Analysis Overview
SHA256
79aa4d81cf5455a126a2b7474067f392acc392370fa6ae0a62f7e1e0271775c2
Threat Level: Known bad
The file dc2492ebf0fca4a52c41433c0e289750.exe was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
UAC bypass
XpertRAT
XpertRAT Core Payload
NirSoft MailPassView
NirSoft WebBrowserPassView
Nirsoft
Adds policy Run key to start application
UPX packed file
Windows security modification
Checks whether UAC is enabled
Adds Run key to start application
Suspicious use of SetThreadContext
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-07-22 15:37
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-06-30 00:03
Reported
2021-06-30 00:07
Platform
win7v20210408
Max time kernel
55s
Max time network
156s
Command Line
Signatures
UAC bypass
Windows security bypass
XpertRAT
XpertRAT Core Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
NirSoft WebBrowserPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Nirsoft
| 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 |
Adds policy Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.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 |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0" | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
Suspicious use of SetThreadContext
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
"C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe"
C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
"{path}"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf0.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf1.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf1.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf2.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf3.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf4.txt"
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | mertrerfeyy.duckdns.org | udp |
| N/A | 195.133.40.193:8494 | mertrerfeyy.duckdns.org | tcp |
| N/A | 195.133.40.193:8494 | mertrerfeyy.duckdns.org | tcp |
| N/A | 195.133.40.193:8494 | mertrerfeyy.duckdns.org | tcp |
Files
memory/1808-60-0x0000000000F70000-0x0000000000F71000-memory.dmp
memory/1808-62-0x0000000000C60000-0x0000000000C61000-memory.dmp
memory/1808-63-0x0000000000330000-0x0000000000332000-memory.dmp
memory/1808-64-0x0000000005BF0000-0x0000000005C6D000-memory.dmp
memory/1808-65-0x0000000000A80000-0x0000000000AAF000-memory.dmp
memory/1208-66-0x0000000000400000-0x000000000042C000-memory.dmp
memory/1208-67-0x00000000004010B8-mapping.dmp
memory/1288-70-0x0000000000400000-0x0000000000443000-memory.dmp
memory/1288-71-0x0000000000401364-mapping.dmp
memory/1844-74-0x0000000000401364-mapping.dmp
memory/1844-75-0x0000000000450000-0x00000000005A3000-memory.dmp
memory/1844-78-0x0000000075041000-0x0000000075043000-memory.dmp
memory/1544-80-0x0000000000423BC0-mapping.dmp
memory/1544-79-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1100-83-0x0000000000411654-mapping.dmp
memory/1652-84-0x0000000000400000-0x000000000041B000-memory.dmp
memory/1652-85-0x0000000000411654-mapping.dmp
memory/1616-87-0x0000000000400000-0x0000000000459000-memory.dmp
memory/1616-88-0x0000000000442F04-mapping.dmp
C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf2.txt
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |
memory/688-92-0x0000000000413750-mapping.dmp
memory/688-91-0x0000000000400000-0x0000000000416000-memory.dmp
memory/1484-95-0x000000000040C2A8-mapping.dmp
memory/1484-94-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Roaming\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\hrlwephqf4.txt
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |
Analysis: behavioral2
Detonation Overview
Submitted
2021-06-30 00:03
Reported
2021-06-30 00:06
Platform
win10v20210410
Max time kernel
37s
Max time network
130s
Command Line
Signatures
UAC bypass
Windows security bypass
XpertRAT
XpertRAT Core Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds policy Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7 = "C:\\Users\\Admin\\AppData\\Roaming\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7\\M2P7W1K1-J110-W5Y5-F7Y0-B2B7A0M6B1K7.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4056 set thread context of 3540 | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe |
| PID 3540 set thread context of 1348 | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
"C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe"
C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
"{path}"
C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
"{path}"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\dc2492ebf0fca4a52c41433c0e289750.exe
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | mertrerfeyy.duckdns.org | udp |
| N/A | 195.133.40.193:8494 | mertrerfeyy.duckdns.org | tcp |
| N/A | 195.133.40.193:8494 | mertrerfeyy.duckdns.org | tcp |
| N/A | 195.133.40.193:8494 | mertrerfeyy.duckdns.org | tcp |
Files
memory/4056-114-0x0000000000160000-0x0000000000161000-memory.dmp
memory/4056-116-0x00000000050B0000-0x00000000050B1000-memory.dmp
memory/4056-117-0x0000000004AA0000-0x0000000004AA1000-memory.dmp
memory/4056-118-0x0000000004BB0000-0x0000000004BB1000-memory.dmp
memory/4056-119-0x0000000004A80000-0x0000000004A81000-memory.dmp
memory/4056-120-0x0000000004BB0000-0x00000000050AE000-memory.dmp
memory/4056-121-0x0000000005070000-0x0000000005072000-memory.dmp
memory/4056-122-0x0000000008280000-0x00000000082FD000-memory.dmp
memory/4056-123-0x000000000AA30000-0x000000000AA5F000-memory.dmp
memory/3540-124-0x0000000000400000-0x000000000042C000-memory.dmp
memory/3540-125-0x00000000004010B8-mapping.dmp
memory/1348-128-0x0000000000400000-0x0000000000443000-memory.dmp
memory/1348-129-0x0000000000401364-mapping.dmp
memory/3540-130-0x0000000000400000-0x000000000042C000-memory.dmp
memory/1348-133-0x00000000031B0000-0x0000000003303000-memory.dmp
memory/1348-134-0x00000000031B1000-0x00000000032AD000-memory.dmp