Analysis Overview
SHA256
28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d
Threat Level: Known bad
The file 28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d was found to be: Known bad.
Malicious Activity Summary
Guloader,Cloudeye
Guloader family
Loads dropped DLL
Checks QEMU agent file
Adds Run key to start application
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Program crash
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-15 16:15
Signatures
Unsigned PE
| 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 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-15 16:15
Reported
2024-11-15 16:17
Platform
win7-20240903-en
Max time kernel
150s
Max time network
149s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Checks QEMU agent file
| Description | Indicator | Process | Target |
| File opened (read-only) | C:\Program Files\Qemu-ga\qemu-ga.exe | C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe | N/A |
| File opened (read-only) | C:\Program Files\Qemu-ga\qemu-ga.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe | N/A |
Loads dropped DLL
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Handselling = "C:\\Users\\Admin\\AppData\\Local\\Temp\\sekstenaarig\\Lerduer.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1984 set thread context of 2076 | N/A | C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe |
Enumerates physical storage devices
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\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe | N/A |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe
"C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
"C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | vinetikett.com | udp |
Files
\Users\Admin\AppData\Local\Temp\nsyA288.tmp\System.dll
| MD5 | 9625d5b1754bc4ff29281d415d27a0fd |
| SHA1 | 80e85afc5cccd4c0a3775edbb90595a1a59f5ce0 |
| SHA256 | c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448 |
| SHA512 | dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b |
memory/1984-203-0x00000000035B0000-0x00000000042CE000-memory.dmp
memory/1984-204-0x00000000035B0000-0x00000000042CE000-memory.dmp
memory/1984-205-0x00000000779A1000-0x0000000077AA2000-memory.dmp
memory/1984-206-0x00000000779A0000-0x0000000077B49000-memory.dmp
memory/2076-207-0x00000000779A0000-0x0000000077B49000-memory.dmp
memory/2076-209-0x0000000000400000-0x0000000000615000-memory.dmp
memory/1984-215-0x00000000035B0000-0x00000000042CE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-15 16:15
Reported
2024-11-15 16:17
Platform
win10v2004-20241007-en
Max time kernel
150s
Max time network
152s
Command Line
Signatures
Guloader family
Guloader,Cloudeye
Checks QEMU agent file
| Description | Indicator | Process | Target |
| File opened (read-only) | C:\Program Files\Qemu-ga\qemu-ga.exe | C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe | N/A |
| File opened (read-only) | C:\Program Files\Qemu-ga\qemu-ga.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe | N/A |
Loads dropped DLL
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Handselling = "C:\\Users\\Admin\\AppData\\Local\\Temp\\sekstenaarig\\Lerduer.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4164 set thread context of 3940 | N/A | C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe |
Enumerates physical storage devices
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\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe | N/A |
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe
"C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
"C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
"C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
"C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
"C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
"C:\Users\Admin\AppData\Local\Temp\28dbe1a424619df840d06cebb87f8d08649a37db58e1c2e51ab25c84aa31701d.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 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | 180.129.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | vinetikett.com | udp |
| US | 8.8.8.8:53 | 26.173.189.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\nsf7ACF.tmp\System.dll
| MD5 | 9625d5b1754bc4ff29281d415d27a0fd |
| SHA1 | 80e85afc5cccd4c0a3775edbb90595a1a59f5ce0 |
| SHA256 | c2f405d7402f815d0c3fadd9a50f0bbbb1bab9aa38fe347823478a2587299448 |
| SHA512 | dce52b640897c2e8dbfd0a1472d5377fa91fb9cf1aeff62604d014bccbe5b56af1378f173132abeb0edd18c225b9f8f5e3d3e72434aed946661e036c779f165b |
memory/4164-154-0x0000000003380000-0x000000000409E000-memory.dmp
memory/4164-155-0x0000000003380000-0x000000000409E000-memory.dmp
memory/4164-156-0x0000000077B01000-0x0000000077C21000-memory.dmp
memory/4164-157-0x0000000010004000-0x0000000010005000-memory.dmp
memory/4164-158-0x0000000010000000-0x0000000010006000-memory.dmp
memory/3940-159-0x0000000000E00000-0x0000000001B1E000-memory.dmp
memory/3940-160-0x0000000077B88000-0x0000000077B89000-memory.dmp
memory/3940-162-0x0000000077B01000-0x0000000077C21000-memory.dmp
memory/3940-163-0x0000000000E00000-0x0000000001B1E000-memory.dmp
memory/3940-164-0x0000000000400000-0x000000000062B000-memory.dmp
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-15 16:15
Reported
2024-11-15 16:17
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
141s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4676 wrote to memory of 1056 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4676 wrote to memory of 1056 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4676 wrote to memory of 1056 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1056 -ip 1056
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1056 -s 612
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 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.129.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
Files
Analysis: behavioral5
Detonation Overview
Submitted
2024-11-15 16:15
Reported
2024-11-15 16:17
Platform
win7-20241010-en
Max time kernel
117s
Max time network
119s
Command Line
Signatures
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2552 wrote to memory of 2100 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2552 wrote to memory of 2100 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2552 wrote to memory of 2100 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2552 wrote to memory of 2100 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2552 wrote to memory of 2100 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2552 wrote to memory of 2100 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2552 wrote to memory of 2100 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Funktionrgruppen\Madreporaria\SpeedFan.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Funktionrgruppen\Madreporaria\SpeedFan.dll,#1
Network
Files
Analysis: behavioral6
Detonation Overview
Submitted
2024-11-15 16:15
Reported
2024-11-15 16:17
Platform
win10v2004-20241007-en
Max time kernel
95s
Max time network
139s
Command Line
Signatures
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 916 wrote to memory of 1428 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 916 wrote to memory of 1428 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 916 wrote to memory of 1428 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Funktionrgruppen\Madreporaria\SpeedFan.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Funktionrgruppen\Madreporaria\SpeedFan.dll,#1
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 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-15 16:15
Reported
2024-11-15 16:17
Platform
win7-20240903-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rundll32.exe |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2324 -s 224
Network
Files
Analysis: behavioral7
Detonation Overview
Submitted
2024-11-15 16:15
Reported
2024-11-15 16:17
Platform
win7-20240903-en
Max time kernel
117s
Max time network
118s
Command Line
Signatures
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Funktionrgruppen\Madreporaria\libpixbufloader-bmp.dll,#1
Network
Files
Analysis: behavioral8
Detonation Overview
Submitted
2024-11-15 16:15
Reported
2024-11-15 16:17
Platform
win10v2004-20241007-en
Max time kernel
94s
Max time network
145s
Command Line
Signatures
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Funktionrgruppen\Madreporaria\libpixbufloader-bmp.dll,#1
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |