Analysis
- max time kernel
145s - max time network
148s - platform
windows7_x64 - resource
win7v20210410 - submitted
04/06/2021, 05:42
General
- Target INVOICE.exe
- Size 234KB
- Sample210604-81espb3pme
- SHA256 c59f3d09668674cc602a759071c5972b8f78b2b829afd3fb8d5e6f9ecd820280
Malware Config
Extracted
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formbook
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4.1
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http://www.gicc-fx.com/uer0/
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bonds101.com
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lyotrust.com
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can-amchainseurope.com
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mysoulcure.com
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hometownsmut.com
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cxpzhy.site
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hjklrmn.xyz
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bsdminingservice.com
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mockpacket.com
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standwithkam.com
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yxbdj.com
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soulseedz.com
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whxldjt.com
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ruayhunhangseng.com
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benefitcrystal.info
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rahalake.com
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cryptnex.com
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comicslighthouse.com
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ridenwithbiden.net
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samsunbilsem.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 2 IoCs
- Deletes itself 1 IoCs
- Loads dropped DLL 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 30 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 4 IoCs
- Suspicious use of SendNotifyMessage 4 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- 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⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"C:\Users\Admin\AppData\Local\Temp\INVOICE.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\wininit.exe"C:\Windows\SysWOW64\wininit.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\INVOICE.exe"3⤵
- Deletes itself
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1096-59-0x0000000075281000-0x0000000075283000-memory.dmp
memory/1248-73-0x0000000004190000-0x0000000004252000-memory.dmp
memory/1248-66-0x0000000006D10000-0x0000000006E4F000-memory.dmp
memory/1792-69-0x0000000000550000-0x000000000056A000-memory.dmp
memory/1792-72-0x0000000000410000-0x00000000004A3000-memory.dmp
memory/1792-71-0x0000000002090000-0x0000000002393000-memory.dmp
memory/1792-70-0x0000000000080000-0x00000000000AE000-memory.dmp
memory/2040-64-0x0000000000730000-0x0000000000A33000-memory.dmp
memory/2040-65-0x0000000000340000-0x0000000000354000-memory.dmp
memory/2040-63-0x0000000000400000-0x000000000042E000-memory.dmp