Analysis Overview
SHA256
1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153
Threat Level: Known bad
The file 1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153 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
2024-02-06 21:36
Signatures
Gozi family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-06 21:36
Reported
2024-02-06 21:39
Platform
win10v2004-20231222-en
Max time kernel
91s
Max time network
126s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\F: | C:\Users\Admin\AppData\Local\Temp\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.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\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.exe
"C:\Users\Admin\AppData\Local\Temp\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | master.etl.desktop.qq.com | udp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| US | 8.8.8.8:53 | oth.eve.mdt.qq.com | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 192.178.17.96.in-addr.arpa | udp |
| SG | 101.33.47.206:8081 | oth.eve.mdt.qq.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.47.33.101.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.160.77.104.in-addr.arpa | udp |
| CN | 113.105.95.120:443 | tcp | |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| CN | 125.39.120.82:443 | tcp | |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll
| MD5 | 76ad55d85d1e835fbd8b3ff5e0c09712 |
| SHA1 | adcf0613e4a8ece68af8a1a61354a30c947864db |
| SHA256 | 297e3f2cc55fc676bdcf36c4a285fc36332836d4a6031bd851e84e5af30e1a22 |
| SHA512 | 3cbc73b9a18c5df57b3a09b430ddad4460cec2ed1bd0e0e665012e36ad93f4ec35c0d70d508c2ecce6d58772048103b5b727ea630304658b2aadfeb4965b74b0 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-06 21:36
Reported
2024-02-06 21:39
Platform
win7-20231215-en
Max time kernel
119s
Max time network
123s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\F: | C:\Users\Admin\AppData\Local\Temp\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.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\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.exe
"C:\Users\Admin\AppData\Local\Temp\1f69fb533ac201af0be40e8cd48a94d3f5bdc9c35aefa694584ff128a15fe153.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | master.etl.desktop.qq.com | udp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| US | 8.8.8.8:53 | oth.eve.mdt.qq.com | udp |
| 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/1936-5-0x0000000000120000-0x000000000012A000-memory.dmp
memory/1936-4-0x0000000000120000-0x000000000012A000-memory.dmp
memory/1936-10-0x0000000000120000-0x000000000012A000-memory.dmp
memory/1936-11-0x0000000000120000-0x000000000012A000-memory.dmp