Analysis Overview
SHA256
de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4
Threat Level: Known bad
The file de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
AsyncRat
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
Detects executables embedding command execution via IExecuteCommand COM object
Detects file containing reversed ASEP Autorun registry keys
Detects executables potentially checking for WinJail sandbox window
Detects executables containing artifacts associated with disabling Widnows Defender
Checks computer location settings
Drops startup file
Adds Run key to start application
Suspicious use of SetThreadContext
Suspicious use of NtSetInformationThreadHideFromDebugger
Enumerates physical storage devices
Program crash
Suspicious use of WriteProcessMemory
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-29 01:50
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-29 01:50
Reported
2024-06-29 01:52
Platform
win7-20240611-en
Max time kernel
136s
Max time network
145s
Command Line
Signatures
AsyncRat
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe\"" | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
Detects executables containing artifacts associated with disabling Widnows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables embedding command execution via IExecuteCommand COM object
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables potentially checking for WinJail sandbox window
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detects file containing reversed ASEP Autorun registry keys
| 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 |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Windows\CurrentVersion\Run\<Unknown> = "C:\\Users\\Admin\\AppData\\Local\\Temp\\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe" | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Windows\CurrentVersion\Run\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe" | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2344 set thread context of 2768 | N/A | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe
"C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
C:\Windows\SysWOW64\timeout.exe
timeout 1
C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe
"C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2344 -s 784
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | hgjvhnfgg.duckdns.org | udp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
| US | 8.8.8.8:53 | hgjvhnfgg.duckdns.org | udp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
Files
memory/2344-0-0x000000007468E000-0x000000007468F000-memory.dmp
memory/2344-1-0x00000000013C0000-0x000000000149C000-memory.dmp
memory/2344-2-0x0000000074680000-0x0000000074D6E000-memory.dmp
memory/2344-3-0x00000000002F0000-0x0000000000318000-memory.dmp
memory/2768-6-0x0000000000400000-0x0000000000412000-memory.dmp
memory/2768-11-0x0000000000400000-0x0000000000412000-memory.dmp
memory/2768-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2768-8-0x0000000000400000-0x0000000000412000-memory.dmp
memory/2768-7-0x0000000000400000-0x0000000000412000-memory.dmp
memory/2768-5-0x0000000000400000-0x0000000000412000-memory.dmp
memory/2768-13-0x0000000000400000-0x0000000000412000-memory.dmp
memory/2768-15-0x0000000000400000-0x0000000000412000-memory.dmp
memory/2344-16-0x000000007468E000-0x000000007468F000-memory.dmp
memory/2344-17-0x0000000074680000-0x0000000074D6E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-29 01:50
Reported
2024-06-29 01:52
Platform
win10v2004-20240611-en
Max time kernel
140s
Max time network
147s
Command Line
Signatures
AsyncRat
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe\"" | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
Detects executables containing artifacts associated with disabling Widnows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables embedding command execution via IExecuteCommand COM object
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Detects executables potentially checking for WinJail sandbox window
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Detects file containing reversed ASEP Autorun registry keys
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\<Unknown> = "C:\\Users\\Admin\\AppData\\Local\\Temp\\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe" | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe" | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4192 set thread context of 2984 | N/A | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe
"C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
C:\Windows\SysWOW64\timeout.exe
timeout 1
C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe
"C:\Users\Admin\AppData\Local\Temp\de8636c5d87d276a4971eab3cbe5d3d3bb18618e8a24ae27b154e1548bd438a4.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4192 -ip 4192
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4192 -s 1252
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 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | hgjvhnfgg.duckdns.org | udp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 20.42.73.26:443 | tcp | |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
| US | 8.8.8.8:53 | hgjvhnfgg.duckdns.org | udp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
| US | 8.8.8.8:53 | 164.189.21.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
| CO | 177.255.91.168:8057 | hgjvhnfgg.duckdns.org | tcp |
Files
memory/4192-0-0x00000000745DE000-0x00000000745DF000-memory.dmp
memory/4192-1-0x0000000000940000-0x0000000000A1C000-memory.dmp
memory/4192-2-0x0000000005380000-0x000000000541C000-memory.dmp
memory/4192-3-0x00000000745D0000-0x0000000074D80000-memory.dmp
memory/4192-4-0x0000000005340000-0x0000000005368000-memory.dmp
memory/4192-5-0x0000000005BA0000-0x0000000006144000-memory.dmp
memory/2984-7-0x0000000000400000-0x0000000000412000-memory.dmp
memory/2984-8-0x00000000745D0000-0x0000000074D80000-memory.dmp
memory/4192-9-0x00000000745D0000-0x0000000074D80000-memory.dmp
memory/2984-10-0x00000000745D0000-0x0000000074D80000-memory.dmp
memory/2984-11-0x00000000745D0000-0x0000000074D80000-memory.dmp