Analysis Overview
SHA256
38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f
Threat Level: Known bad
The file 38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Executes dropped EXE
UPX packed file
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Program crash
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-19 13:08
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-19 13:08
Reported
2022-10-19 13:38
Platform
win7-20220812-en
Max time kernel
150s
Max time network
150s
Command Line
Signatures
Darkcomet
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.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 |
| N/A | N/A | N/A | N/A |
Loads dropped DLL
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\msoffice = "C:\\Users\\Admin\\AppData\\Roaming\\MicrosoftOffice\\micoffice.exe" | C:\Windows\SysWOW64\reg.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\SysWOW64\reg.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1212 set thread context of 1172 | N/A | C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe | C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe |
| PID 1664 set thread context of 1768 | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe |
| PID 1664 set thread context of 1164 | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe
"C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe"
C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe
"C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\XOLGV.bat" "
C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "msoffice" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe" /f
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
"C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
"C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
"C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | shades.no-ip.org | udp |
| US | 204.95.99.66:1604 | shades.no-ip.org | tcp |
| US | 204.95.99.66:1604 | shades.no-ip.org | tcp |
| US | 204.95.99.66:1604 | shades.no-ip.org | tcp |
Files
memory/1212-56-0x0000000002CD0000-0x0000000002DA8000-memory.dmp
memory/1172-58-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1172-63-0x00000000004085D0-mapping.dmp
memory/1172-62-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1172-61-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1172-59-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1172-65-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1172-66-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1172-69-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1172-70-0x0000000076711000-0x0000000076713000-memory.dmp
memory/1704-71-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\XOLGV.bat
| MD5 | f07b93136766adced3c6f0d74d869da0 |
| SHA1 | 787c530f33687d758b41295e01d7a9a1bba3a467 |
| SHA256 | cd603067047c028fe12d4b099d13b3681dd698d25bc32474184e9d8edd3ed701 |
| SHA512 | 050105a5f14939a37f653421b24959cc90cb082b20df5bb1a81335fd0ad5e70c740b43f1d6df0fc7324551425894668acc3af0c533c7d90ff149d84e844c2d10 |
memory/1588-73-0x0000000000000000-mapping.dmp
\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | 9af6bd730a1622e152701d2658ddd665 |
| SHA1 | f6390bb376182f18b40311273d7c0a7b4ccdfb68 |
| SHA256 | e46071299afbabb1cad1d8b2cda05cd83f320e905e787495f577bcb0bf61c88b |
| SHA512 | 575b75a34aa7ab015db7f75dc99e3cc60412cde7e8e365f7e6dd759351229faa560733382c7e838be39b94cd84dbc94818005af62b86724e58ed3f7e4ba79cec |
\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | 9af6bd730a1622e152701d2658ddd665 |
| SHA1 | f6390bb376182f18b40311273d7c0a7b4ccdfb68 |
| SHA256 | e46071299afbabb1cad1d8b2cda05cd83f320e905e787495f577bcb0bf61c88b |
| SHA512 | 575b75a34aa7ab015db7f75dc99e3cc60412cde7e8e365f7e6dd759351229faa560733382c7e838be39b94cd84dbc94818005af62b86724e58ed3f7e4ba79cec |
\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | 9af6bd730a1622e152701d2658ddd665 |
| SHA1 | f6390bb376182f18b40311273d7c0a7b4ccdfb68 |
| SHA256 | e46071299afbabb1cad1d8b2cda05cd83f320e905e787495f577bcb0bf61c88b |
| SHA512 | 575b75a34aa7ab015db7f75dc99e3cc60412cde7e8e365f7e6dd759351229faa560733382c7e838be39b94cd84dbc94818005af62b86724e58ed3f7e4ba79cec |
\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | 9af6bd730a1622e152701d2658ddd665 |
| SHA1 | f6390bb376182f18b40311273d7c0a7b4ccdfb68 |
| SHA256 | e46071299afbabb1cad1d8b2cda05cd83f320e905e787495f577bcb0bf61c88b |
| SHA512 | 575b75a34aa7ab015db7f75dc99e3cc60412cde7e8e365f7e6dd759351229faa560733382c7e838be39b94cd84dbc94818005af62b86724e58ed3f7e4ba79cec |
\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | 9af6bd730a1622e152701d2658ddd665 |
| SHA1 | f6390bb376182f18b40311273d7c0a7b4ccdfb68 |
| SHA256 | e46071299afbabb1cad1d8b2cda05cd83f320e905e787495f577bcb0bf61c88b |
| SHA512 | 575b75a34aa7ab015db7f75dc99e3cc60412cde7e8e365f7e6dd759351229faa560733382c7e838be39b94cd84dbc94818005af62b86724e58ed3f7e4ba79cec |
memory/1664-79-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | 9af6bd730a1622e152701d2658ddd665 |
| SHA1 | f6390bb376182f18b40311273d7c0a7b4ccdfb68 |
| SHA256 | e46071299afbabb1cad1d8b2cda05cd83f320e905e787495f577bcb0bf61c88b |
| SHA512 | 575b75a34aa7ab015db7f75dc99e3cc60412cde7e8e365f7e6dd759351229faa560733382c7e838be39b94cd84dbc94818005af62b86724e58ed3f7e4ba79cec |
memory/1664-83-0x0000000002D70000-0x0000000002E48000-memory.dmp
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | 9af6bd730a1622e152701d2658ddd665 |
| SHA1 | f6390bb376182f18b40311273d7c0a7b4ccdfb68 |
| SHA256 | e46071299afbabb1cad1d8b2cda05cd83f320e905e787495f577bcb0bf61c88b |
| SHA512 | 575b75a34aa7ab015db7f75dc99e3cc60412cde7e8e365f7e6dd759351229faa560733382c7e838be39b94cd84dbc94818005af62b86724e58ed3f7e4ba79cec |
memory/1164-94-0x0000000000400000-0x00000000004B2000-memory.dmp
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | 9af6bd730a1622e152701d2658ddd665 |
| SHA1 | f6390bb376182f18b40311273d7c0a7b4ccdfb68 |
| SHA256 | e46071299afbabb1cad1d8b2cda05cd83f320e905e787495f577bcb0bf61c88b |
| SHA512 | 575b75a34aa7ab015db7f75dc99e3cc60412cde7e8e365f7e6dd759351229faa560733382c7e838be39b94cd84dbc94818005af62b86724e58ed3f7e4ba79cec |
memory/1164-95-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1768-91-0x00000000004085D0-mapping.dmp
memory/1164-100-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1164-102-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1164-104-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1164-106-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1164-107-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1164-109-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1164-112-0x000000000048F888-mapping.dmp
C:\Users\Admin\AppData\Roaming\MicrosoftOffice\micoffice.exe
| MD5 | 9af6bd730a1622e152701d2658ddd665 |
| SHA1 | f6390bb376182f18b40311273d7c0a7b4ccdfb68 |
| SHA256 | e46071299afbabb1cad1d8b2cda05cd83f320e905e787495f577bcb0bf61c88b |
| SHA512 | 575b75a34aa7ab015db7f75dc99e3cc60412cde7e8e365f7e6dd759351229faa560733382c7e838be39b94cd84dbc94818005af62b86724e58ed3f7e4ba79cec |
memory/1164-115-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1164-111-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1172-116-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1164-118-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1164-119-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1768-121-0x0000000000400000-0x000000000040B000-memory.dmp
memory/1164-122-0x0000000000400000-0x00000000004B2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-19 13:08
Reported
2022-10-19 13:39
Platform
win10v2004-20220812-en
Max time kernel
109s
Max time network
132s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe
"C:\Users\Admin\AppData\Local\Temp\38fe0f23f3ceeca17a13a952f9b6b72b6e3dd64c42e67786732258f0cd35074f.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4580 -ip 4580
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4580 -s 464
Network
| Country | Destination | Domain | Proto |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| NL | 104.80.225.205:443 | tcp | |
| FR | 40.79.150.121:443 | tcp | |
| US | 8.8.8.8:53 | 97.97.242.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 151.122.125.40.in-addr.arpa | udp |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp | |
| US | 209.197.3.8:80 | tcp |