8G7COQ+g7VIpX
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BQQF3mmpLPskhQ==
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eLWwmzNyK6ee+nF1jDvvkxuSGA==
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3tlgNOzw8BBjpNOQMnc=
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nOpNEJhoU0h+00S9E1YfgA==
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xcvTpljkjIyEdvhp+VcGFtJC
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bZxOHr5CtzY4
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rOD304X0u1DN/m7cbA==
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Knixl0HJyEOOiNckwk8GFtJC
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S4JMDRNTUAol
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Vp9wSwNZSfY7VIpX
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0Nf/zlrpmpahnM+tpkYGFtJC
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joXsuHiBcVp88DHEHMA7
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yN8i9ppoZYHSSaqqk6NZnQ==
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4UFEMfyKhSB4UovzjdabqolwhFtMH1M=
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d3RiRcXCeR8wlgjEHMA7
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eMUS8PSBPCe2rPg=
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LCsR0X328UuSAmlf
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/keifSXopayqjLt1EWQ=
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 4 IoCs
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 46 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 8 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\TBbnIeshOChdGjx.exe"C:\Users\Admin\AppData\Local\Temp\TBbnIeshOChdGjx.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\TBbnIeshOChdGjx.exe"C:\Users\Admin\AppData\Local\Temp\TBbnIeshOChdGjx.exe"3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\autoconv.exe"C:\Windows\SysWOW64\autoconv.exe"2⤵
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C:\Windows\SysWOW64\help.exe"C:\Windows\SysWOW64\help.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
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Downloads
memory/2220-146-0x0000000002CD0000-0x0000000002DCA000-memory.dmp
memory/2220-160-0x0000000002E50000-0x0000000002F25000-memory.dmp
memory/2220-158-0x0000000002E50000-0x0000000002F25000-memory.dmp
memory/2220-150-0x0000000008080000-0x000000000821A000-memory.dmp
memory/3044-133-0x0000000006010000-0x00000000065B4000-memory.dmp
memory/3044-134-0x0000000005A60000-0x0000000005AF2000-memory.dmp
memory/3044-135-0x0000000005A10000-0x0000000005A1A000-memory.dmp
memory/3044-136-0x00000000081D0000-0x000000000826C000-memory.dmp
memory/3044-132-0x0000000000F80000-0x000000000105C000-memory.dmp
memory/4764-138-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4764-152-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4764-145-0x0000000001420000-0x0000000001430000-memory.dmp
memory/4764-142-0x0000000001890000-0x0000000001BDA000-memory.dmp
memory/4764-147-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4764-148-0x0000000000422000-0x0000000000424000-memory.dmp
memory/4764-149-0x0000000001CF0000-0x0000000001D00000-memory.dmp
memory/4764-141-0x0000000000401000-0x000000000042F000-memory.dmp
memory/4764-144-0x0000000000422000-0x0000000000424000-memory.dmp
memory/4764-153-0x0000000000401000-0x000000000042F000-memory.dmp
memory/4764-140-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4980-155-0x0000000000CB0000-0x0000000000FFA000-memory.dmp
memory/4980-156-0x0000000000350000-0x000000000037D000-memory.dmp
memory/4980-157-0x0000000000B60000-0x0000000000BEF000-memory.dmp
memory/4980-154-0x0000000000CA0000-0x0000000000CA7000-memory.dmp
memory/4980-159-0x0000000000350000-0x000000000037D000-memory.dmp