Analysis
- max time kernel
150s - max time network
145s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
19/10/2021, 14:13
Static task
static1
Behavioral task
behavioral1
Sample
confirmaci¢n bancaria.Pdf (2).exe
Resource
win7-en-20211014
General
- Target confirmaci¢n bancaria.Pdf (2).exe
- Size 364KB
- Sample211019-rjed2aghar
- SHA256 1e83eab755128ae8f4bcdade071b08cc6fae1ad62ff9fe29aae62b3e30ea28bb
- MD5 ddbc8a72715948be3b67bef35551ab93
- SHA1 8fae3a5ff7114f0a4a5d063cab05e876a031f0ac
- SHA512 fa10eefd717cb78411238e890384c435a1605e3f699461fa818cd853cdeac00cb77e28af955d68f11ceebf16112a6f1b87d585259a855f0040c83b6aabf09544
- MD5 SHA1 SHA512
Malware Config
Extracted
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formbook
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4.1
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dv9n
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http://www.elianedefalco.com/dv9n/
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nblvqing.com
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delmegebuildingproducts.com
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xiongba8.com
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latuawebreputation.online
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nowcloud.tech
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cckghs.com
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tradeoo.ltd
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ppapo.com
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tphoaphuongdo.club
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whitefoxy.site
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bottle-sentences.net
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computersewa.com
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lushberryholidays.com
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motobotz.com
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shadurj.com
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amazonlexdeveloper.com
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shunli178.xyz
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sjzzlmh.com
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6eu09rp.xyz
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novinmes.com
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elizabethdouglas.net
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heathy.xyz
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forsmarthings.com
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mskstyle-77.store
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henhencaol.xyz
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palncakeswap.com
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osflogistics.com
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14rinapo45.com
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jordinandaustin.com
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natsmartultimatebest.rest
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perfectelopements.com
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xinsaiou.com
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92billion.com
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hb4um.com
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amneatni.xyz
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pirigame.com
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93335t.xyz
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forwardvalley.com
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contacttracingusa.com
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americanexpress2214.creditcard
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gurume-naruki.com
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cdminstructors.com
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posetac.online
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suzhouyscl.com
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bakarusgroup.com
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epicureanadventuretours.com
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goldengooses-outlet.com
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glitchking411.com
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8xroe84.xyz
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https29dgi.xyz
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sweetspendingwholesalersllc.com
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bitopvip.com
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sheraton-international.com
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ajansclubturkey.site
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communityskiswap.com
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sauna-kuu.com
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stephkingspilates.com
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rosnewmarkextension.net
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100daysofml.com
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nexbot.biz
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ahhhpop.com
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marfalow.com
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project-candles.com
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topdogiadung.com
Signatures
- suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
- Formbook Payload 4 IoCs
resource yara_rule behavioral2/memory/1800-127-0x0000000000400000-0x000000000042F000-memory.dmp formbook behavioral2/memory/1800-128-0x000000000041F190-mapping.dmp formbook behavioral2/memory/1800-133-0x0000000000400000-0x000000000042F000-memory.dmp formbook behavioral2/memory/3196-138-0x0000000000CA0000-0x0000000000CCF000-memory.dmp formbook - Suspicious use of SetThreadContext 4 IoCs
description pid Process procid_target PID 3600 set thread context of 1800 3600 confirmaci¢n bancaria.Pdf (2).exe 74 PID 1800 set thread context of 3040 1800 RegSvcs.exe 23 PID 1800 set thread context of 3040 1800 RegSvcs.exe 23 PID 3196 set thread context of 3040 3196 help.exe 23 - 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.
pid Process 2916 schtasks.exe - Suspicious behavior: EnumeratesProcesses 45 IoCs
pid Process 3600 confirmaci¢n bancaria.Pdf (2).exe 3600 confirmaci¢n bancaria.Pdf (2).exe 3600 confirmaci¢n bancaria.Pdf (2).exe 3600 confirmaci¢n bancaria.Pdf (2).exe 3600 confirmaci¢n bancaria.Pdf (2).exe 1800 RegSvcs.exe 1800 RegSvcs.exe 1800 RegSvcs.exe 1800 RegSvcs.exe 1800 RegSvcs.exe 1800 RegSvcs.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe 3196 help.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3040 Explorer.EXE - Suspicious behavior: MapViewOfSection 6 IoCs
pid Process 1800 RegSvcs.exe 1800 RegSvcs.exe 1800 RegSvcs.exe 1800 RegSvcs.exe 3196 help.exe 3196 help.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3600 confirmaci¢n bancaria.Pdf (2).exe Token: SeDebugPrivilege 1800 RegSvcs.exe Token: SeDebugPrivilege 3196 help.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3600 confirmaci¢n bancaria.Pdf (2).exe 3600 confirmaci¢n bancaria.Pdf (2).exe - Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 3600 wrote to memory of 2916 3600 confirmaci¢n bancaria.Pdf (2).exe 71 PID 3600 wrote to memory of 2916 3600 confirmaci¢n bancaria.Pdf (2).exe 71 PID 3600 wrote to memory of 2916 3600 confirmaci¢n bancaria.Pdf (2).exe 71 PID 3600 wrote to memory of 4696 3600 confirmaci¢n bancaria.Pdf (2).exe 72 PID 3600 wrote to memory of 4696 3600 confirmaci¢n bancaria.Pdf (2).exe 72 PID 3600 wrote to memory of 4696 3600 confirmaci¢n bancaria.Pdf (2).exe 72 PID 3600 wrote to memory of 1800 3600 confirmaci¢n bancaria.Pdf (2).exe 74 PID 3600 wrote to memory of 1800 3600 confirmaci¢n bancaria.Pdf (2).exe 74 PID 3600 wrote to memory of 1800 3600 confirmaci¢n bancaria.Pdf (2).exe 74 PID 3600 wrote to memory of 1800 3600 confirmaci¢n bancaria.Pdf (2).exe 74 PID 3600 wrote to memory of 1800 3600 confirmaci¢n bancaria.Pdf (2).exe 74 PID 3600 wrote to memory of 1800 3600 confirmaci¢n bancaria.Pdf (2).exe 74 PID 3040 wrote to memory of 3196 3040 Explorer.EXE 75 PID 3040 wrote to memory of 3196 3040 Explorer.EXE 75 PID 3040 wrote to memory of 3196 3040 Explorer.EXE 75 PID 3196 wrote to memory of 904 3196 help.exe 76 PID 3196 wrote to memory of 904 3196 help.exe 76 PID 3196 wrote to memory of 904 3196 help.exe 76
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Users\Admin\AppData\Local\Temp\confirmaci¢n bancaria.Pdf (2).exe"C:\Users\Admin\AppData\Local\Temp\confirmaci¢n bancaria.Pdf (2).exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3600 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\PAfAvPbvd" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7173.tmp"3⤵
- Creates scheduled task(s)
PID:2916
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵PID:4696
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1800
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C:\Windows\SysWOW64\help.exe"C:\Windows\SysWOW64\help.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3196 -
C:\Windows\SysWOW64\cmd.exe/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵PID:904
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