Analysis
- max time kernel
147s - max time network
150s - platform
windows10_x64 - resource
win10v200722 - submitted
07/09/2020, 14:06
General
- Target Vzukyqw_Signed_.exe
- Size 623KB
- Sample200907-84c9aakfdn
- SHA256 2467572968320c67ea46c765d9cdae94d3887e44d7af7e29b88f1b0e51fa4c01
Malware Config
Extracted
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formbook
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http://www.drayo.xyz/ksh/
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hizliblog.com
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sewakfootwear.club
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whiteboypost.com
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nicolegrewell.com
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bintangbola.club
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hotleafllc.com
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xn--krntnernudel-gcb.com
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thighhighking.com
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latienditasocal.com
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dhway.net
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graphitivalence.com
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kingofinvest.com
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homeisthelifestyle.com
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maximusitsolutions.com
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boozebabes.com
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forbesair.site
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sohamproduction.com
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rksethi.com
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hlib-elghoula.com
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motedasai.club
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
- Formbook Payload 2 IoCs
- ModiLoader First Stage 2 IoCs
- ModiLoader Second Stage 2 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Suspicious use of SetThreadContext 4 IoCs
- Drops file in Windows directory 1 IoCs
- Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Modifies data under HKEY_USERS 5 IoCs
- Modifies system certificate store 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 48 IoCs
- Suspicious behavior: MapViewOfSection 8 IoCs
- Suspicious use of AdjustPrivilegeToken 8 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Vzukyqw_Signed_.exe"C:\Users\Admin\AppData\Local\Temp\Vzukyqw_Signed_.exe"2⤵
- Suspicious use of SetThreadContext
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\internet explorer\ieinstal.exe"C:\Program Files (x86)\internet explorer\ieinstal.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\NETSTAT.EXE"C:\Windows\SysWOW64\NETSTAT.EXE"2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- 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 copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V3⤵
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc1⤵
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/416-0-0x00000000021F0000-0x0000000002218000-memory.dmp
memory/416-1-0x0000000003570000-0x00000000035D8000-memory.dmp
memory/2060-17-0x00007FF6382F0000-0x00007FF638383000-memory.dmp
memory/2060-15-0x00007FF6382F0000-0x00007FF638383000-memory.dmp
memory/2060-16-0x00007FF6382F0000-0x00007FF638383000-memory.dmp
memory/3092-3-0x0000000000530000-0x0000000000560000-memory.dmp
memory/3092-5-0x0000000000530000-0x0000000000560000-memory.dmp
memory/3116-13-0x0000000005C50000-0x0000000005CDF000-memory.dmp
memory/3116-12-0x0000000005C50000-0x0000000005CEB000-memory.dmp
memory/3116-9-0x00000000008E0000-0x00000000008EB000-memory.dmp
memory/3116-8-0x00000000008E0000-0x00000000008EB000-memory.dmp