Analysis
- max time kernel
149s - max time network
152s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
- submitted
15/11/2022, 16:51
General
- Target issu2022151100031pdf.exe
- Size 303KB
- Sample221115-vcs6dsag21
- SHA256 5f12d75282af46d76785401c4e69c2f2cf3bc35281d337ce541ddc0e0f6f1725
Malware Config
Extracted
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formbook
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4.1
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mi08
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mytimebabes.com
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ycpxb.com
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abdkaplani.com
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cloudingersoftech.com
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fthfire.xyz
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christyna.work
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3d-add-on.com
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knowyourtechdeals.com
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kcl24.com
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sepatubiker.com
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sunnyboy.live
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zrbsq.com
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rinpari.com
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lesac-berra.com
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yes820.com
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cnnorman.com
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mystichousedv.com
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sbobet888auto.com
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gawiul.xyz
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luispenas.com
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook payload 3 IoCs
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 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.
- Suspicious behavior: EnumeratesProcesses 28 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\issu2022151100031pdf.exe"C:\Users\Admin\AppData\Local\Temp\issu2022151100031pdf.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\zdmmctz.exe"C:\Users\Admin\AppData\Local\Temp\zdmmctz.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\zdmmctz.exe"C:\Users\Admin\AppData\Local\Temp\zdmmctz.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\mstsc.exe"C:\Windows\SysWOW64\mstsc.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\zdmmctz.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
ezcfrnf.op
yuusz.z
zdmmctz.exe
zdmmctz.exe
zdmmctz.exe
zdmmctz.exe
zdmmctz.exe
memory/1188-68-0x0000000005FA0000-0x00000000060D9000-memory.dmp
memory/1188-78-0x0000000003950000-0x00000000039FE000-memory.dmp
memory/1188-76-0x0000000003950000-0x00000000039FE000-memory.dmp
memory/1276-54-0x00000000765A1000-0x00000000765A3000-memory.dmp
memory/1356-73-0x00000000000C0000-0x00000000000EF000-memory.dmp
memory/1356-72-0x0000000000870000-0x0000000000974000-memory.dmp
memory/1356-74-0x00000000020A0000-0x00000000023A3000-memory.dmp
memory/1356-75-0x0000000001F90000-0x0000000002024000-memory.dmp
memory/1356-77-0x00000000000C0000-0x00000000000EF000-memory.dmp
memory/1456-67-0x0000000000120000-0x0000000000135000-memory.dmp
memory/1456-66-0x0000000000840000-0x0000000000B43000-memory.dmp
memory/1456-65-0x0000000000400000-0x000000000042F000-memory.dmp