Analysis
- max time kernel
145s - max time network
152s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
- submitted
22/11/2022, 09:41
General
- Target 6c57d954185304fcdf601ae96c7683dd.exe
- Size 312KB
- Sample221122-lnrl9scd71
- SHA256 e2175069548a88b8d2eb7f6fd0dcb8760317025817cb6d2c8b40a3ff71972a6f
Malware Config
Extracted
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formbook
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4.1
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h3ha
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ideas-dulces.store
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store1995.store
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swuhn.com
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ninideal.com
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musiqhaus.com
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quranchart.com
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kszq26.club
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lightfx.online
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thetickettruth.com
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meritloancubk.com
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lawnforcement.com
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sogeanetwork.com
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thedinoexotics.com
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kojima-ah.net
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gr-myab3z.xyz
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platiniuminestor.net
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reviewsiske.com
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stessil-lifestyle.com
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goodqjourney.biz
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cirimpianti.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 4 IoCs
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 2 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 27 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
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C:\Users\Admin\AppData\Local\Temp\6c57d954185304fcdf601ae96c7683dd.exe"C:\Users\Admin\AppData\Local\Temp\6c57d954185304fcdf601ae96c7683dd.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\piwkmbf.exe"C:\Users\Admin\AppData\Local\Temp\piwkmbf.exe" C:\Users\Admin\AppData\Local\Temp\krclcxfacaf.z3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\piwkmbf.exe"C:\Users\Admin\AppData\Local\Temp\piwkmbf.exe" C:\Users\Admin\AppData\Local\Temp\krclcxfacaf.z4⤵
- Executes dropped EXE
- 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\raserver.exe"C:\Windows\SysWOW64\raserver.exe"5⤵
- 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\piwkmbf.exe"6⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
bigfdsk.cx
krclcxfacaf.z
piwkmbf.exe
piwkmbf.exe
piwkmbf.exe
piwkmbf.exe
piwkmbf.exe
memory/320-77-0x0000000001F70000-0x0000000002273000-memory.dmp
memory/320-82-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/320-78-0x0000000000790000-0x0000000000823000-memory.dmp
memory/320-76-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/320-75-0x0000000000830000-0x000000000084C000-memory.dmp
memory/1148-54-0x00000000767F1000-0x00000000767F3000-memory.dmp
memory/1268-68-0x0000000005FF0000-0x0000000006197000-memory.dmp
memory/1268-70-0x0000000006350000-0x00000000064B4000-memory.dmp
memory/1268-79-0x0000000006F20000-0x000000000709B000-memory.dmp
memory/1268-80-0x000007FEF6C90000-0x000007FEF6DD3000-memory.dmp
memory/1268-81-0x000007FF28010000-0x000007FF2801A000-memory.dmp
memory/1268-83-0x0000000006F20000-0x000000000709B000-memory.dmp
memory/2016-72-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2016-69-0x00000000002E0000-0x00000000002F4000-memory.dmp
memory/2016-67-0x0000000000190000-0x00000000001A4000-memory.dmp
memory/2016-66-0x00000000008D0000-0x0000000000BD3000-memory.dmp
memory/2016-65-0x0000000000400000-0x000000000042F000-memory.dmp