Analysis Overview
SHA256
f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117
Threat Level: Known bad
The file f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117 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
2024-05-10 23:18
Signatures
Gozi family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-10 23:18
Reported
2024-05-10 23:21
Platform
win7-20231129-en
Max time kernel
119s
Max time network
121s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\F: | C:\Users\Admin\AppData\Local\Temp\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.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\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.exe
"C:\Users\Admin\AppData\Local\Temp\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | oth.eve.mdt.qq.com | udp |
| US | 8.8.8.8:53 | master.etl.desktop.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 |
| 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/1368-7-0x0000000000510000-0x000000000051A000-memory.dmp
memory/1368-6-0x0000000000510000-0x000000000051A000-memory.dmp
memory/1368-11-0x0000000000510000-0x000000000051A000-memory.dmp
memory/1368-10-0x0000000000510000-0x000000000051A000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-10 23:18
Reported
2024-05-10 23:21
Platform
win10v2004-20240226-en
Max time kernel
141s
Max time network
164s
Command Line
Signatures
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.exe | N/A |
Enumerates connected drives
| Description | Indicator | Process | Target |
| File opened (read-only) | \??\F: | C:\Users\Admin\AppData\Local\Temp\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.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\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.exe
"C:\Users\Admin\AppData\Local\Temp\f631acc686776ff8b89e85780f7c31591522480d764f02bd60520bcf4a42a117.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=5248 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 13.107.246.64:443 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | 69.31.126.40.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 |
| SG | 101.33.47.206:8081 | oth.eve.mdt.qq.com | tcp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.47.33.101.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| CN | 157.255.4.39:443 | master.etl.desktop.qq.com | tcp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
| CN | 113.105.95.120:443 | tcp | |
| CN | 125.39.120.82:443 | tcp | |
| US | 8.8.8.8:53 | 25.173.189.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll
| MD5 | 2814acbd607ba47bdbcdf6ac3076ee95 |
| SHA1 | 50ab892071bed2bb2365ca1d4bf5594e71c6b13b |
| SHA256 | 5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67 |
| SHA512 | 34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498 |