Analysis Overview
SHA256
b795c753801bab817e22cb80e681ea0a327040f9c160a3f69751ff09967609ce
Threat Level: Known bad
The file ae3bf46e7d8a23bcb652d4c401bd2faa.exe was found to be: Known bad.
Malicious Activity Summary
Modifies visiblity of hidden/system files in Explorer
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-07 19:36
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-07 19:36
Reported
2024-01-07 19:38
Platform
win7-20231129-en
Max time kernel
5s
Max time network
121s
Command Line
Signatures
Modifies visiblity of hidden/system files in Explorer
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | C:\Users\Admin\kfxueb.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\kfxueb.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ae3bf46e7d8a23bcb652d4c401bd2faa.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ae3bf46e7d8a23bcb652d4c401bd2faa.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000\Software\Microsoft\Windows\CurrentVersion\Run\kfxueb = "C:\\Users\\Admin\\kfxueb.exe" | C:\Users\Admin\kfxueb.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\kfxueb.exe | N/A |
| N/A | N/A | C:\Users\Admin\kfxueb.exe | N/A |
| N/A | N/A | C:\Users\Admin\kfxueb.exe | N/A |
| N/A | N/A | C:\Users\Admin\kfxueb.exe | N/A |
| N/A | N/A | C:\Users\Admin\kfxueb.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ae3bf46e7d8a23bcb652d4c401bd2faa.exe | N/A |
| N/A | N/A | C:\Users\Admin\kfxueb.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ae3bf46e7d8a23bcb652d4c401bd2faa.exe
"C:\Users\Admin\AppData\Local\Temp\ae3bf46e7d8a23bcb652d4c401bd2faa.exe"
C:\Users\Admin\kfxueb.exe
"C:\Users\Admin\kfxueb.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ns2.thepicturehut.net | udp |
Files
C:\Users\Admin\kfxueb.exe
| MD5 | d41d8cd98f00b204e9800998ecf8427e |
| SHA1 | da39a3ee5e6b4b0d3255bfef95601890afd80709 |
| SHA256 | e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855 |
| SHA512 | cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e |
\Users\Admin\kfxueb.exe
| MD5 | ae9623bb0aec9580a214f143c3f5e304 |
| SHA1 | 751e5946d9f6418cac50baeb6068abad12842c78 |
| SHA256 | bdff796c39cbc01b3fb5166a2e15a670d1f542cbba66a3fcb163b42012a1e043 |
| SHA512 | 63c286751dea65788adc7837da6c7f9be6afdf567ceb50c6063fe8ab7cc3f1f79932b4cbf33e78bcc750373b7af6f6c08e0ed2270e7f5d3165f50c329b8328bc |
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-07 19:36
Reported
2024-01-07 19:38
Platform
win10v2004-20231222-en
Max time kernel
150s
Max time network
145s
Command Line
Signatures
Modifies visiblity of hidden/system files in Explorer
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" | C:\Users\Admin\tugeb.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\ae3bf46e7d8a23bcb652d4c401bd2faa.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\tugeb.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\tugeb = "C:\\Users\\Admin\\tugeb.exe" | C:\Users\Admin\tugeb.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ae3bf46e7d8a23bcb652d4c401bd2faa.exe | N/A |
| N/A | N/A | C:\Users\Admin\tugeb.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ae3bf46e7d8a23bcb652d4c401bd2faa.exe
"C:\Users\Admin\AppData\Local\Temp\ae3bf46e7d8a23bcb652d4c401bd2faa.exe"
C:\Users\Admin\tugeb.exe
"C:\Users\Admin\tugeb.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ns4.thepicturehut.net | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.1.37.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 174.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 16.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 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 |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.179.17.96.in-addr.arpa | udp |
Files
C:\Users\Admin\tugeb.exe
| MD5 | 421ad7147c1fd143575c6f1d41daf878 |
| SHA1 | 31257dee121381b5f46bd6db736279685d3003e9 |
| SHA256 | 4140a079b1a6ba1da94e371134bf391aa4c6cb59d18993d0f75601a95ae193cb |
| SHA512 | 3b960de1b09c089bd6af194cb9bc5052ea2dd4c8722141b721c0e9abb5a0128dba1903275af50e54da0cbce50a61896965e26febf5a9867885270e1475557597 |