Analysis Overview
SHA256
b5efa74506a9cc9aa6f2f7234989edac808ffbcb35eb196815bc88bb1e8c7716
Threat Level: Known bad
The file b2537bd00585ae2d60c717c6712be8eb was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Modifies Windows Firewall
Checks computer location settings
Executes dropped EXE
Unsigned PE
Enumerates physical storage devices
Runs ping.exe
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-04 14:09
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-04 14:09
Reported
2024-03-04 14:12
Platform
win7-20240215-en
Max time kernel
121s
Max time network
122s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\init.exe" | C:\Users\Admin\AppData\Local\Temp\b2537bd00585ae2d60c717c6712be8eb.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b2537bd00585ae2d60c717c6712be8eb.exe
"C:\Users\Admin\AppData\Local\Temp\b2537bd00585ae2d60c717c6712be8eb.exe"
Network
Files
memory/1888-0-0x00000000003E0000-0x0000000000418000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-04 14:09
Reported
2024-03-04 14:12
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
124s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = ",C:\\Users\\Admin\\AppData\\Local\\Temp\\init.exe" | C:\Users\Admin\AppData\Local\Temp\b2537bd00585ae2d60c717c6712be8eb.exe | N/A |
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\b2537bd00585ae2d60c717c6712be8eb.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\init.exe | N/A |
Enumerates physical storage devices
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b2537bd00585ae2d60c717c6712be8eb.exe
"C:\Users\Admin\AppData\Local\Temp\b2537bd00585ae2d60c717c6712be8eb.exe"
C:\Users\Admin\AppData\Local\Temp\init.exe
"C:\Users\Admin\AppData\Local\Temp\init.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\99.bat" "
C:\Windows\SysWOW64\PING.EXE
ping -n 1 0.0.0.0
C:\Windows\SysWOW64\netsh.exe
netsh firewall set allowedprogram "C:\Users\Admin\AppData\Local\Temp\init.exe" ENABLE
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 79.121.231.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 185.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta5.am0.yahoodns.net | udp |
| US | 98.136.96.74:25 | mta5.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| IE | 74.125.193.26:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | microsoft-com.mail.protection.outlook.com | udp |
| US | 52.101.8.49:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | 175.178.17.96.in-addr.arpa | udp |
| US | 72.233.33.194:5190 | tcp | |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 188.178.17.96.in-addr.arpa | udp |
Files
memory/1880-0-0x00000000003E0000-0x0000000000418000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\init.exe
| MD5 | b2537bd00585ae2d60c717c6712be8eb |
| SHA1 | f5e499f7559e59c76e6a83a691b1e65965fb1aa4 |
| SHA256 | b5efa74506a9cc9aa6f2f7234989edac808ffbcb35eb196815bc88bb1e8c7716 |
| SHA512 | 36d346de5aab25c3c3399dd647527991e01e6bceeb255c4b1f1b38045daa9039033d4e5e034d9d9b33bc70766279bab8f5e5d2b3bc4a1cea78d4b2d2430b09c5 |
C:\Users\Admin\AppData\Local\Temp\99.bat
| MD5 | c605c627b6ffc15f055661b815307035 |
| SHA1 | e6c42264df0fcc11a4e6d843e86fc8f5f8181356 |
| SHA256 | 8e1218e686e2a5b486a20f0ac6e0f095ff3f0f0c84fc53a90313dc4861e0f944 |
| SHA512 | 81367079398ccd88bb84e30b1bba064e67859f271ae0237a649a0cfed4923d81dec039d2e6699182bddd2bd82afc7ccb643c7cadac8ebd3cbb55fd0cbb45a95f |
memory/1280-15-0x0000000000290000-0x0000000000291000-memory.dmp