Analysis Overview
SHA256
71ea59cbedf3c80b6e47bcd746463de8d82b650e0666183a3bd47bf1b2633378
Threat Level: Known bad
The file [Hentai JOI] MrsNuzuki Patreon 2023.exe was found to be: Known bad.
Malicious Activity Summary
Mars Stealer
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Unsigned PE
Enumerates physical storage devices
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-25 06:14
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-25 06:14
Reported
2023-12-25 06:16
Platform
win7-20231215-en
Max time kernel
118s
Max time network
123s
Command Line
Signatures
Mars Stealer
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Adobe\.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\[Hentai JOI] MrsNuzuki Patreon 2023.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\[Hentai JOI] MrsNuzuki Patreon 2023.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Reads user/profile data of web browsers
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Roaming\Adobe\.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\[Hentai JOI] MrsNuzuki Patreon 2023.exe
"C:\Users\Admin\AppData\Local\Temp\[Hentai JOI] MrsNuzuki Patreon 2023.exe"
C:\Users\Admin\AppData\Roaming\Adobe\.exe
"C:\Users\Admin\AppData\Roaming\Adobe\.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2136 -s 720
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | moscow-post.com | udp |
| RU | 185.71.67.60:80 | moscow-post.com | tcp |
| US | 8.8.8.8:53 | www.moscow-post.com | udp |
| RU | 185.71.67.60:80 | www.moscow-post.com | tcp |
| US | 8.8.8.8:53 | www.moscow-post.su | udp |
| RU | 185.71.67.60:80 | www.moscow-post.su | tcp |
Files
memory/2260-0-0x0000000000FA0000-0x0000000001016000-memory.dmp
memory/2260-1-0x00000000747D0000-0x0000000074EBE000-memory.dmp
memory/2260-2-0x0000000004AE0000-0x0000000004B20000-memory.dmp
C:\Users\Admin\AppData\Roaming\Adobe\.exe
| MD5 | ccbede8d2869535347316a479f0b8095 |
| SHA1 | 1dd0e7574972260c77ca90638950d83c7b00d8f2 |
| SHA256 | afae663cab910a67e7fb519797ff385926b77ee59fa0e96e1853318146d2e179 |
| SHA512 | 9a0de846ced51215948a16300aec8aeb7cf0ef5c0005a3cb661fc27e85b5d25b3b3278e7c91fbedc9d0a1ec686fdcd8ff07f35b39931a7c28c8b2139dabf4456 |
memory/2260-13-0x0000000004B60000-0x0000000004B9D000-memory.dmp
memory/2260-15-0x00000000747D0000-0x0000000074EBE000-memory.dmp
memory/2136-14-0x0000000000400000-0x000000000043D000-memory.dmp
memory/2260-11-0x0000000004B60000-0x0000000004B9D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-25 06:14
Reported
2023-12-25 06:16
Platform
win10v2004-20231215-en
Max time kernel
1s
Max time network
149s
Command Line
Signatures
Mars Stealer
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Roaming\Microsoft\BYN8.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\[Hentai JOI] MrsNuzuki Patreon 2023.exe
"C:\Users\Admin\AppData\Local\Temp\[Hentai JOI] MrsNuzuki Patreon 2023.exe"
C:\Users\Admin\AppData\Roaming\Microsoft\BYN8.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\BYN8.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2116 -ip 2116
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 1376
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| 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 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| GB | 87.248.205.0:80 | tcp | |
| GB | 87.248.205.0:80 | tcp | |
| US | 8.8.8.8:53 | 32.134.221.88.in-addr.arpa | udp |
| GB | 96.16.110.41:443 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 20.231.121.79:80 | tcp | |
| US | 20.3.187.198:443 | tcp |
Files
memory/2360-1-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/2360-0-0x0000000000920000-0x0000000000996000-memory.dmp
memory/2360-2-0x0000000005440000-0x0000000005450000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\BYN8.exe
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |
memory/2116-12-0x0000000000400000-0x000000000043D000-memory.dmp
memory/2360-13-0x0000000074790000-0x0000000074F40000-memory.dmp
memory/2116-15-0x0000000000400000-0x000000000043D000-memory.dmp