Analysis Overview
SHA256
87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572
Threat Level: Known bad
The file 87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe was found to be: Known bad.
Malicious Activity Summary
NanoCore
Adds Run key to start application
Checks whether UAC is enabled
Suspicious use of SetThreadContext
Drops file in Program Files directory
Unsigned PE
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-11-29 16:51
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-11-29 16:51
Reported
2023-11-29 17:00
Platform
win7-20231020-en
Max time kernel
118s
Max time network
152s
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\UDP Manager = "C:\\Program Files (x86)\\UDP Manager\\udpmgr.exe" | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.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\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2172 set thread context of 2108 | N/A | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\UDP Manager\udpmgr.exe | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe | N/A |
| File opened for modification | C:\Program Files (x86)\UDP Manager\udpmgr.exe | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.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\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe
"C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe"
C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe
"C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe"
C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe
"C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe"
C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe
"C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9685.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9889.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | rn72836.sytes.net | udp |
| VN | 103.114.106.29:6696 | rn72836.sytes.net | tcp |
Files
memory/2172-0-0x0000000000220000-0x00000000002BE000-memory.dmp
memory/2172-1-0x0000000074230000-0x000000007491E000-memory.dmp
memory/2172-2-0x0000000004DF0000-0x0000000004E30000-memory.dmp
memory/2172-3-0x00000000003A0000-0x00000000003BA000-memory.dmp
memory/2172-4-0x0000000000380000-0x0000000000388000-memory.dmp
memory/2172-5-0x0000000000400000-0x000000000040A000-memory.dmp
memory/2172-6-0x00000000021D0000-0x0000000002242000-memory.dmp
memory/2108-7-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2108-9-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2108-11-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2108-13-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2108-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2108-17-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2108-19-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2108-21-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2108-22-0x0000000074230000-0x000000007491E000-memory.dmp
memory/2172-23-0x0000000074230000-0x000000007491E000-memory.dmp
memory/2108-24-0x0000000000550000-0x0000000000590000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp9685.tmp
| MD5 | 47158b877b6bff2f98a58ab041bec04f |
| SHA1 | bfb2da813de1b3f20fa71c2b33ab673fa787c6e0 |
| SHA256 | 4d6d78cb97d61e2a0ac5c407d6b0e42be7d8c2580c41eee67fa0c7de211e7a17 |
| SHA512 | 66a65e28637cac72d75a384cc5f770d762980af6deb5cb7b00d8f6a1b63f7860dbfe0b3f2b62f1abfc0c4909f6aa1ba779b0e7586622dcbc1dba08bd2f68c611 |
C:\Users\Admin\AppData\Local\Temp\tmp9889.tmp
| MD5 | c1c4b266e129249076bbe8a15cc5e06c |
| SHA1 | 312b8173c264245c834eee91e05dcca845c341f8 |
| SHA256 | f336d06dcadca621be6b2dc9493dcb84d871497e65142bc9fdd72c9f250a1b7b |
| SHA512 | 0f02ec7700f89d95d29014eec42d13c85234351c3fe1dc6a3efeea52ea76ca4bea3151567a6c798b5ce658d481b424646b43d93e95ccad897356a87a25d45041 |
memory/2108-32-0x00000000003E0000-0x00000000003EA000-memory.dmp
memory/2108-33-0x0000000000590000-0x00000000005AE000-memory.dmp
memory/2108-34-0x00000000003F0000-0x00000000003FA000-memory.dmp
memory/2108-37-0x00000000006C0000-0x00000000006D2000-memory.dmp
memory/2108-38-0x00000000006D0000-0x00000000006EA000-memory.dmp
memory/2108-39-0x0000000000790000-0x000000000079E000-memory.dmp
memory/2108-40-0x00000000007B0000-0x00000000007C2000-memory.dmp
memory/2108-41-0x0000000000870000-0x000000000087E000-memory.dmp
memory/2108-42-0x0000000000880000-0x000000000088C000-memory.dmp
memory/2108-43-0x0000000002060000-0x0000000002074000-memory.dmp
memory/2108-44-0x00000000021B0000-0x00000000021C0000-memory.dmp
memory/2108-45-0x00000000021C0000-0x00000000021D4000-memory.dmp
memory/2108-46-0x0000000002210000-0x000000000221E000-memory.dmp
memory/2108-47-0x0000000004F90000-0x0000000004FBE000-memory.dmp
memory/2108-48-0x0000000004DC0000-0x0000000004DD4000-memory.dmp
memory/2108-54-0x0000000074230000-0x000000007491E000-memory.dmp
memory/2108-55-0x0000000000550000-0x0000000000590000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-11-29 16:51
Reported
2023-11-29 17:00
Platform
win10v2004-20231127-en
Max time kernel
146s
Max time network
155s
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\SMTP Manager = "C:\\Program Files (x86)\\SMTP Manager\\smtpmgr.exe" | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.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\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2688 set thread context of 4752 | N/A | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\SMTP Manager\smtpmgr.exe | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe | N/A |
| File opened for modification | C:\Program Files (x86)\SMTP Manager\smtpmgr.exe | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.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\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe
"C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe"
C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe
"C:\Users\Admin\AppData\Local\Temp\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD8BC.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD979.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 22.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 126.24.238.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.1.85.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | rn72836.sytes.net | udp |
| VN | 103.114.106.29:6696 | rn72836.sytes.net | tcp |
| US | 8.8.8.8:53 | 29.106.114.103.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 254.22.238.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.173.189.20.in-addr.arpa | udp |
Files
memory/2688-1-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/2688-0-0x0000000000090000-0x000000000012E000-memory.dmp
memory/2688-2-0x00000000051A0000-0x0000000005744000-memory.dmp
memory/2688-3-0x0000000004AF0000-0x0000000004B82000-memory.dmp
memory/2688-4-0x0000000004D40000-0x0000000004D50000-memory.dmp
memory/2688-5-0x0000000004BB0000-0x0000000004BBA000-memory.dmp
memory/2688-6-0x00000000064C0000-0x00000000064DA000-memory.dmp
memory/2688-7-0x0000000004DE0000-0x0000000004DE8000-memory.dmp
memory/2688-8-0x0000000004570000-0x000000000457A000-memory.dmp
memory/2688-9-0x00000000060B0000-0x0000000006122000-memory.dmp
memory/2688-10-0x0000000009A70000-0x0000000009B0C000-memory.dmp
memory/4752-11-0x0000000000400000-0x0000000000438000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\87e9f553b96d552b75210d1a5278039153eedc43e2a10b1166f106e9eba60572exe.exe.log
| MD5 | 8ec831f3e3a3f77e4a7b9cd32b48384c |
| SHA1 | d83f09fd87c5bd86e045873c231c14836e76a05c |
| SHA256 | 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982 |
| SHA512 | 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3 |
memory/2688-15-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/4752-16-0x0000000005120000-0x0000000005130000-memory.dmp
memory/4752-14-0x0000000074660000-0x0000000074E10000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpD8BC.tmp
| MD5 | 47158b877b6bff2f98a58ab041bec04f |
| SHA1 | bfb2da813de1b3f20fa71c2b33ab673fa787c6e0 |
| SHA256 | 4d6d78cb97d61e2a0ac5c407d6b0e42be7d8c2580c41eee67fa0c7de211e7a17 |
| SHA512 | 66a65e28637cac72d75a384cc5f770d762980af6deb5cb7b00d8f6a1b63f7860dbfe0b3f2b62f1abfc0c4909f6aa1ba779b0e7586622dcbc1dba08bd2f68c611 |
C:\Users\Admin\AppData\Local\Temp\tmpD979.tmp
| MD5 | b3b017f9df206021717a11f11d895402 |
| SHA1 | e4ea12823af6550ee634536eec1eb14490580a3b |
| SHA256 | 654dfce2c28024364e679e1b958f3fb81fc6d29685d534d905d1c83a84351024 |
| SHA512 | 95666cb81aa1fd1ade04a32f63381ce8bff274d7d300c0b59cbb10a294c4d1eebaa3000365a2000b38793de030044995cf23e623c5e3648d9b00501f97ff9343 |
memory/4752-24-0x0000000005370000-0x000000000537A000-memory.dmp
memory/4752-25-0x0000000005F70000-0x0000000005F8E000-memory.dmp
memory/4752-26-0x00000000060A0000-0x00000000060AA000-memory.dmp
memory/4752-29-0x0000000006940000-0x0000000006952000-memory.dmp
memory/4752-30-0x0000000006950000-0x000000000696A000-memory.dmp
memory/4752-31-0x0000000006980000-0x000000000698E000-memory.dmp
memory/4752-32-0x0000000006990000-0x00000000069A2000-memory.dmp
memory/4752-33-0x00000000069A0000-0x00000000069AE000-memory.dmp
memory/4752-34-0x00000000069B0000-0x00000000069BC000-memory.dmp
memory/4752-35-0x00000000069C0000-0x00000000069D4000-memory.dmp
memory/4752-36-0x00000000069D0000-0x00000000069E0000-memory.dmp
memory/4752-37-0x00000000069F0000-0x0000000006A04000-memory.dmp
memory/4752-38-0x0000000006A10000-0x0000000006A1E000-memory.dmp
memory/4752-39-0x0000000006A20000-0x0000000006A4E000-memory.dmp
memory/4752-40-0x0000000006A50000-0x0000000006A64000-memory.dmp
memory/4752-41-0x0000000006C40000-0x0000000006CA6000-memory.dmp
memory/4752-48-0x0000000074660000-0x0000000074E10000-memory.dmp
memory/4752-49-0x0000000005120000-0x0000000005130000-memory.dmp