Analysis
- max time kernel
150s - max time network
107s - platform
windows7_x64 - resource
win7v200722 - submitted
18/08/2020, 06:21
General
- Target Commercial Invoice.exe
- Size 809KB
- Sample200818-9lfrjp211a
- SHA256 2bde8d605b2ce54ea697cab8be4daff0c2349322b42a96c8a9237ac7eff35314
Malware Config
Extracted
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formbook
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http://www.regulars5.com/evcy/
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coolroof26.com
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branchpcb.com
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globalstudenthelpline.com
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beikonwiremesh.com
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locations-hibscus.com
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sqhjjs.com
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delan-africa.com
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phytphysios.com
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w662017.com
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collincountyopenhomeslist.com
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tianshuimould.com
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cyberrome.com
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skydiveteuge.com
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regalbuildingsupplies.com
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yes-exports.com
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dtjrsc.com
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chaovod.info
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blissfulcreations.store
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pascarlmedia.com
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wirbelstrom.info
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 4 IoCs
- Deletes itself 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 2 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Drops file in Program Files directory 1 IoCs
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 30 IoCs
- Suspicious behavior: MapViewOfSection 8 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 5 IoCs
- Suspicious use of SendNotifyMessage 4 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Commercial Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Commercial Invoice.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Commercial Invoice.exe"C:\Users\Admin\AppData\Local\Temp\Commercial Invoice.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 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:\Users\Admin\AppData\Local\Temp\Commercial Invoice.exe"3⤵
- Deletes itself
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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/300-9-0x000000013FF80000-0x0000000140013000-memory.dmp
memory/572-6-0x000007FEF8540000-0x000007FEF87BA000-memory.dmp
memory/992-3-0x0000000000950000-0x000000000096F000-memory.dmp
memory/992-5-0x0000000002FE0000-0x00000000030FF000-memory.dmp
memory/992-7-0x0000000003B80000-0x0000000003CB6000-memory.dmp
memory/1504-0-0x0000000000400000-0x000000000042D000-memory.dmp