Analysis Overview
SHA256
4fc00071f596b62d408a682bb80b7736fd46c87f212f6d0fe995bf6e8a40c15b
Threat Level: Known bad
The file skin igorek OSU!.exe was found to be: Known bad.
Malicious Activity Summary
HawkEye
Nirsoft
NirSoft WebBrowserPassView
NirSoft MailPassView
Nirsoft
Uses the VBS compiler for execution
Looks up external IP address via web service
Accesses Microsoft Outlook accounts
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-07-08 20:25
Signatures
Nirsoft
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
NirSoft WebBrowserPassView
| 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
2024-07-08 20:25
Reported
2024-07-08 20:31
Platform
win7-20240704-de
Max time kernel
209s
Max time network
125s
Command Line
Signatures
HawkEye
NirSoft MailPassView
| 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 |
NirSoft WebBrowserPassView
| 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 |
Nirsoft
| 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 |
| 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 |
Uses the VBS compiler for execution
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | whatismyipaddress.com | N/A | N/A |
| N/A | whatismyipaddress.com | N/A | N/A |
| N/A | whatismyipaddress.com | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2788 set thread context of 2064 | N/A | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 2788 set thread context of 1396 | N/A | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe
"C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | whatismyipaddress.com | udp |
| US | 104.19.222.79:80 | whatismyipaddress.com | tcp |
| US | 104.19.222.79:443 | whatismyipaddress.com | tcp |
| US | 104.19.222.79:443 | whatismyipaddress.com | tcp |
| US | 8.8.8.8:53 | poczta.interia.pl | udp |
| PL | 217.74.64.236:587 | poczta.interia.pl | tcp |
| PL | 217.74.64.236:587 | poczta.interia.pl | tcp |
Files
memory/2788-0-0x0000000074321000-0x0000000074322000-memory.dmp
memory/2788-1-0x0000000074320000-0x00000000748CB000-memory.dmp
memory/2788-2-0x0000000074320000-0x00000000748CB000-memory.dmp
memory/2788-7-0x0000000074320000-0x00000000748CB000-memory.dmp
memory/2788-8-0x0000000074320000-0x00000000748CB000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Cab788C.tmp
| MD5 | 49aebf8cbd62d92ac215b2923fb1b9f5 |
| SHA1 | 1723be06719828dda65ad804298d0431f6aff976 |
| SHA256 | b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f |
| SHA512 | bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b |
C:\Users\Admin\AppData\Local\Temp\Tar78CD.tmp
| MD5 | 4ea6026cf93ec6338144661bf1202cd1 |
| SHA1 | a1dec9044f750ad887935a01430bf49322fbdcb7 |
| SHA256 | 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8 |
| SHA512 | 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b |
memory/2064-61-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2064-63-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2064-64-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2064-67-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1396-68-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1396-70-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1396-71-0x0000000000400000-0x0000000000458000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holderwb.txt
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |
memory/1396-76-0x0000000000460000-0x00000000004C7000-memory.dmp
memory/1396-79-0x0000000000400000-0x0000000000458000-memory.dmp
memory/2788-80-0x0000000074320000-0x00000000748CB000-memory.dmp
memory/2788-125-0x0000000074320000-0x00000000748CB000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-08 20:25
Reported
2024-07-08 20:31
Platform
win10-20240404-de
Max time kernel
210s
Max time network
259s
Command Line
Signatures
HawkEye
NirSoft MailPassView
| 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 |
NirSoft WebBrowserPassView
| 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 |
Nirsoft
| 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Uses the VBS compiler for execution
Accesses Microsoft Outlook accounts
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1687926120-3022217735-1146543763-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | whatismyipaddress.com | N/A | N/A |
| N/A | whatismyipaddress.com | N/A | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1976 set thread context of 204 | N/A | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
| PID 1976 set thread context of 1440 | N/A | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe
"C:\Users\Admin\AppData\Local\Temp\skin igorek OSU!.exe"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | whatismyipaddress.com | udp |
| US | 104.19.223.79:80 | whatismyipaddress.com | tcp |
| US | 104.19.223.79:443 | whatismyipaddress.com | tcp |
| US | 8.8.8.8:53 | poczta.interia.pl | udp |
| PL | 217.74.64.236:587 | poczta.interia.pl | tcp |
| US | 8.8.8.8:53 | 79.223.19.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 236.64.74.217.in-addr.arpa | udp |
| PL | 217.74.64.236:587 | poczta.interia.pl | tcp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
Files
memory/1976-0-0x0000000073E71000-0x0000000073E72000-memory.dmp
memory/1976-1-0x0000000073E70000-0x0000000074420000-memory.dmp
memory/1976-2-0x0000000073E70000-0x0000000074420000-memory.dmp
memory/1976-7-0x0000000073E70000-0x0000000074420000-memory.dmp
memory/204-8-0x0000000000400000-0x000000000041B000-memory.dmp
memory/204-10-0x0000000000400000-0x000000000041B000-memory.dmp
memory/204-13-0x0000000000400000-0x000000000041B000-memory.dmp
memory/204-11-0x0000000000420000-0x00000000004E5000-memory.dmp
memory/1976-14-0x0000000073E70000-0x0000000074420000-memory.dmp
memory/1440-15-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1440-17-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1440-19-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1976-18-0x0000000073E70000-0x0000000074420000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\holderwb.txt
| MD5 | f94dc819ca773f1e3cb27abbc9e7fa27 |
| SHA1 | 9a7700efadc5ea09ab288544ef1e3cd876255086 |
| SHA256 | a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92 |
| SHA512 | 72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196 |
memory/1440-27-0x0000000000400000-0x0000000000458000-memory.dmp
memory/1976-28-0x0000000073E70000-0x0000000074420000-memory.dmp
memory/1976-29-0x0000000073E70000-0x0000000074420000-memory.dmp
memory/1976-30-0x0000000073E70000-0x0000000074420000-memory.dmp