Analysis Overview
SHA256
155f8a2dc27a48902040150b784987d235d004a3df621e769fdf9f054212d0d2
Threat Level: Shows suspicious behavior
The file dd0687aae5dbb44562cd0646c8090a17 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Loads dropped DLL
Installs/modifies Browser Helper Object
Drops file in System32 directory
Unsigned PE
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-25 02:33
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-25 02:33
Reported
2024-03-25 02:36
Platform
win7-20240215-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\dd0687aae5dbb44562cd0646c8090a17.dll | C:\Users\Admin\AppData\Local\Temp\dd0687aae5dbb44562cd0646c8090a17.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\dd0687aae5dbb44562cd0646c8090a17.exe
"C:\Users\Admin\AppData\Local\Temp\dd0687aae5dbb44562cd0646c8090a17.exe"
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Windows\system32\dd0687aae5dbb44562cd0646c8090a17.dll",inject
Network
Files
memory/2700-0-0x0000000000400000-0x0000000000429CC9-memory.dmp
memory/2700-2-0x0000000000400000-0x0000000000429CC9-memory.dmp
C:\Windows\SysWOW64\dd0687aae5dbb44562cd0646c8090a17.dll
| MD5 | d0424edb5ccb0c2b1b18c2778bdf9719 |
| SHA1 | dd9ef16846b6b16846412e58a31db4f559d17274 |
| SHA256 | 53c7e8c2a7371bcb1f26d7743a7c01f35478e963b03c455970a84306fc42afc8 |
| SHA512 | 6be1772e390c49c3420b1aa223ec5bcbb3c832dabbf8f96d6e10779d8f4e3ec134d267010cd1d53bdb9ae373f5ce8fce1ecf35f64f7b5f17378d257fe8404976 |
memory/2912-9-0x0000000010000000-0x0000000010032000-memory.dmp
memory/2912-5-0x0000000010000000-0x0000000010032000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-25 02:33
Reported
2024-03-25 02:36
Platform
win10v2004-20240226-en
Max time kernel
138s
Max time network
142s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1F6581D5-AA53-4b73-A6F9-41420C6B61F1} | C:\Windows\SysWOW64\rundll32.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\dd0687aae5dbb44562cd0646c8090a17.dll | C:\Users\Admin\AppData\Local\Temp\dd0687aae5dbb44562cd0646c8090a17.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1F6581D5-AA53-4b73-A6F9-41420C6B61F1}\InprocServer32\ThreadingModel = "Both" | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1F6581D5-AA53-4b73-A6F9-41420C6B61F1} | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1F6581D5-AA53-4b73-A6F9-41420C6B61F1}\InprocServer32 | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1F6581D5-AA53-4b73-A6F9-41420C6B61F1}\InprocServer32\ = "C:\\Windows\\SysWow64\\dd0687aae5dbb44562cd0646c8090a17.dll" | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1700 wrote to memory of 5080 | N/A | C:\Users\Admin\AppData\Local\Temp\dd0687aae5dbb44562cd0646c8090a17.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1700 wrote to memory of 5080 | N/A | C:\Users\Admin\AppData\Local\Temp\dd0687aae5dbb44562cd0646c8090a17.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1700 wrote to memory of 5080 | N/A | C:\Users\Admin\AppData\Local\Temp\dd0687aae5dbb44562cd0646c8090a17.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\dd0687aae5dbb44562cd0646c8090a17.exe
"C:\Users\Admin\AppData\Local\Temp\dd0687aae5dbb44562cd0646c8090a17.exe"
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe "C:\Windows\system32\dd0687aae5dbb44562cd0646c8090a17.dll",inject
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
Files
memory/1700-0-0x0000000000400000-0x0000000000429CC9-memory.dmp
memory/1700-2-0x0000000000400000-0x0000000000429CC9-memory.dmp
C:\Windows\SysWOW64\dd0687aae5dbb44562cd0646c8090a17.dll
| MD5 | d0424edb5ccb0c2b1b18c2778bdf9719 |
| SHA1 | dd9ef16846b6b16846412e58a31db4f559d17274 |
| SHA256 | 53c7e8c2a7371bcb1f26d7743a7c01f35478e963b03c455970a84306fc42afc8 |
| SHA512 | 6be1772e390c49c3420b1aa223ec5bcbb3c832dabbf8f96d6e10779d8f4e3ec134d267010cd1d53bdb9ae373f5ce8fce1ecf35f64f7b5f17378d257fe8404976 |
memory/5080-5-0x0000000010000000-0x0000000010032000-memory.dmp