Analysis Overview
SHA256
af4586015e689d670854702df4aa5748eb90da472dc6c479f065bfb49e624d0c
Threat Level: Known bad
The file af4586015e689d670854702df4aa5748eb90da472dc6c479f065bfb49e624d0c.exe was found to be: Known bad.
Malicious Activity Summary
BlackNET
BlackNET Payload
Contains code to disable Windows Defender
Obfuscated with Agile.Net obfuscator
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Program crash
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-08-05 15:39
Signatures
Obfuscated with Agile.Net obfuscator
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2021-04-08 18:10
Reported
2021-04-08 18:16
Platform
win7v20201028
Max time kernel
144s
Max time network
118s
Command Line
Signatures
BlackNET
BlackNET Payload
| 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 |
Contains code to disable Windows Defender
| 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 |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\af4586015e689d670854702df4aa5748eb90da472dc6c479f065bfb49e624d0c.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\usymyr kilul = "C:\\Users\\Admin\\Documents\\chome_exe\\vlc.exe" | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\Run\afb3cc6e308d70ced0a4393b4c6a085d = "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\RegAsm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1100 set thread context of 1444 | N/A | C:\Users\Admin\AppData\Local\Temp\af4586015e689d670854702df4aa5748eb90da472dc6c479f065bfb49e624d0c.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\af4586015e689d670854702df4aa5748eb90da472dc6c479f065bfb49e624d0c.exe
"C:\Users\Admin\AppData\Local\Temp\af4586015e689d670854702df4aa5748eb90da472dc6c479f065bfb49e624d0c.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'usymyr kilul';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'usymyr kilul' -Value '"C:\Users\Admin\Documents\chome_exe\vlc.exe"' -PropertyType 'String'
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1444 -s 2816
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | a0524310.xsph.ru | udp |
| N/A | 141.8.192.163:80 | a0524310.xsph.ru | tcp |
Files
memory/1100-59-0x0000000000D00000-0x0000000000D01000-memory.dmp
\Users\Admin\AppData\Local\Temp\48f61eec-53fc-4051-a0a0-85b6cd68ee5f\AgileDotNetRT.dll
| MD5 | edd74be9723cdc6a5692954f0e51c9f3 |
| SHA1 | e9fb66ceee1ba4ce7e5b8271b3e1ed7cb9acf686 |
| SHA256 | 55ff1e0a4e5866d565ceeb9baafac73fdcb4464160fc6c78104d935009935cd7 |
| SHA512 | 80abecdd07f364283f216d8f4d90a4da3efd4561900631fce05c2916afeb1b5bbce23ae92d57430b7b2b06c172b2ad701b2ab75b6dfd2a861abcf7edc38462f3 |
memory/1100-63-0x0000000004900000-0x0000000004901000-memory.dmp
memory/1100-64-0x00000000003A0000-0x00000000003B6000-memory.dmp
memory/1100-65-0x00000000003C0000-0x00000000003D5000-memory.dmp
memory/1524-66-0x0000000000000000-mapping.dmp
memory/1524-67-0x00000000760C1000-0x00000000760C3000-memory.dmp
memory/1444-68-0x0000000000400000-0x0000000000418000-memory.dmp
memory/1444-69-0x00000000004123BE-mapping.dmp
memory/1444-71-0x0000000000400000-0x0000000000418000-memory.dmp
memory/1524-73-0x0000000000EC0000-0x0000000000EC1000-memory.dmp
memory/1524-74-0x0000000004920000-0x0000000004921000-memory.dmp
memory/1524-75-0x00000000045C0000-0x00000000045C1000-memory.dmp
memory/1524-76-0x00000000048E0000-0x00000000048E1000-memory.dmp
memory/1524-77-0x00000000048E2000-0x00000000048E3000-memory.dmp
memory/1444-79-0x0000000004F81000-0x0000000004F82000-memory.dmp
memory/1444-78-0x0000000004F80000-0x0000000004F81000-memory.dmp
memory/1524-80-0x0000000005240000-0x0000000005241000-memory.dmp
memory/1444-81-0x0000000004F82000-0x0000000004F83000-memory.dmp
memory/1524-84-0x00000000060A0000-0x00000000060A1000-memory.dmp
memory/1524-89-0x0000000006100000-0x0000000006101000-memory.dmp
memory/1524-90-0x0000000006170000-0x0000000006171000-memory.dmp
memory/1524-97-0x0000000006280000-0x0000000006281000-memory.dmp
memory/1444-98-0x0000000004F87000-0x0000000004F98000-memory.dmp
memory/1524-99-0x000000007EF30000-0x000000007EF31000-memory.dmp
memory/1444-102-0x0000000004F9A000-0x0000000004F9B000-memory.dmp
memory/1444-101-0x0000000004F99000-0x0000000004F9A000-memory.dmp
memory/1444-104-0x0000000004F9B000-0x0000000004F9C000-memory.dmp
memory/1444-105-0x0000000004F9C000-0x0000000004F9D000-memory.dmp
memory/1444-106-0x0000000004F9D000-0x0000000004F9E000-memory.dmp
memory/1444-108-0x0000000004F9F000-0x0000000004FA0000-memory.dmp
memory/1444-107-0x0000000004F9E000-0x0000000004F9F000-memory.dmp
memory/1444-109-0x0000000004FA0000-0x0000000004FA1000-memory.dmp
memory/1444-110-0x0000000004FA1000-0x0000000004FA2000-memory.dmp
memory/1444-111-0x0000000004FA2000-0x0000000004FA3000-memory.dmp
memory/1444-112-0x0000000004FA3000-0x0000000004FA4000-memory.dmp
memory/1292-103-0x0000000000000000-mapping.dmp
memory/1444-100-0x0000000004F98000-0x0000000004F99000-memory.dmp
memory/1444-114-0x0000000004FA5000-0x0000000004FA6000-memory.dmp
memory/1444-113-0x0000000004FA4000-0x0000000004FA5000-memory.dmp
memory/1444-115-0x0000000004FA6000-0x0000000004FA7000-memory.dmp
memory/1444-117-0x0000000004FA8000-0x0000000004FAA000-memory.dmp
memory/1444-116-0x0000000004FA7000-0x0000000004FA8000-memory.dmp
memory/1444-118-0x0000000004FAA000-0x0000000004FAC000-memory.dmp
memory/1292-119-0x0000000000630000-0x0000000000642000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-04-08 18:10
Reported
2021-04-08 18:16
Platform
win10v20201028
Max time kernel
32s
Max time network
145s
Command Line
Signatures
BlackNET
BlackNET Payload
| 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 |
Contains code to disable Windows Defender
| 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 |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\af4586015e689d670854702df4aa5748eb90da472dc6c479f065bfb49e624d0c.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\afb3cc6e308d70ced0a4393b4c6a085d = "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\RegAsm.exe" | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4764 set thread context of 568 | N/A | C:\Users\Admin\AppData\Local\Temp\af4586015e689d670854702df4aa5748eb90da472dc6c479f065bfb49e624d0c.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\af4586015e689d670854702df4aa5748eb90da472dc6c479f065bfb49e624d0c.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\af4586015e689d670854702df4aa5748eb90da472dc6c479f065bfb49e624d0c.exe
"C:\Users\Admin\AppData\Local\Temp\af4586015e689d670854702df4aa5748eb90da472dc6c479f065bfb49e624d0c.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'usymyr kilul';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'usymyr kilul' -Value '"C:\Users\Admin\Documents\chome_exe\vlc.exe"' -PropertyType 'String'
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | a0524310.xsph.ru | udp |
| N/A | 141.8.192.163:80 | a0524310.xsph.ru | tcp |
| N/A | 141.8.192.163:80 | a0524310.xsph.ru | tcp |
Files
memory/4764-114-0x00000000005E0000-0x00000000005E1000-memory.dmp
memory/4764-116-0x0000000005160000-0x0000000005161000-memory.dmp
\Users\Admin\AppData\Local\Temp\48f61eec-53fc-4051-a0a0-85b6cd68ee5f\AgileDotNetRT.dll
| MD5 | edd74be9723cdc6a5692954f0e51c9f3 |
| SHA1 | e9fb66ceee1ba4ce7e5b8271b3e1ed7cb9acf686 |
| SHA256 | 55ff1e0a4e5866d565ceeb9baafac73fdcb4464160fc6c78104d935009935cd7 |
| SHA512 | 80abecdd07f364283f216d8f4d90a4da3efd4561900631fce05c2916afeb1b5bbce23ae92d57430b7b2b06c172b2ad701b2ab75b6dfd2a861abcf7edc38462f3 |
memory/4764-118-0x0000000071BC0000-0x0000000071C40000-memory.dmp
memory/4764-119-0x0000000005670000-0x0000000005671000-memory.dmp
memory/4764-120-0x0000000005170000-0x0000000005171000-memory.dmp
memory/4764-121-0x0000000005240000-0x0000000005241000-memory.dmp
memory/4764-122-0x00000000052D0000-0x00000000052D1000-memory.dmp
memory/4764-123-0x0000000005360000-0x0000000005376000-memory.dmp
memory/4764-124-0x0000000005380000-0x0000000005395000-memory.dmp
memory/4764-125-0x00000000053E0000-0x00000000053E1000-memory.dmp
memory/3100-126-0x0000000000000000-mapping.dmp
memory/568-127-0x0000000000400000-0x0000000000418000-memory.dmp
memory/568-128-0x00000000004123BE-mapping.dmp
memory/3100-135-0x0000000007630000-0x0000000007631000-memory.dmp
memory/3100-132-0x0000000004BC0000-0x0000000004BC1000-memory.dmp
memory/3100-133-0x0000000004B70000-0x0000000004B71000-memory.dmp
memory/3100-136-0x0000000004B72000-0x0000000004B73000-memory.dmp
memory/568-137-0x0000000004D50000-0x0000000004D51000-memory.dmp
memory/3100-140-0x0000000007600000-0x0000000007601000-memory.dmp
memory/3100-142-0x0000000007CD0000-0x0000000007CD1000-memory.dmp
memory/568-143-0x0000000004FB0000-0x0000000004FB1000-memory.dmp
memory/3100-144-0x0000000007FC0000-0x0000000007FC1000-memory.dmp
memory/3100-145-0x0000000008030000-0x0000000008031000-memory.dmp
memory/3100-146-0x0000000007F90000-0x0000000007F91000-memory.dmp
memory/3100-147-0x0000000008730000-0x0000000008731000-memory.dmp
memory/568-149-0x0000000004DF0000-0x00000000052EE000-memory.dmp
memory/568-150-0x0000000004DF0000-0x00000000052EE000-memory.dmp
memory/568-152-0x0000000004DF0000-0x00000000052EE000-memory.dmp
memory/568-155-0x0000000004DF0000-0x00000000052EE000-memory.dmp
memory/568-156-0x0000000004DF0000-0x00000000052EE000-memory.dmp
memory/568-157-0x0000000004DF0000-0x00000000052EE000-memory.dmp
memory/568-158-0x0000000004DF0000-0x00000000052EE000-memory.dmp
memory/568-159-0x0000000004DF0000-0x00000000052EE000-memory.dmp
memory/3100-162-0x0000000009460000-0x0000000009461000-memory.dmp
memory/3100-163-0x0000000008920000-0x0000000008921000-memory.dmp
memory/3100-164-0x00000000093F0000-0x00000000093F1000-memory.dmp
memory/3100-169-0x0000000004B73000-0x0000000004B74000-memory.dmp