Analysis
- max time kernel
157s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20220331-en - submitted
04/04/2022, 12:20
General
- Target IRQ2107797_pdf.exe
- Size 397KB
- Sample220404-phra4aaafn
- SHA256 ddfdab103d34dfc6ddd6518745c101342e9953e6c2e049576e15ea570fb16e3a
Malware Config
Extracted
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formbook
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4.1
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s09m
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briteidea.solutions
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laureloil.store
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mappr.info
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mrcostavendasonline.com
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armystart.com
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fsztlj.com
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crowd-bonus.online
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intrinsicvalueventures.com
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orbworld.com
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implant-dentclinic.store
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zibbaceramic.com
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sellingmygold.com
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careercoachservices.com
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onlinecrosslink.com
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besremiop.store
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clickybuzz.com
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metaversogrowth.com
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pinoaflower.com
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privilegedpeach.com
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whxzf.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
- 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). Likely ransomware behaviour.
- Enumerates system info in registry 2 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 60 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\IRQ2107797_pdf.exe"C:\Users\Admin\AppData\Local\Temp\IRQ2107797_pdf.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\lxqitxn.exeC:\Users\Admin\AppData\Local\Temp\lxqitxn.exe C:\Users\Admin\AppData\Local\Temp\waheu3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\lxqitxn.exeC:\Users\Admin\AppData\Local\Temp\lxqitxn.exe C:\Users\Admin\AppData\Local\Temp\waheu4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\chkdsk.exe"C:\Windows\SysWOW64\chkdsk.exe"2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- 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\lxqitxn.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
4ckjkfchk80xmw07
lxqitxn.exe
lxqitxn.exe
lxqitxn.exe
waheu
memory/2616-136-0x0000000002980000-0x0000000002AB4000-memory.dmp
memory/2616-143-0x0000000002AC0000-0x0000000002B62000-memory.dmp
memory/4904-139-0x0000000000440000-0x000000000046F000-memory.dmp
memory/4904-138-0x0000000000E10000-0x0000000000E1A000-memory.dmp
memory/4904-141-0x0000000000E20000-0x000000000116A000-memory.dmp
memory/4904-142-0x00000000009E0000-0x0000000000A73000-memory.dmp
memory/4932-135-0x00000000005B0000-0x00000000005C4000-memory.dmp
memory/4932-133-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4932-134-0x0000000000BB0000-0x0000000000EFA000-memory.dmp
memory/4932-130-0x0000000000400000-0x000000000042F000-memory.dmp