Analysis Overview
SHA256
4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1
Threat Level: Known bad
The file 4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Modifies firewall policy service
Darkcomet family
Modifies WinLogon for persistence
Sets file to hidden
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
UPX packed file
Adds Run key to start application
Drops file in System32 directory
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
Views/modifies file attributes
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-05-21 12:25
Signatures
Darkcomet family
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-21 12:25
Reported
2024-05-21 12:27
Platform
win7-20240419-en
Max time kernel
150s
Max time network
122s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\winlogon.exe" | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Windows\SysWOW64\winlogon.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Windows\SysWOW64\winlogon.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Windows\SysWOW64\winlogon.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\winlogon.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\Windows\\system32\\winlogon.exe" | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\Windows\\system32\\winlogon.exe" | C:\Windows\SysWOW64\winlogon.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\Windows\\system32\\winlogon.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\ | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
| File created | C:\Windows\SysWOW64\winlogon.exe | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\winlogon.exe | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2736 set thread context of 2752 | N/A | C:\Windows\SysWOW64\winlogon.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\winlogon.exe
"C:\Windows\system32\winlogon.exe"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | bssbig.no-ip.org | udp |
| US | 8.8.8.8:53 | zymic99k.no-ip.org | udp |
Files
memory/1860-0-0x0000000000400000-0x00000000004C7000-memory.dmp
memory/1860-1-0x00000000003E0000-0x00000000003E1000-memory.dmp
\Windows\SysWOW64\winlogon.exe
| MD5 | d34affe27303efd466527f7e2580a950 |
| SHA1 | 515522de0fc8f037c5f5800b1c1db784f5390b87 |
| SHA256 | 4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1 |
| SHA512 | 930d9a31e7e141a8c4af56cac68fb5d0e676c8b2ddb7acc77334dde474f8eeb33ca4295983eb76f3e9d8e6b0890b79f5c647110286c9b17e7059b9ada8b9504f |
memory/2736-15-0x0000000000400000-0x00000000004C7000-memory.dmp
memory/1860-13-0x0000000004480000-0x0000000004547000-memory.dmp
memory/1860-12-0x0000000004480000-0x0000000004547000-memory.dmp
memory/2736-19-0x0000000000400000-0x00000000004C7000-memory.dmp
memory/2752-17-0x0000000000400000-0x00000000004C7000-memory.dmp
memory/2464-20-0x0000000000080000-0x0000000000081000-memory.dmp
memory/2464-58-0x00000000001D0000-0x00000000001D1000-memory.dmp
memory/1860-59-0x0000000000400000-0x00000000004C7000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-21 12:25
Reported
2024-05-21 12:27
Platform
win10v2004-20240426-en
Max time kernel
136s
Max time network
105s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\winlogon.exe" | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\Windows\\system32\\winlogon.exe" | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\winlogon.exe | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\winlogon.exe | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1_NeikiAnalytics.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
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 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 160.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 227.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.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 |
Files
memory/1404-0-0x0000000000400000-0x00000000004C7000-memory.dmp
memory/1404-1-0x00000000009F0000-0x00000000009F1000-memory.dmp
C:\Windows\SysWOW64\winlogon.exe
| MD5 | d34affe27303efd466527f7e2580a950 |
| SHA1 | 515522de0fc8f037c5f5800b1c1db784f5390b87 |
| SHA256 | 4a05ce132b97e62e2d53803e7f89d02bd3c57424e62699aea43c098fc1455fa1 |
| SHA512 | 930d9a31e7e141a8c4af56cac68fb5d0e676c8b2ddb7acc77334dde474f8eeb33ca4295983eb76f3e9d8e6b0890b79f5c647110286c9b17e7059b9ada8b9504f |
memory/1404-62-0x0000000000400000-0x00000000004C7000-memory.dmp