Analysis
- max time kernel
59s - max time network
110s - platform
windows10_x64 - resource
win10v20201028 - submitted
15/12/2020, 17:02
General
- Target 5c46bfec3ed39ea08feb47002eb83b38.exe
- Size 637KB
- Sample201215-x3ndtlxdae
- SHA256 7052f92dce4eaee0a7a7046c6529d6ebc79ddb2ee6e487cf34c6c7cd5dfea6ee
Malware Config
Extracted
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formbook
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http://www.herbmedia.net/csv8/
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slgacha.com
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oohdough.com
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6983ylc.com
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aykassociate.com
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latin-hotspot.com
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starrockindia.com
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beamsubway.com
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queensboutique1000.com
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madbaddie.com
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bhoomimart.com
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ankitparivar.com
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aldanasanchezmx.com
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citest1597669833.com
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cristianofreitas.com
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myplantus.com
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counterfeitmilk.com
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8xf39.com
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pregnantwomens.com
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yyyut6.com
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stnanguo.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Xloader
Xloader is a rebranded version of Formbook malware.
- Looks for VirtualBox Guest Additions in registry 2 TTPs
- Xloader Payload 2 IoCs
- 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 1 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\5c46bfec3ed39ea08feb47002eb83b38.exe"C:\Users\Admin\AppData\Local\Temp\5c46bfec3ed39ea08feb47002eb83b38.exe"1⤵
- 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\hHkVkkIPjJF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp568D.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\5c46bfec3ed39ea08feb47002eb83b38.exe"C:\Users\Admin\AppData\Local\Temp\5c46bfec3ed39ea08feb47002eb83b38.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/732-11-0x0000000005D90000-0x0000000005DE1000-memory.dmp
memory/732-15-0x00000000060C0000-0x00000000060C1000-memory.dmp
memory/732-6-0x00000000056A0000-0x00000000056A1000-memory.dmp
memory/732-7-0x00000000051A0000-0x00000000051A1000-memory.dmp
memory/732-8-0x0000000002CD0000-0x0000000002CD1000-memory.dmp
memory/732-9-0x0000000005360000-0x0000000005361000-memory.dmp
memory/732-5-0x0000000005100000-0x0000000005101000-memory.dmp
memory/732-12-0x0000000005EF0000-0x0000000005EF8000-memory.dmp
memory/732-10-0x0000000002D10000-0x0000000002D22000-memory.dmp
memory/732-14-0x0000000006010000-0x0000000006043000-memory.dmp
memory/732-2-0x0000000073EE0000-0x00000000745CE000-memory.dmp
memory/732-3-0x0000000000770000-0x0000000000771000-memory.dmp
memory/1812-18-0x0000000000400000-0x0000000000429000-memory.dmp