Analysis
- max time kernel
150s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220310-en - submitted
29/03/2022, 15:37
General
- Target Biochemservice Co Ltd-pdf.exe
- Size 1.1MB
- Sample220329-s2fv9abfep
- SHA256 0082123fa15fb43d060c2f764bdd9f31a19e53b185e5f6de37d1dfec2f59504f
Malware Config
Extracted
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formbook
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4.1
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o0i7
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belleeffectivescore.com
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llptys.com
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osqua.xyz
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happychicken.xyz
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premiodasorte.com
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ifozaks.cfd
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indishjo.com
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sarahtskinner.com
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coquillon.com
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mibesto803.com
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usedselfdriving-car.com
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findbusroutes.com
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mtlcash.com
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yy1j8jc.cfd
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letsing2022.com
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glideun.com
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logansquaress22-23.com
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amblermail140.xyz
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leernota.com
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twwq3hm.cfd
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 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 3 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.
- Suspicious behavior: EnumeratesProcesses 44 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of WriteProcessMemory 21 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\Biochemservice Co Ltd-pdf.exe"C:\Users\Admin\AppData\Local\Temp\Biochemservice Co Ltd-pdf.exe"2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zyEwHPdxlA.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zyEwHPdxlA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2255.tmp"3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\Biochemservice Co Ltd-pdf.exe"C:\Users\Admin\AppData\Local\Temp\Biochemservice Co Ltd-pdf.exe"3⤵
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C:\Users\Admin\AppData\Local\Temp\Biochemservice Co Ltd-pdf.exe"C:\Users\Admin\AppData\Local\Temp\Biochemservice Co Ltd-pdf.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\cscript.exe"C:\Windows\SysWOW64\cscript.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\Local\Temp\Biochemservice Co Ltd-pdf.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp2255.tmp
memory/1096-158-0x00000000005C0000-0x00000000005EF000-memory.dmp
memory/1096-168-0x0000000002930000-0x00000000029C4000-memory.dmp
memory/1096-160-0x00000000029D0000-0x0000000002D1A000-memory.dmp
memory/1096-157-0x0000000000E90000-0x0000000000EB7000-memory.dmp
memory/3048-153-0x0000000007B90000-0x0000000007C7D000-memory.dmp
memory/3048-169-0x0000000007CF0000-0x0000000007DDC000-memory.dmp
memory/3376-137-0x0000000004EA0000-0x0000000004EAA000-memory.dmp
memory/3376-136-0x0000000004E00000-0x0000000004E92000-memory.dmp
memory/3376-134-0x0000000000320000-0x0000000000442000-memory.dmp
memory/3376-135-0x0000000005310000-0x00000000058B4000-memory.dmp
memory/3376-138-0x0000000008400000-0x000000000849C000-memory.dmp
memory/4176-146-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4176-152-0x0000000001370000-0x0000000001385000-memory.dmp
memory/4176-151-0x00000000017F0000-0x0000000001B3A000-memory.dmp
memory/4344-143-0x0000000005600000-0x0000000005C28000-memory.dmp
memory/4344-154-0x0000000005100000-0x000000000511E000-memory.dmp
memory/4344-149-0x0000000005590000-0x00000000055F6000-memory.dmp
memory/4344-148-0x0000000005520000-0x0000000005586000-memory.dmp
memory/4344-159-0x0000000002C45000-0x0000000002C47000-memory.dmp
memory/4344-147-0x0000000005380000-0x00000000053A2000-memory.dmp
memory/4344-161-0x0000000007330000-0x0000000007362000-memory.dmp
memory/4344-162-0x0000000070C00000-0x0000000070C4C000-memory.dmp
memory/4344-163-0x00000000068F0000-0x000000000690E000-memory.dmp
memory/4344-164-0x0000000007CA0000-0x000000000831A000-memory.dmp
memory/4344-165-0x0000000007660000-0x000000000767A000-memory.dmp
memory/4344-166-0x00000000076D0000-0x00000000076DA000-memory.dmp
memory/4344-167-0x00000000078C0000-0x0000000007956000-memory.dmp
memory/4344-141-0x0000000002A00000-0x0000000002A36000-memory.dmp
memory/4344-170-0x00000000076B0000-0x00000000076BE000-memory.dmp
memory/4344-171-0x00000000079A0000-0x00000000079BA000-memory.dmp
memory/4344-172-0x0000000007980000-0x0000000007988000-memory.dmp