Analysis Overview
SHA256
556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74
Threat Level: Known bad
The file 556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74 was found to be: Known bad.
Malicious Activity Summary
Gozi family
Loads dropped DLL
Enumerates connected drives
Writes to the Master Boot Record (MBR)
Unsigned PE
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-11 00:15
Signatures
Gozi family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-11 00:15
Reported
2024-05-11 00:17
Platform
win7-20240221-en
Max time kernel
119s
Max time network
119s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\F: | C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe | N/A |
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe
"C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | master.etl.desktop.qq.com | udp |
| US | 8.8.8.8:53 | oth.eve.mdt.qq.com | udp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| SG | 101.33.47.68:8081 | oth.eve.mdt.qq.com | tcp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| CN | 113.105.95.120:443 | tcp | |
| CN | 125.39.120.82:443 | tcp |
Files
\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll
| MD5 | 2814acbd607ba47bdbcdf6ac3076ee95 |
| SHA1 | 50ab892071bed2bb2365ca1d4bf5594e71c6b13b |
| SHA256 | 5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67 |
| SHA512 | 34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498 |
memory/2096-5-0x0000000000120000-0x000000000012A000-memory.dmp
memory/2096-4-0x0000000000120000-0x000000000012A000-memory.dmp
memory/2096-11-0x0000000000120000-0x000000000012A000-memory.dmp
memory/2096-10-0x0000000000120000-0x000000000012A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-11 00:15
Reported
2024-05-11 00:18
Platform
win10v2004-20240426-en
Max time kernel
150s
Max time network
152s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\F: | C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe | N/A |
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe
"C:\Users\Admin\AppData\Local\Temp\556cc89738e8c26fea34b6964e74da80ef1eca772d75f258b435fa8a4ce30f74.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | master.etl.desktop.qq.com | udp |
| US | 8.8.8.8:53 | oth.eve.mdt.qq.com | udp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| SG | 101.33.47.206:8081 | oth.eve.mdt.qq.com | tcp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.47.33.101.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.14.97.104.in-addr.arpa | udp |
| CN | 113.105.95.120:443 | tcp | |
| CN | 125.39.120.82:443 | tcp | |
| US | 8.8.8.8:53 | 45.19.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.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 | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.173.189.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll
| MD5 | 2814acbd607ba47bdbcdf6ac3076ee95 |
| SHA1 | 50ab892071bed2bb2365ca1d4bf5594e71c6b13b |
| SHA256 | 5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67 |
| SHA512 | 34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498 |