Analysis Overview
SHA256
8a91c4bf99a674909e6993d52e061547517056d36f9b8e828a9148eb412ffa73
Threat Level: Known bad
The file Invoice_Payment_Confirmation_INV#240085_pdf.exe was found to be: Known bad.
Malicious Activity Summary
Formbook
Formbook family
Formbook payload
Executes dropped EXE
Loads dropped DLL
Drops startup file
AutoIT Executable
Suspicious use of SetThreadContext
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious behavior: MapViewOfSection
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-14 02:44
Signatures
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-14 02:44
Reported
2024-11-14 02:46
Platform
win7-20241010-en
Max time kernel
146s
Max time network
19s
Command Line
Signatures
Formbook
Formbook family
Formbook payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Dunlop.vbs | C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\Invoice_Payment_Confirmation_INV#240085_pdf.exe | N/A |
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2236 set thread context of 2324 | N/A | C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 2324 set thread context of 1412 | N/A | C:\Windows\SysWOW64\svchost.exe | C:\Windows\Explorer.EXE |
| PID 3012 set thread context of 1412 | N/A | C:\Windows\SysWOW64\NAPSTAT.EXE | C:\Windows\Explorer.EXE |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Invoice_Payment_Confirmation_INV#240085_pdf.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\NAPSTAT.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\NAPSTAT.EXE | N/A |
| N/A | N/A | C:\Windows\SysWOW64\NAPSTAT.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\NAPSTAT.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\Invoice_Payment_Confirmation_INV#240085_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice_Payment_Confirmation_INV#240085_pdf.exe"
C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice_Payment_Confirmation_INV#240085_pdf.exe"
C:\Windows\SysWOW64\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice_Payment_Confirmation_INV#240085_pdf.exe"
C:\Windows\SysWOW64\NAPSTAT.EXE
"C:\Windows\SysWOW64\NAPSTAT.EXE"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\svchost.exe"
Network
Files
memory/2592-6-0x00000000007F0000-0x0000000000BF0000-memory.dmp
\Users\Admin\AppData\Local\Thebesian\Dunlop.exe
| MD5 | 1b597c240cd23fda73024ed811e4a906 |
| SHA1 | f773bdd6e924b65284d8a9ef67f61615a9764a8e |
| SHA256 | 8a91c4bf99a674909e6993d52e061547517056d36f9b8e828a9148eb412ffa73 |
| SHA512 | d1f00b959befd0c8f91587311d715508c45fb279e661f4ffacb5e3e5f0f19e4151f6baa35ff49fc5d7afe5bb0b09d96346da5d7b0324ee85edb4885ce07f07dc |
C:\Users\Admin\AppData\Local\Temp\nonagglutinant
| MD5 | c07322e0ebc8ba37ea876cb6dfe5ca1f |
| SHA1 | 9e7c8b33c8ee6356e873e426ab661b0f0b968643 |
| SHA256 | f5706eb4fd379758330eb6f7a0ae05d4d19ac529b7bb53e153acd635e5fb05a4 |
| SHA512 | 88538a1164b2221f104cd35ef0dc1e9a521f4adb4f5f5b4b08c6214b3a146ab46ce177e5ab439d3ce505d967b600698cdcad85332ca525a8372e213d23665cb5 |
memory/2236-20-0x00000000006E0000-0x0000000000AE0000-memory.dmp
memory/2324-22-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2324-23-0x0000000000780000-0x0000000000A83000-memory.dmp
memory/2324-25-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2324-26-0x0000000000250000-0x0000000000264000-memory.dmp
memory/1412-28-0x0000000006AB0000-0x0000000006BEE000-memory.dmp
memory/3012-29-0x0000000000E60000-0x0000000000EA6000-memory.dmp
memory/3012-31-0x0000000000E60000-0x0000000000EA6000-memory.dmp
memory/3012-32-0x0000000000080000-0x00000000000AF000-memory.dmp
memory/1412-33-0x0000000006AB0000-0x0000000006BEE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-14 02:44
Reported
2024-11-14 02:46
Platform
win10v2004-20241007-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Formbook
Formbook family
Formbook payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Dunlop.vbs | C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe | N/A |
AutoIT Executable
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 400 set thread context of 1464 | N/A | C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe | C:\Windows\SysWOW64\svchost.exe |
| PID 1464 set thread context of 3504 | N/A | C:\Windows\SysWOW64\svchost.exe | C:\Windows\Explorer.EXE |
| PID 3600 set thread context of 3504 | N/A | C:\Windows\SysWOW64\msiexec.exe | C:\Windows\Explorer.EXE |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\Invoice_Payment_Confirmation_INV#240085_pdf.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\msiexec.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\msiexec.exe | N/A |
Suspicious use of UnmapMainImage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Explorer.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
C:\Users\Admin\AppData\Local\Temp\Invoice_Payment_Confirmation_INV#240085_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice_Payment_Confirmation_INV#240085_pdf.exe"
C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice_Payment_Confirmation_INV#240085_pdf.exe"
C:\Windows\SysWOW64\svchost.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice_Payment_Confirmation_INV#240085_pdf.exe"
C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\svchost.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.139.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.ranxxletzz.xyz | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.isanbowl.top | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | www.omething-nvho.xyz | udp |
| US | 8.8.8.8:53 | www.lywjv-issue.xyz | udp |
| US | 8.8.8.8:53 | www.yntomist.pics | udp |
Files
memory/4440-6-0x0000000000D50000-0x0000000001150000-memory.dmp
C:\Users\Admin\AppData\Local\Thebesian\Dunlop.exe
| MD5 | 1b597c240cd23fda73024ed811e4a906 |
| SHA1 | f773bdd6e924b65284d8a9ef67f61615a9764a8e |
| SHA256 | 8a91c4bf99a674909e6993d52e061547517056d36f9b8e828a9148eb412ffa73 |
| SHA512 | d1f00b959befd0c8f91587311d715508c45fb279e661f4ffacb5e3e5f0f19e4151f6baa35ff49fc5d7afe5bb0b09d96346da5d7b0324ee85edb4885ce07f07dc |
C:\Users\Admin\AppData\Local\Temp\nonagglutinant
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |
memory/400-18-0x00000000010C0000-0x00000000014C0000-memory.dmp
memory/1464-20-0x0000000000400000-0x000000000042F000-memory.dmp
memory/1464-21-0x0000000001C00000-0x0000000001F4A000-memory.dmp
memory/1464-24-0x00000000019D0000-0x00000000019E4000-memory.dmp
memory/1464-23-0x0000000000400000-0x000000000042F000-memory.dmp
memory/3504-25-0x0000000008F00000-0x00000000090A8000-memory.dmp
memory/3600-26-0x0000000000800000-0x0000000000812000-memory.dmp
memory/3600-28-0x0000000000800000-0x0000000000812000-memory.dmp
memory/3600-30-0x0000000000800000-0x0000000000812000-memory.dmp
memory/3600-31-0x0000000000590000-0x00000000005BF000-memory.dmp
memory/3600-32-0x0000000002650000-0x000000000299A000-memory.dmp
memory/3600-33-0x0000000000590000-0x00000000005BF000-memory.dmp
memory/3504-34-0x0000000008F00000-0x00000000090A8000-memory.dmp
memory/3600-35-0x00000000024F0000-0x0000000002583000-memory.dmp
memory/3504-39-0x00000000032B0000-0x000000000334B000-memory.dmp