Analysis Overview
SHA256
33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2
Threat Level: Known bad
The file 33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2 was found to be: Known bad.
Malicious Activity Summary
NanoCore
Nanocore family
Adds Run key to start application
Checks whether UAC is enabled
Drops file in Program Files directory
Unsigned PE
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-01 20:16
Signatures
Nanocore family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-01 20:16
Reported
2024-05-01 20:19
Platform
win7-20231129-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
NanoCore
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsv.exe" | C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\TCP Service\tcpsv.exe | C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
| File opened for modification | C:\Program Files (x86)\TCP Service\tcpsv.exe | C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| 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:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe
"C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp118E.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp121B.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
Files
memory/624-0-0x00000000745B1000-0x00000000745B2000-memory.dmp
memory/624-1-0x00000000745B0000-0x0000000074B5B000-memory.dmp
memory/624-2-0x00000000745B0000-0x0000000074B5B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp118E.tmp
| MD5 | 738b8c70bec70e1b8baf7c485f8f21f1 |
| SHA1 | ce03d545d04974cddcb76d9271420e35aa3988fe |
| SHA256 | 20178631f0bf141384df0e447496346e0daf33208f7133da999b26a73af49b89 |
| SHA512 | 648e80c0913af44a107e146c53bcff80746e1ed36866edc752f5815ffd3fae935ae47fc69e48c48efcf11685d3d4cf6b5b5276b8f06c9aba6d1fc170c571db48 |
C:\Users\Admin\AppData\Local\Temp\tmp121B.tmp
| MD5 | 93fc3117767507c9889abd12dc667d22 |
| SHA1 | 1096e4cfa0c35756e3c3fb866c1e4c1e59115df9 |
| SHA256 | 684997dd4ce15031cec8f2f93933b1d41d7bf5cbbff655dd64377b07055c449a |
| SHA512 | e403348ee77bd3e7c45245dd5dae81c3ea130d5cf342f630982772ce5f75548b292013480e2831d68cf51349b64afde4589d4eec94b567d20f0a01e3b9549bdc |
memory/624-10-0x00000000745B0000-0x0000000074B5B000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-01 20:16
Reported
2024-05-01 20:19
Platform
win10v2004-20240419-en
Max time kernel
150s
Max time network
134s
Command Line
Signatures
NanoCore
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Service = "C:\\Program Files (x86)\\WPA Service\\wpasvc.exe" | C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA | C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\WPA Service\wpasvc.exe | C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
| File opened for modification | C:\Program Files (x86)\WPA Service\wpasvc.exe | C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| 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:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe
"C:\Users\Admin\AppData\Local\Temp\33cd194d9a7b17ca1d56590d3c8995744f6e5f7fdafa4eaf27c043b25fb846f2.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3CF9.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WPA Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3D68.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| NL | 23.62.61.194:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 4.4.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| N/A | 127.0.0.1:54984 | tcp | |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 142.53.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | 203.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.143.109.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | 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 |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| US | 8.8.4.4:53 | client245.sytes.net | udp |
| US | 8.8.8.8:53 | client245.sytes.net | udp |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp | |
| N/A | 127.0.0.1:54984 | tcp |
Files
memory/864-0-0x0000000074FC2000-0x0000000074FC3000-memory.dmp
memory/864-1-0x0000000074FC0000-0x0000000075571000-memory.dmp
memory/864-2-0x0000000074FC0000-0x0000000075571000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp3CF9.tmp
| MD5 | 738b8c70bec70e1b8baf7c485f8f21f1 |
| SHA1 | ce03d545d04974cddcb76d9271420e35aa3988fe |
| SHA256 | 20178631f0bf141384df0e447496346e0daf33208f7133da999b26a73af49b89 |
| SHA512 | 648e80c0913af44a107e146c53bcff80746e1ed36866edc752f5815ffd3fae935ae47fc69e48c48efcf11685d3d4cf6b5b5276b8f06c9aba6d1fc170c571db48 |
C:\Users\Admin\AppData\Local\Temp\tmp3D68.tmp
| MD5 | 1c18d34e4c00b9a6b81126a2f10bbb74 |
| SHA1 | 9c975e7627bdb8d7af3615684d59fa02c3b81902 |
| SHA256 | ee68aecf2917fd9ddd167e6403d3149ac3dd7f346f3c9c66b6d75620b0ccd621 |
| SHA512 | 75a3ecebd55c8e433199122925c7c612fe3ea23a93fbca10ed83c80f11396da428581e36c42e98a0eef5210630cea040ed0da076bfcb620ddb38dee7152b816d |
memory/864-10-0x0000000074FC0000-0x0000000075571000-memory.dmp
memory/864-11-0x0000000074FC2000-0x0000000074FC3000-memory.dmp
memory/864-12-0x0000000074FC0000-0x0000000075571000-memory.dmp
memory/864-13-0x0000000074FC0000-0x0000000075571000-memory.dmp