Analysis
- max time kernel
150s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
05/05/2024, 16:49
General
- Target 18882465f8b6e72a46669d4aa2e78cb1_JaffaCakes118.exe
- Size 424KB
- Sample240505-vbypgsad87
- SHA256 6e521645df736e76b57cdf6996cee4a5148e649cee75be8f36ccfb008f047fa6
Malware Config
Extracted
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formbook
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3.8
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h308
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sewrelax.com
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southbaycurling.rocks
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hongju101.com
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nikkismithonline.com
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bluprl.net
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slursthisshark.com
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smootord.com
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buyoregonhemp.com
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stepstolight.com
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mchausverwalter.com
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cofidis.cloud
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queenartjewellery.com
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samoedrasalvageengineers.com
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skull.ltd
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leapmotors.net
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gayo.ltd
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philborremans.com
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yeezywaverunner700.com
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febriananas.com
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railor-music.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 IoCs
- Obfuscated with Agile.Net obfuscator 1 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 56 IoCs
- Suspicious behavior: MapViewOfSection 9 IoCs
- Suspicious use of AdjustPrivilegeToken 28 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 27 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\18882465f8b6e72a46669d4aa2e78cb1_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\18882465f8b6e72a46669d4aa2e78cb1_JaffaCakes118.exe"2⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\System32\explorer.exe" /c, "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\bin.exe"3⤵
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\18882465f8b6e72a46669d4aa2e78cb1_JaffaCakes118.exe" "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\skypeeApp.exe"3⤵
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\System32\explorer.exe" /c, "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\skypeeApp.exe"3⤵
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C:\Windows\SysWOW64\msdt.exe"C:\Windows\SysWOW64\msdt.exe"2⤵
- Suspicious use of SetThreadContext
- 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\Roaming\Microsoft\Windows\AccountPictures\bin.exe"3⤵
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\bin.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\bin.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\explorer.exeC:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\skypeeApp.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\skypeeApp.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\skypeeApp.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\skypeeApp.exe"3⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 2204⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3556 -ip 35561⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
bin.exe
skypeeApp.exe
bin.txt
memory/3100-33-0x0000000003B40000-0x0000000003C77000-memory.dmp
memory/3100-22-0x0000000003B40000-0x0000000003C77000-memory.dmp
memory/3556-41-0x0000000000820000-0x000000000084A000-memory.dmp
memory/3600-20-0x0000000008AD0000-0x0000000008BDF000-memory.dmp
memory/4016-43-0x0000000003470000-0x00000000035E1000-memory.dmp
memory/4016-37-0x0000000003470000-0x00000000035E1000-memory.dmp
memory/4720-15-0x000000007520E000-0x000000007520F000-memory.dmp
memory/4720-0-0x000000007520E000-0x000000007520F000-memory.dmp
memory/4720-16-0x0000000075200000-0x00000000759B0000-memory.dmp
memory/4720-7-0x0000000004DF0000-0x0000000004E8C000-memory.dmp
memory/4720-6-0x0000000004D30000-0x0000000004D44000-memory.dmp
memory/4720-28-0x0000000075200000-0x00000000759B0000-memory.dmp
memory/4720-5-0x0000000075200000-0x00000000759B0000-memory.dmp
memory/4720-4-0x0000000004AC0000-0x0000000004ACA000-memory.dmp
memory/4720-3-0x0000000004B50000-0x0000000004BE2000-memory.dmp
memory/4720-2-0x0000000005060000-0x0000000005604000-memory.dmp
memory/4720-1-0x0000000000090000-0x0000000000100000-memory.dmp
memory/5092-13-0x0000000000850000-0x00000000008A7000-memory.dmp