Analysis Overview
SHA256
340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df
Threat Level: Known bad
The file 340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df was found to be: Known bad.
Malicious Activity Summary
NanoCore
Checks whether UAC is enabled
Adds Run key to start application
Suspicious use of SetThreadContext
Drops file in Program Files directory
Unsigned PE
Creates scheduled task(s)
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-04 01:31
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2023-12-04 01:31
Reported
2023-12-04 01:34
Platform
win10v2004-20231130-en
Max time kernel
144s
Max time network
149s
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\NAT Service = "C:\\Program Files (x86)\\NAT Service\\natsv.exe" | C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.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\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4432 set thread context of 1200 | N/A | C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe | C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\NAT Service\natsv.exe | C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe | N/A |
| File opened for modification | C:\Program Files (x86)\NAT Service\natsv.exe | C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.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\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe
"C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe"
C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe
"C:\Users\Admin\AppData\Local\Temp\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "NAT Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp85AB.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "NAT Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8609.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | btldinc7.sytes.net | udp |
| US | 8.8.4.4:53 | btldinc7.sytes.net | udp |
| US | 8.8.8.8:53 | 4.4.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | btldinc7.sytes.net | udp |
| US | 8.8.4.4:53 | btldinc7.sytes.net | udp |
| US | 8.8.8.8:53 | btldinc7.sytes.net | udp |
| US | 8.8.8.8:53 | btldinc7.sytes.net | udp |
| US | 8.8.4.4:53 | btldinc7.sytes.net | udp |
| US | 8.8.8.8:53 | btldinc7.sytes.net | udp |
| N/A | 127.0.0.1:4510 | tcp | |
| N/A | 127.0.0.1:4510 | tcp | |
| N/A | 127.0.0.1:4510 | tcp | |
| US | 8.8.8.8:53 | btldinc7.sytes.net | udp |
Files
memory/4432-0-0x0000000000440000-0x00000000004DA000-memory.dmp
memory/4432-1-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/4432-2-0x0000000002880000-0x0000000002890000-memory.dmp
memory/4432-3-0x0000000005540000-0x0000000005AE4000-memory.dmp
memory/4432-4-0x0000000005080000-0x0000000005112000-memory.dmp
memory/4432-5-0x00000000054A0000-0x00000000054AA000-memory.dmp
memory/4432-6-0x00000000054B0000-0x00000000054C8000-memory.dmp
memory/4432-7-0x00000000054F0000-0x00000000054F8000-memory.dmp
memory/4432-8-0x0000000005500000-0x000000000550A000-memory.dmp
memory/4432-9-0x0000000006560000-0x00000000065D2000-memory.dmp
memory/4432-10-0x0000000006290000-0x000000000632C000-memory.dmp
memory/1200-11-0x0000000000400000-0x0000000000438000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\340afda65e77e299379392aa25dd7dd040d1a87e51f2249547d083a1d85641df.exe.log
| MD5 | 93d52c1bc7c38d958583ebbd3dc09cd4 |
| SHA1 | 4c5ee6f9c9ae190c9a0cccb91fa2257ddcb8b0d5 |
| SHA256 | 2905f3a06dd8907ddbcbe64389cffcc8a5273d1822e25f8bea385bdd01653c76 |
| SHA512 | dfc55c3247d7734c5a531fb5a3de689e8bb823e82c14ad6cab16923d50d51e03e5e86165a7d65b3059a66b67968b611368b010a6d9f755916b01ef7b67c5228e |
memory/1200-14-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/4432-15-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/1200-16-0x0000000005300000-0x0000000005310000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp85AB.tmp
| MD5 | 03f5b9ec9db6068a5562292b3012ed49 |
| SHA1 | 304033e8fde3f437b9a0a2c60671574f042e8799 |
| SHA256 | 8422cf40de0753ca59d6a62f065b5b53b48602577db47da313ae28f6c783f37d |
| SHA512 | c0fc6adfe0a354677d1e5d91b466b3a6dbd2d912deb49a0707bc9d41e3915953701877a20a8a9da3a0655eec57ee98a5430817ec51af706706232cda543b13f0 |
C:\Users\Admin\AppData\Local\Temp\tmp8609.tmp
| MD5 | cd8e69b89899eb65a199cc8019e502ad |
| SHA1 | 19ae04c02d02e2828e4513de66734c383660d1a5 |
| SHA256 | cf1a9b78745b0f788fea2f579f1e3a82efc7425edb1f35abb8dd8e1cbaaf03ef |
| SHA512 | 9a2bf35fc687ec6ac81ad3fe16f82f104ad880be6b36afc7297264de09d50e85d9d3376ed9378d56b08ef94ca700b886cc40768587fc623c7fb6117265bd7033 |
memory/1200-24-0x00000000051A0000-0x00000000051AA000-memory.dmp
memory/1200-25-0x00000000052E0000-0x00000000052FE000-memory.dmp
memory/1200-26-0x0000000005520000-0x000000000552A000-memory.dmp
memory/1200-27-0x0000000074610000-0x0000000074DC0000-memory.dmp
memory/1200-28-0x0000000005300000-0x0000000005310000-memory.dmp