Analysis
- max time kernel
149s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
29/03/2022, 16:10
General
- Target DHL_AWB# 9678547836_xlsx.exe
- Size 254KB
- Sample220329-tmcqqagae2
- SHA256 8c8afc7e873c1fc04cfc9cc2331ed6f46dad4defd1158e39f10258ee4b477758
Malware Config
Extracted
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formbook
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4.1
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r75h
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rethinkmycountrylife.com
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hs5ae.xyz
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boylesports.xyz
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totalenergiesistasyonlari.com
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supportukraine-pic.com
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koi-ch.net
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lakemurrayhomes.net
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betvoxel.com
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fullstarscoin.com
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efablueprint.net
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astrogeop.com
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tiyu372.net
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autoeco.pro
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cleanupnet.com
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mybooktimes.online
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annnabeysurvey.com
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termscaseplaces.biz
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varildolum.com
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javideejay.com
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jszfcgbx.press
Signatures
- Formbook
Formbook is a data stealing malware which is capable of stealing data.
- Formbook Payload 2 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.
- 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\DHL_AWB# 9678547836_xlsx.exe"C:\Users\Admin\AppData\Local\Temp\DHL_AWB# 9678547836_xlsx.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\stkbjv.exeC:\Users\Admin\AppData\Local\Temp\stkbjv.exe C:\Users\Admin\AppData\Local\Temp\avouz3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\stkbjv.exeC:\Users\Admin\AppData\Local\Temp\stkbjv.exe C:\Users\Admin\AppData\Local\Temp\avouz4⤵
- 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\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\autofmt.exe"C:\Windows\SysWOW64\autofmt.exe"2⤵
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.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\stkbjv.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
avouz
f6n5r8lttsxzotbhx70
stkbjv.exe
stkbjv.exe
stkbjv.exe
memory/1756-139-0x0000000000AC0000-0x0000000000E0A000-memory.dmp
memory/1756-136-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1756-140-0x00000000005C0000-0x00000000005D5000-memory.dmp
memory/2820-144-0x00000000004C0000-0x00000000008F3000-memory.dmp
memory/2820-145-0x0000000000F00000-0x0000000000F2F000-memory.dmp
memory/2820-146-0x0000000002F10000-0x000000000325A000-memory.dmp
memory/2820-147-0x0000000002CC0000-0x0000000002D54000-memory.dmp
memory/2880-141-0x0000000008CD0000-0x0000000008E63000-memory.dmp
memory/2880-148-0x00000000091D0000-0x000000000930F000-memory.dmp