Analysis Overview
SHA256
83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130
Threat Level: Known bad
The file 83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130 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
2024-02-23 18:33
Signatures
Gozi family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-23 18:33
Reported
2024-02-23 18:36
Platform
win7-20240221-en
Max time kernel
120s
Max time network
123s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\F: | C:\Users\Admin\AppData\Local\Temp\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.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\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.exe
"C:\Users\Admin\AppData\Local\Temp\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | master.etl.desktop.qq.com | udp |
| US | 8.8.8.8:53 | yybadaccess.3g.qq.com | udp |
| US | 8.8.8.8:53 | oth.eve.mdt.qq.com | udp |
| CN | 121.14.78.51:443 | yybadaccess.3g.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 | 121.14.76.247:443 | yybadaccess.3g.qq.com | tcp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| CN | 121.14.76.43:443 | yybadaccess.3g.qq.com | tcp |
| CN | 113.105.95.120:443 | tcp | |
| SG | 101.33.47.68:8081 | oth.eve.mdt.qq.com | tcp |
| SG | 101.33.47.68:8081 | oth.eve.mdt.qq.com | tcp |
Files
\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll
| MD5 | 2814acbd607ba47bdbcdf6ac3076ee95 |
| SHA1 | 50ab892071bed2bb2365ca1d4bf5594e71c6b13b |
| SHA256 | 5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67 |
| SHA512 | 34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498 |
memory/2700-4-0x00000000002E0000-0x00000000002EA000-memory.dmp
memory/2700-7-0x00000000002E0000-0x00000000002EA000-memory.dmp
memory/2700-10-0x00000000002E0000-0x00000000002EA000-memory.dmp
memory/2700-11-0x00000000002E0000-0x00000000002EA000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-23 18:33
Reported
2024-02-23 18:36
Platform
win10v2004-20240221-en
Max time kernel
142s
Max time network
159s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\F: | C:\Users\Admin\AppData\Local\Temp\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.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\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.exe
"C:\Users\Admin\AppData\Local\Temp\83482f6f2d975d231da3262ca0f7a4b5c1f5e4ff23971ed3470556096e1e1130.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 176.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | master.etl.desktop.qq.com | udp |
| US | 8.8.8.8:53 | oth.eve.mdt.qq.com | udp |
| US | 8.8.8.8:53 | yybadaccess.3g.qq.com | udp |
| SG | 101.33.47.206:8081 | oth.eve.mdt.qq.com | tcp |
| CN | 121.14.76.247:443 | yybadaccess.3g.qq.com | tcp |
| US | 8.8.8.8:53 | 206.47.33.101.in-addr.arpa | udp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| CN | 121.14.76.43:443 | yybadaccess.3g.qq.com | tcp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| CN | 121.14.78.51:443 | yybadaccess.3g.qq.com | tcp |
| CN | 113.105.95.120:443 | tcp | |
| US | 8.8.8.8:53 | 193.178.17.96.in-addr.arpa | udp |
| SG | 101.33.47.206:8081 | oth.eve.mdt.qq.com | tcp |
| SG | 101.33.47.206:8081 | oth.eve.mdt.qq.com | tcp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 208.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.65.42.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll
| MD5 | 2814acbd607ba47bdbcdf6ac3076ee95 |
| SHA1 | 50ab892071bed2bb2365ca1d4bf5594e71c6b13b |
| SHA256 | 5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67 |
| SHA512 | 34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498 |