Analysis
- max time kernel
152s - max time network
136s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
21/05/2022, 01:19
General
- Target RFQ-MNAMR-001RB-WhastsAAp Images.exe
- Size 398KB
- Sample220521-bphqmsfcbp
- SHA256 aae9b362789cdf8a185d9b963cb3b0ba5d7f5599285cecd8625944168232c42c
Malware Config
Extracted
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formbook
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3.9
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xcm
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xn--rhq5es99j.com
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storage-download-fast.review
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campingfamilly.com
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rientbottcieux.info
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2015z.com
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999izo.info
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guojiafangshui.com
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jpaecwra.com
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evergreenmga.net
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semprebellissima.store
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meizin01.com
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bangladesherkhobor.net
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rivercoveresidencessg.com
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carbonfibercrew.com
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1rbld2.biz
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nikolatesla.review
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erlandsonsbrygga.com
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cursosreikiadistancia.com
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centraldemotorersltda.com
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shelskysbrooklynbagels.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
- Formbook Payload 3 IoCs
- Adds policy Run key to start application 2 TTPs 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 3 IoCs
- Drops file in Program Files directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 56 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 7 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
- System policy modification 1 TTPs 1 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\RFQ-MNAMR-001RB-WhastsAAp Images.exe"C:\Users\Admin\AppData\Local\Temp\RFQ-MNAMR-001RB-WhastsAAp Images.exe"2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fgySYm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD621.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\RFQ-MNAMR-001RB-WhastsAAp Images.exe"{path}"3⤵
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C:\Users\Admin\AppData\Local\Temp\RFQ-MNAMR-001RB-WhastsAAp Images.exe"{path}"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cmstp.exe"C:\Windows\SysWOW64\cmstp.exe"2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\RFQ-MNAMR-001RB-WhastsAAp Images.exe"3⤵
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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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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
DB1
tmpD621.tmp
memory/8-147-0x0000000008360000-0x00000000084A0000-memory.dmp
memory/8-140-0x0000000007D90000-0x0000000007EDF000-memory.dmp
memory/4340-142-0x0000000000720000-0x0000000000736000-memory.dmp
memory/4340-146-0x0000000002D10000-0x0000000002DA3000-memory.dmp
memory/4340-144-0x0000000002E80000-0x00000000031CA000-memory.dmp
memory/4340-143-0x0000000000D70000-0x0000000000D9A000-memory.dmp
memory/4348-139-0x00000000012B0000-0x00000000012C4000-memory.dmp
memory/4348-138-0x0000000001780000-0x0000000001ACA000-memory.dmp
memory/4348-137-0x0000000000400000-0x000000000042A000-memory.dmp
memory/4348-135-0x0000000000400000-0x000000000042A000-memory.dmp
memory/4876-130-0x0000000075150000-0x0000000075701000-memory.dmp