Analysis Overview
SHA256
1c60bc833a05be736fd6734552cf56281db65a3cb0c8004b3f94d88cf6c31a84
Threat Level: Known bad
The file Yeni sifaris siyahisi.exe was found to be: Known bad.
Malicious Activity Summary
ModiLoader, DBatLoader
ModiLoader Second Stage
Executes dropped EXE
Adds Run key to start application
Drops file in System32 directory
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
Modifies registry class
Script User-Agent
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-26 07:00
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-26 07:00
Reported
2024-03-26 07:02
Platform
win7-20240220-en
Max time kernel
140s
Max time network
122s
Command Line
Signatures
ModiLoader, DBatLoader
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1744 wrote to memory of 2852 | N/A | C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1744 wrote to memory of 2852 | N/A | C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1744 wrote to memory of 2852 | N/A | C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 1744 wrote to memory of 2852 | N/A | C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe
"C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1744 -s 812
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | onedrive.live.com | udp |
| US | 13.107.137.11:443 | onedrive.live.com | tcp |
| US | 13.107.137.11:443 | onedrive.live.com | tcp |
Files
memory/1744-0-0x0000000000230000-0x0000000000231000-memory.dmp
memory/1744-1-0x0000000003270000-0x0000000004270000-memory.dmp
memory/1744-2-0x0000000003270000-0x0000000004270000-memory.dmp
memory/1744-4-0x0000000000230000-0x0000000000231000-memory.dmp
memory/1744-5-0x0000000000400000-0x0000000000527000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-26 07:00
Reported
2024-03-26 07:02
Platform
win10v2004-20240226-en
Max time kernel
146s
Max time network
154s
Command Line
Signatures
ModiLoader, DBatLoader
ModiLoader Second Stage
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\skype\sjype.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Xdchywvk = "C:\\Users\\Public\\Xdchywvk.url" | C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rmc-H3YHZ8 = "\"C:\\Windows\\SysWOW64\\skype\\sjype.exe\"" | C:\Windows\SysWOW64\SndVol.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Rmc-H3YHZ8 = "\"C:\\Windows\\SysWOW64\\skype\\sjype.exe\"" | C:\Windows\SysWOW64\SndVol.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\skype\sjype.exe | C:\Windows\SysWOW64\SndVol.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\skype\sjype.exe | C:\Windows\SysWOW64\SndVol.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\skype | C:\Windows\SysWOW64\SndVol.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Windows\SysWOW64\SndVol.exe | N/A |
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe
"C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe"
C:\Windows\SysWOW64\extrac32.exe
C:\\Windows\\System32\\extrac32.exe /C /Y C:\Users\Admin\AppData\Local\Temp\Yeni sifaris siyahisi.exe C:\\Users\\Public\\Libraries\\Xdchywvk.PIF
C:\Windows\SysWOW64\SndVol.exe
C:\Windows\System32\SndVol.exe
C:\Windows\SysWOW64\skype\sjype.exe
"C:\Windows\SysWOW64\skype\sjype.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | onedrive.live.com | udp |
| US | 13.107.137.11:443 | onedrive.live.com | tcp |
| US | 13.107.137.11:443 | onedrive.live.com | tcp |
| US | 8.8.8.8:53 | 11.137.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | naprww.bn.files.1drv.com | udp |
| US | 13.107.42.12:443 | naprww.bn.files.1drv.com | tcp |
| US | 13.107.137.11:443 | onedrive.live.com | tcp |
| US | 8.8.8.8:53 | 12.42.107.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.173.189.20.in-addr.arpa | udp |
Files
memory/1920-0-0x0000000000800000-0x0000000000801000-memory.dmp
memory/1920-1-0x0000000003FE0000-0x0000000004FE0000-memory.dmp
memory/1920-2-0x0000000003FE0000-0x0000000004FE0000-memory.dmp
memory/1920-4-0x0000000000400000-0x0000000000527000-memory.dmp
C:\Windows\SysWOW64\skype\sjype.exe
| MD5 | 5ac83d3d18f9b6e1c5b78bd712661524 |
| SHA1 | 9ee22c8038e47a4935aeac113d3f2ee6f03a22c4 |
| SHA256 | d68ddc4be84705357288ba972939aa9aa5f95537ebc059c3ff3ccaae11638fca |
| SHA512 | 2fc37b27836a4f0a4c61a5cd976e7452120585b86a615cce25108737337a9a02b73cc68c92b26fbb89a5cadbf3033ad0b6355cc5b7094f18318e3dbea1b84082 |