Analysis
- max time kernel
147s - max time network
13s - platform
windows7_x64 - resource
win7v20201028 - 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.
- Deletes itself 1 IoCs
- 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 6 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 19 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\tmp6133.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\explorer.exe"C:\Windows\SysWOW64\explorer.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⤵
- Deletes itself
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/364-23-0x0000000000A80000-0x0000000000B13000-memory.dmp
memory/364-22-0x0000000002500000-0x0000000002803000-memory.dmp
memory/364-21-0x0000000000080000-0x00000000000AE000-memory.dmp
memory/364-20-0x0000000000E70000-0x00000000010F1000-memory.dmp
memory/364-18-0x0000000074691000-0x0000000074693000-memory.dmp
memory/364-17-0x0000000074B31000-0x0000000074B33000-memory.dmp
memory/992-14-0x0000000000140000-0x0000000000154000-memory.dmp
memory/992-13-0x0000000000970000-0x0000000000C73000-memory.dmp
memory/992-10-0x0000000000400000-0x000000000042E000-memory.dmp
memory/1248-15-0x0000000004250000-0x00000000043BC000-memory.dmp
memory/1668-2-0x0000000074110000-0x00000000747FE000-memory.dmp
memory/1668-7-0x0000000004870000-0x00000000048DB000-memory.dmp
memory/1668-6-0x0000000000480000-0x0000000000493000-memory.dmp
memory/1668-5-0x0000000004E20000-0x0000000004E21000-memory.dmp
memory/1668-3-0x0000000000D90000-0x0000000000D91000-memory.dmp