Analysis Overview
SHA256
668ae0ac95f0d86230704acfd42aeec2837d51e16486e96b52fcf51907b6ddbd
Threat Level: Known bad
The file 771b029ca2ea27495376d8783f14f7f9 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
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-01-26 10:25
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-26 10:25
Reported
2024-01-26 10:27
Platform
win7-20231215-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\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsvc.exe" | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.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\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2460 set thread context of 2600 | N/A | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\TCP Service\tcpsvc.exe | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
| File opened for modification | C:\Program Files (x86)\TCP Service\tcpsvc.exe | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.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
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe
"C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe"
C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe
"C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp686.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7AF.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
Files
memory/2460-0-0x00000000742C0000-0x000000007486B000-memory.dmp
memory/2460-2-0x00000000002E0000-0x0000000000320000-memory.dmp
memory/2460-1-0x00000000742C0000-0x000000007486B000-memory.dmp
memory/2460-3-0x00000000742C0000-0x000000007486B000-memory.dmp
memory/2460-4-0x00000000002E0000-0x0000000000320000-memory.dmp
memory/2460-5-0x00000000002E0000-0x0000000000320000-memory.dmp
memory/2600-6-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2600-8-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2600-10-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2600-11-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2600-14-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2600-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2600-16-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2600-18-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2600-20-0x00000000742C0000-0x000000007486B000-memory.dmp
memory/2600-21-0x00000000020C0000-0x0000000002100000-memory.dmp
memory/2460-19-0x00000000742C0000-0x000000007486B000-memory.dmp
memory/2600-22-0x00000000742C0000-0x000000007486B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp686.tmp
| MD5 | ed32dd906845ffe39bc55d203a47e9ab |
| SHA1 | 679f6ab7bc2c35f5fa5260fb35fe769df92645b5 |
| SHA256 | 4cb9909da90a374e8130b361d1774e990794b55d5677164c5a2833cfce6b7975 |
| SHA512 | f400f6d4904b3dc9e13c7a0c22ee90905823d30ee904d67b829db27111eaed81ccdfc6b32c963e2f4a2e2aa5bd4a9f1fca5490327d9cdb4c544dfad398180091 |
C:\Users\Admin\AppData\Local\Temp\tmp7AF.tmp
| MD5 | 9db6095f31f8b4ae8173fe11424a8dfe |
| SHA1 | 4b0655ae95def24a41710ca137649d93bfa49407 |
| SHA256 | 9911b4513e44521c90c020ddcddea1ddc58095055a72ec638b593bf9ee23aa72 |
| SHA512 | 5bee977264545a30a2d53e674f54a4066d4529dc9162d46911b9cac957052cdc1ea7c8d60f9c57d3f33db6cb964b1e6bb2347d0e0e2af0a32ac98938c02ffc1c |
memory/2600-30-0x00000000742C0000-0x000000007486B000-memory.dmp
memory/2600-31-0x00000000020C0000-0x0000000002100000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-26 10:25
Reported
2024-01-26 10:27
Platform
win10v2004-20231215-en
Max time kernel
148s
Max time network
156s
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\DHCP Service = "C:\\Program Files (x86)\\DHCP Service\\dhcpsvc.exe" | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.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\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3544 set thread context of 2796 | N/A | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\DHCP Service\dhcpsvc.exe | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
| File opened for modification | C:\Program Files (x86)\DHCP Service\dhcpsvc.exe | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.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
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe
"C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe"
C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe
"C:\Users\Admin\AppData\Local\Temp\771b029ca2ea27495376d8783f14f7f9.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DHCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCBF6.tmp"
C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DHCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD85B.tmp"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.223.142.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | 4.4.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | 89.65.42.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
| US | 8.8.4.4:53 | xp18.ddns.net | udp |
| US | 8.8.8.8:53 | xp18.ddns.net | udp |
Files
memory/3544-0-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3544-1-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3544-2-0x00000000018D0000-0x00000000018E0000-memory.dmp
memory/3544-3-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3544-4-0x00000000018D0000-0x00000000018E0000-memory.dmp
memory/3544-5-0x00000000018D0000-0x00000000018E0000-memory.dmp
memory/2796-6-0x0000000000400000-0x0000000000438000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\771b029ca2ea27495376d8783f14f7f9.exe.log
| MD5 | 5b4789d01bb4d7483b71e1a35bce6a8b |
| SHA1 | de083f2131c9a763c0d1810c97a38732146cffbf |
| SHA256 | e248cef9500ed6e0c9f99d72a2a6a36955a5f0cfc0725748ef25a733cc8282f6 |
| SHA512 | 357e18ef30430e4b9cc4f2569b9735b1cd12f934c83162e4de78ac29ba9703b63ddb624ccc22afd5a5868f6e9d91a3c64581846abac22e9625f5b2e3d80b3ede |
memory/2796-9-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/2796-10-0x00000000015A0000-0x00000000015B0000-memory.dmp
memory/2796-11-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/3544-12-0x0000000074850000-0x0000000074E01000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmpCBF6.tmp
| MD5 | ed32dd906845ffe39bc55d203a47e9ab |
| SHA1 | 679f6ab7bc2c35f5fa5260fb35fe769df92645b5 |
| SHA256 | 4cb9909da90a374e8130b361d1774e990794b55d5677164c5a2833cfce6b7975 |
| SHA512 | f400f6d4904b3dc9e13c7a0c22ee90905823d30ee904d67b829db27111eaed81ccdfc6b32c963e2f4a2e2aa5bd4a9f1fca5490327d9cdb4c544dfad398180091 |
C:\Users\Admin\AppData\Local\Temp\tmpD85B.tmp
| MD5 | 7f4b37265a0a4b0fea67999d11d911e8 |
| SHA1 | 1b8e13e6a27c3768c30cf713b79eaa8a757e1349 |
| SHA256 | 39b16b3a00b6b43c6820357127228c0768a577153014ce7b0ea3c585244dc08b |
| SHA512 | ef97ccfb663555aedc7fdc4b3ac4cd6536c80a778b4ec3bc6124a09544733988de1dac1e6a3714b0d6e8713e3523e0732d5dfcf674f2c5e1f3eadacb0c8e5e03 |
memory/2796-20-0x00000000015A0000-0x00000000015B0000-memory.dmp
memory/2796-21-0x0000000074850000-0x0000000074E01000-memory.dmp
memory/2796-22-0x00000000015A0000-0x00000000015B0000-memory.dmp
memory/2796-23-0x00000000015A0000-0x00000000015B0000-memory.dmp