Analysis Overview
SHA256
3f283257101f1d8df573c4afce1addb1c48891a0ab6d278e64e84dabfad766d4
Threat Level: Known bad
The file 4662bc8b2cd5a9b9bfd3ebb0e2d45684 was found to be: Known bad.
Malicious Activity Summary
NanoCore
Executes dropped EXE
Checks computer location settings
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-06 13:47
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-06 13:47
Reported
2024-01-06 13:50
Platform
win7-20231215-en
Max time kernel
148s
Max time network
153s
Command Line
Signatures
NanoCore
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4662bc8b2cd5a9b9bfd3ebb0e2d45684.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4662bc8b2cd5a9b9bfd3ebb0e2d45684.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4662bc8b2cd5a9b9bfd3ebb0e2d45684.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4662bc8b2cd5a9b9bfd3ebb0e2d45684.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\81252489\\bffmore.exe C:\\Users\\Admin\\AppData\\Roaming\\81252489\\urlm.avg" | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2624 set thread context of 1164 | N/A | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4662bc8b2cd5a9b9bfd3ebb0e2d45684.exe
"C:\Users\Admin\AppData\Local\Temp\4662bc8b2cd5a9b9bfd3ebb0e2d45684.exe"
C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe
"C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe" urlm.avg
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "LAN Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpEB58.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
Files
\Users\Admin\AppData\Roaming\81252489\bffmore.exe
| MD5 | 71d8f6d5dc35517275bc38ebcc815f9f |
| SHA1 | cae4e8c730de5a01d30aabeb3e5cb2136090ed8d |
| SHA256 | fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b |
| SHA512 | 4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59 |
C:\Users\Admin\AppData\Roaming\81252489\urlm.avg
| MD5 | f29fa59fb7608f7d2d89711399e07c5f |
| SHA1 | 9c2a1ef1b6ed7e77b80489d55bfd66e1f2bdedff |
| SHA256 | bf76bcdd34083dcb0daf72ce02d74f088f508810c5d927bbe0b35cb5f6f79aac |
| SHA512 | 343f9c3e2e989e1d80a4d45d650413b6b8b4f8b6afdac70b973ca3950add56015a76eae4a314c7d28c6e93929fd4e4e3fb1ccbadaafc151ca8d624cb7f693992 |
C:\Users\Admin\AppData\Roaming\81252489\xobkk.log
| MD5 | 61085555250f8b31da9c9ac34227aba5 |
| SHA1 | 19287b6d6ac2efd33ed5c480c04ce46b9ff27f02 |
| SHA256 | af708eee368e82354127ff068bfb6b09bd005845fcbe951c4a27cf4a84a45b2d |
| SHA512 | 30bdc7367d271b330f36b1f8885e27d0ca9d121977a70e70dd23c6c697b2bc495fb538d99a18fb6898087f4a60487df4eb5289469612074f95ca66823347c6a7 |
memory/1164-69-0x0000000000AD0000-0x0000000001AD0000-memory.dmp
memory/1164-70-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1164-71-0x0000000000AD0000-0x0000000001AD0000-memory.dmp
memory/1164-73-0x0000000000AD0000-0x0000000001AD0000-memory.dmp
memory/1164-75-0x0000000000AD0000-0x0000000001AD0000-memory.dmp
memory/1164-76-0x0000000000AD0000-0x0000000000B08000-memory.dmp
memory/1164-77-0x0000000074040000-0x000000007472E000-memory.dmp
memory/1164-78-0x0000000009D00000-0x0000000009D40000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpEB58.tmp
| MD5 | 8cad1b41587ced0f1e74396794f31d58 |
| SHA1 | 11054bf74fcf5e8e412768035e4dae43aa7b710f |
| SHA256 | 3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c |
| SHA512 | 99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef |
memory/1164-83-0x0000000000A20000-0x0000000000A2A000-memory.dmp
memory/1164-84-0x0000000000A30000-0x0000000000A4E000-memory.dmp
memory/1164-86-0x0000000009D00000-0x0000000009D40000-memory.dmp
memory/1164-85-0x0000000000A50000-0x0000000000A5A000-memory.dmp
memory/1164-87-0x0000000074040000-0x000000007472E000-memory.dmp
memory/1164-88-0x0000000009D00000-0x0000000009D40000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-06 13:47
Reported
2024-01-06 13:50
Platform
win10v2004-20231215-en
Max time kernel
151s
Max time network
160s
Command Line
Signatures
NanoCore
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\4662bc8b2cd5a9b9bfd3ebb0e2d45684.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\81252489\\bffmore.exe C:\\Users\\Admin\\AppData\\Roaming\\81252489\\urlm.avg" | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1964 set thread context of 696 | N/A | C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4662bc8b2cd5a9b9bfd3ebb0e2d45684.exe
"C:\Users\Admin\AppData\Local\Temp\4662bc8b2cd5a9b9bfd3ebb0e2d45684.exe"
C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe
"C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe" urlm.avg
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4AFE.tmp"
Network
| Country | Destination | Domain | Proto |
| NL | 52.142.223.178:80 | tcp | |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 175.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | 4.4.8.8.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 | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| N/A | 127.0.0.1:5050 | tcp | |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | 100.5.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| US | 8.8.4.4:53 | stanpooker.hopto.org | udp |
| US | 8.8.8.8:53 | stanpooker.hopto.org | udp |
| N/A | 127.0.0.1:5050 | tcp | |
| US | 8.8.8.8:53 | 34.197.79.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 176.178.17.96.in-addr.arpa | udp |
| N/A | 127.0.0.1:5050 | tcp | |
| US | 8.8.8.8:53 | 178.178.17.96.in-addr.arpa | udp |
| N/A | 127.0.0.1:5050 | tcp | |
| US | 8.8.8.8:53 | 32.134.221.88.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Roaming\81252489\bffmore.exe
| MD5 | 71d8f6d5dc35517275bc38ebcc815f9f |
| SHA1 | cae4e8c730de5a01d30aabeb3e5cb2136090ed8d |
| SHA256 | fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b |
| SHA512 | 4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59 |
C:\Users\Admin\AppData\Roaming\81252489\urlm.avg
| MD5 | f29fa59fb7608f7d2d89711399e07c5f |
| SHA1 | 9c2a1ef1b6ed7e77b80489d55bfd66e1f2bdedff |
| SHA256 | bf76bcdd34083dcb0daf72ce02d74f088f508810c5d927bbe0b35cb5f6f79aac |
| SHA512 | 343f9c3e2e989e1d80a4d45d650413b6b8b4f8b6afdac70b973ca3950add56015a76eae4a314c7d28c6e93929fd4e4e3fb1ccbadaafc151ca8d624cb7f693992 |
C:\Users\Admin\AppData\Roaming\81252489\xobkk.log
| MD5 | 61085555250f8b31da9c9ac34227aba5 |
| SHA1 | 19287b6d6ac2efd33ed5c480c04ce46b9ff27f02 |
| SHA256 | af708eee368e82354127ff068bfb6b09bd005845fcbe951c4a27cf4a84a45b2d |
| SHA512 | 30bdc7367d271b330f36b1f8885e27d0ca9d121977a70e70dd23c6c697b2bc495fb538d99a18fb6898087f4a60487df4eb5289469612074f95ca66823347c6a7 |
memory/696-66-0x00000000005A0000-0x00000000015A0000-memory.dmp
memory/696-67-0x00000000005A0000-0x00000000005D8000-memory.dmp
memory/696-68-0x0000000073BE0000-0x0000000074390000-memory.dmp
memory/696-69-0x00000000116F0000-0x0000000011C94000-memory.dmp
memory/696-70-0x0000000073BE0000-0x0000000074390000-memory.dmp
memory/696-71-0x00000000113E0000-0x0000000011472000-memory.dmp
memory/696-72-0x0000000011480000-0x000000001151C000-memory.dmp
memory/696-73-0x0000000011350000-0x0000000011360000-memory.dmp
memory/696-74-0x00000000113A0000-0x00000000113AA000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp4AFE.tmp
| MD5 | 8cad1b41587ced0f1e74396794f31d58 |
| SHA1 | 11054bf74fcf5e8e412768035e4dae43aa7b710f |
| SHA256 | 3086d914f6b23268f8a12cb1a05516cd5465c2577e1d1e449f1b45c8e5e8f83c |
| SHA512 | 99c2ef89029de51a866df932841684b7fc912df21e10e2dd0d09e400203bbdc6cba6319a31780b7bf8b286d2cea8ea3fc7d084348bf2f002ab4f5a34218ccbef |
memory/696-79-0x00000000115E0000-0x00000000115EA000-memory.dmp
memory/696-80-0x00000000116D0000-0x00000000116EE000-memory.dmp
memory/696-81-0x0000000012340000-0x000000001234A000-memory.dmp
memory/696-82-0x0000000011350000-0x0000000011360000-memory.dmp
memory/696-83-0x0000000011350000-0x0000000011360000-memory.dmp
memory/696-84-0x0000000011350000-0x0000000011360000-memory.dmp