Analysis
- max time kernel
149s - max time network
148s - platform
windows10_x64 - resource
win10v20201028 - submitted
18/01/2021, 09:07
General
- Target Payment_4372889.exe
- Size 735KB
- Sample210118-avl64cppqe
- SHA256 ee559d67bcad95fc4e1e6c867908b0b84338472a30d28d34da415c7efbd48f2b
Malware Config
Extracted
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formbook
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http://www.merckcbd.com/dei5/
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studiomullerphoto.com
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reallionairewear.com
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dogsalondoggy-tail.com
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excelmache.net
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bigdiscounters.com
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7986799.com
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ignition.guru
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xiaoxu.info
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jpinpd.com
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solpool.info
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uchooswrewards.com
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everestengineeringworks.com
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qianglongzhipin.com
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deepimper-325.com
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appliedrate.com
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radsazemehr.com
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vivabematividadesfisicas.com
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capacitalo.com
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somecore.com
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listingclass.net
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 3 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs
- Looks for VMWare Tools registry key 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of SetThreadContext 3 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 23 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Payment_4372889.exe"C:\Users\Admin\AppData\Local\Temp\Payment_4372889.exe"2⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UEwFjeYBtPwSqZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAFC9.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Payment_4372889.exe"C:\Users\Admin\AppData\Local\Temp\Payment_4372889.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\autochk.exe"C:\Windows\SysWOW64\autochk.exe"2⤵
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C:\Windows\SysWOW64\raserver.exe"C:\Windows\SysWOW64\raserver.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\Payment_4372889.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/580-9-0x0000000005040000-0x0000000005041000-memory.dmp
memory/580-10-0x0000000004E90000-0x0000000004E91000-memory.dmp
memory/580-6-0x0000000005540000-0x0000000005541000-memory.dmp
memory/580-7-0x00000000050E0000-0x00000000050E1000-memory.dmp
memory/580-8-0x0000000004EE0000-0x0000000004EE1000-memory.dmp
memory/580-2-0x0000000073E00000-0x00000000744EE000-memory.dmp
memory/580-3-0x0000000000610000-0x0000000000611000-memory.dmp
memory/580-11-0x00000000050A0000-0x00000000050B3000-memory.dmp
memory/580-12-0x0000000000F10000-0x0000000000F7B000-memory.dmp
memory/580-13-0x0000000000CA0000-0x0000000000CA1000-memory.dmp
memory/580-5-0x0000000004F00000-0x0000000004F01000-memory.dmp
memory/892-16-0x0000000000400000-0x000000000042E000-memory.dmp
memory/892-20-0x0000000001800000-0x0000000001814000-memory.dmp
memory/892-19-0x0000000001490000-0x00000000017B0000-memory.dmp
memory/2344-27-0x0000000004B80000-0x0000000004C13000-memory.dmp
memory/2344-24-0x0000000001360000-0x000000000137F000-memory.dmp
memory/2344-25-0x0000000000F60000-0x0000000000F8E000-memory.dmp
memory/2344-26-0x00000000047C0000-0x0000000004AE0000-memory.dmp
memory/3116-21-0x0000000006400000-0x000000000650E000-memory.dmp
memory/3116-28-0x0000000006510000-0x000000000662F000-memory.dmp