Analysis
- max time kernel
130s - max time network
144s - platform
windows10_x64 - resource
win10v20210408 - submitted
22/06/2021, 06:56
Static task
static1
Behavioral task
behavioral1
Sample
AttachmentPDF.exe
Resource
win7v20210410
0 signatures
0 seconds
General
- Target AttachmentPDF.exe
- Size 861KB
- Sample210622-9h3bbe2afj
- SHA256 7e07c98e0f97b46db236ef8765108ce7bb484e29dab1da0924de402ff3b84bdd
- MD5 142e96d86a02f94f79ee56656509871c
- SHA1 e5740cdcc3f971904223f05fc857f53e2057d5ab
- SHA512 e6692c5165e22efd1b5bd6bd2d82a02c1aa08a25a855e94b4edfba70b4f362824cbd3bb4ca9ed4188a5f045f7ebdc4bb4db38d1dc13293de2c7f24ef902a58dc
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
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lokibot
C2
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https://batdongsangiacatloi.vn/.kisskiss/news/school/boy/choo/fre.php
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http://kbfvzoboss.bid/alien/fre.php
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http://alphastand.trade/alien/fre.php
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http://alphastand.win/alien/fre.php
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http://alphastand.top/alien/fre.php
Signatures
- Looks for VirtualBox Guest Additions in registry 2 TTPs
- Looks for VMWare Tools registry key 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion AttachmentPDF.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion AttachmentPDF.exe - Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum AttachmentPDF.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0 AttachmentPDF.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3920 set thread context of 1212 3920 AttachmentPDF.exe 81 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3716 powershell.exe 3716 powershell.exe 3716 powershell.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 1212 AttachmentPDF.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3716 powershell.exe Token: SeDebugPrivilege 1212 AttachmentPDF.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3920 wrote to memory of 3716 3920 AttachmentPDF.exe 78 PID 3920 wrote to memory of 3716 3920 AttachmentPDF.exe 78 PID 3920 wrote to memory of 3716 3920 AttachmentPDF.exe 78 PID 3920 wrote to memory of 1212 3920 AttachmentPDF.exe 81 PID 3920 wrote to memory of 1212 3920 AttachmentPDF.exe 81 PID 3920 wrote to memory of 1212 3920 AttachmentPDF.exe 81 PID 3920 wrote to memory of 1212 3920 AttachmentPDF.exe 81 PID 3920 wrote to memory of 1212 3920 AttachmentPDF.exe 81 PID 3920 wrote to memory of 1212 3920 AttachmentPDF.exe 81 PID 3920 wrote to memory of 1212 3920 AttachmentPDF.exe 81 PID 3920 wrote to memory of 1212 3920 AttachmentPDF.exe 81 PID 3920 wrote to memory of 1212 3920 AttachmentPDF.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\AttachmentPDF.exe"C:\Users\Admin\AppData\Local\Temp\AttachmentPDF.exe"1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3920 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\AttachmentPDF.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3716
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C:\Users\Admin\AppData\Local\Temp\AttachmentPDF.exe"C:\Users\Admin\AppData\Local\Temp\AttachmentPDF.exe"2⤵
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:1212
-