Analysis
- max time kernel
158s - max time network
163s - platform
windows10-2004_x64 - resource
win10v2004-20231023-en - resource tags
- submitted
01/11/2023, 17:18
General
- Target b559f853c534c533f75d09966aec1a81.exe
- Size 361KB
- Sample231101-vt9jpscf84
- SHA256 ad5097f981c366a853537cc8a7d745da73615e051c523b92f6ca7dcb80ea82b7
Malware Config
Extracted
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formbook
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4.1
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sy22
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vinteligencia.com
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displayfridges.fun
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completetip.com
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giallozafferrano.com
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jizihao1.com
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mysticheightstrail.com
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fourseasonslb.com
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kjnala.shop
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mosiacwall.com
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vandistreet.com
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gracefullytouchedartistry.com
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hbiwhwr.shop
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mfmz.net
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hrmbrillianz.com
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funwarsztat.com
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polewithcandy.com
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ourrajasthan.com
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wilhouettteamerica.com
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johnnystintshop.com
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asgnelwin.com
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).
- Suspicious behavior: EnumeratesProcesses 50 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 10 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⤵
- 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\b559f853c534c533f75d09966aec1a81.exe"C:\Users\Admin\AppData\Local\Temp\b559f853c534c533f75d09966aec1a81.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\dulzbez.exe"C:\Users\Admin\AppData\Local\Temp\dulzbez.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\dulzbez.exe"C:\Users\Admin\AppData\Local\Temp\dulzbez.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\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\cmmon32.exe"C:\Windows\SysWOW64\cmmon32.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\dulzbez.exe"3⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
dulzbez.exe
dulzbez.exe
dulzbez.exe
svlnauoxzlt.x
memory/3100-19-0x0000000008280000-0x0000000008404000-memory.dmp
memory/3100-22-0x0000000007AC0000-0x0000000007B57000-memory.dmp
memory/3100-13-0x0000000008280000-0x0000000008404000-memory.dmp
memory/3100-25-0x0000000007AC0000-0x0000000007B57000-memory.dmp
memory/3100-23-0x0000000007AC0000-0x0000000007B57000-memory.dmp
memory/3580-9-0x0000000001760000-0x0000000001AAA000-memory.dmp
memory/3580-11-0x0000000000400000-0x000000000042F000-memory.dmp
memory/3580-12-0x0000000001C40000-0x0000000001C54000-memory.dmp
memory/3580-7-0x0000000000400000-0x000000000042F000-memory.dmp
memory/4820-15-0x0000000000B10000-0x0000000000B1C000-memory.dmp
memory/4820-18-0x0000000000B20000-0x0000000000B4F000-memory.dmp
memory/4820-21-0x00000000028A0000-0x0000000002933000-memory.dmp
memory/4820-17-0x00000000029B0000-0x0000000002CFA000-memory.dmp
memory/4820-16-0x0000000000B20000-0x0000000000B4F000-memory.dmp
memory/4820-14-0x0000000000B10000-0x0000000000B1C000-memory.dmp
memory/4836-5-0x0000000000720000-0x0000000000722000-memory.dmp