Analysis Overview
SHA256
640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73
Threat Level: Known bad
The file 640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73 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
2024-03-22 18:09
Signatures
Gozi family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-22 18:09
Reported
2024-03-22 18:12
Platform
win7-20240221-en
Max time kernel
121s
Max time network
126s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\F: | C:\Users\Admin\AppData\Local\Temp\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.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\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.exe
"C:\Users\Admin\AppData\Local\Temp\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.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/2240-5-0x0000000000260000-0x000000000026A000-memory.dmp
memory/2240-4-0x0000000000260000-0x000000000026A000-memory.dmp
memory/2240-10-0x0000000000260000-0x000000000026A000-memory.dmp
memory/2240-11-0x0000000000260000-0x000000000026A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-22 18:09
Reported
2024-03-22 18:12
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
152s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\F: | C:\Users\Admin\AppData\Local\Temp\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.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\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.exe
"C:\Users\Admin\AppData\Local\Temp\640d5ac6695a77c1a1f3c44731841322590229378da4f115b5ec5a9c17e5fa73.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 |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.47.33.101.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 193.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 195.177.78.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 202.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 32.134.221.88.in-addr.arpa | udp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| US | 8.8.8.8:53 | 192.230.140.95.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 173.178.17.96.in-addr.arpa | udp |
| CN | 113.105.95.120:443 | tcp | |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 189.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 128.230.140.95.in-addr.arpa | udp |
| CN | 125.39.120.82:443 | tcp | |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.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 | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
C:\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll
| MD5 | 2814acbd607ba47bdbcdf6ac3076ee95 |
| SHA1 | 50ab892071bed2bb2365ca1d4bf5594e71c6b13b |
| SHA256 | 5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67 |
| SHA512 | 34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498 |