Analysis
- max time kernel
148s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
04/10/2023, 06:05
General
- Target Payment Advise 4_10_23 pdf.exe
- Size 305KB
- Sample231004-gs7f3ahe21
- SHA256 795998e9064cb981d6a40a34fbeee48381121ea7ac7175ffe5b506b11cf843d7
Malware Config
Extracted
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formbook
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4.1
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sn26
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resenha10.bet
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gulshan-rajput.com
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xbus.tech
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z813my.cfd
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wlxzjlny.cfd
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auntengotiempo.com
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canada-reservation.com
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thegiftcompany.shop
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esthersilveirapropiedades.com
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1wapws.top
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ymjblnvo.cfd
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termokimik.net
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kushiro-artist-school.com
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bmmboo.com
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caceresconstructionservices.com
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kentuckywalkabout.com
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bringyourcart.com
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miamiwinetour.com
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bobcatsocial.site
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thirdmind.network
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 4 IoCs
- Executes dropped EXE 2 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.
- Modifies registry class 2 IoCs
- Suspicious behavior: EnumeratesProcesses 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Payment Advise 4_10_23 pdf.exe"C:\Users\Admin\AppData\Local\Temp\Payment Advise 4_10_23 pdf.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\xumpp.exe"C:\Users\Admin\AppData\Local\Temp\xumpp.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\xumpp.exe"C:\Users\Admin\AppData\Local\Temp\xumpp.exe"4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\ipconfig.exe"C:\Windows\SysWOW64\ipconfig.exe"2⤵
- Suspicious use of SetThreadContext
- Gathers network information
- 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\xumpp.exe"3⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
rtpcingrrq.zv
xumpp.exe
xumpp.exe
xumpp.exe
memory/1308-16-0x0000000000430000-0x000000000043B000-memory.dmp
memory/1308-20-0x0000000000EC0000-0x0000000000EEF000-memory.dmp
memory/1308-23-0x0000000001510000-0x00000000015A4000-memory.dmp
memory/1308-19-0x00000000016D0000-0x0000000001A1A000-memory.dmp
memory/1308-18-0x0000000000EC0000-0x0000000000EEF000-memory.dmp
memory/1308-17-0x0000000000430000-0x000000000043B000-memory.dmp
memory/2780-5-0x0000000003010000-0x0000000003012000-memory.dmp
memory/3096-15-0x0000000008F90000-0x0000000009111000-memory.dmp
memory/3096-21-0x0000000008F90000-0x0000000009111000-memory.dmp
memory/3096-24-0x0000000008590000-0x0000000008628000-memory.dmp
memory/3096-25-0x0000000008590000-0x0000000008628000-memory.dmp
memory/3096-27-0x0000000008590000-0x0000000008628000-memory.dmp
memory/5080-14-0x0000000000B80000-0x0000000000B95000-memory.dmp
memory/5080-13-0x0000000000570000-0x000000000059F000-memory.dmp
memory/5080-7-0x0000000000570000-0x000000000059F000-memory.dmp
memory/5080-12-0x0000000000DA0000-0x00000000010EA000-memory.dmp