Analysis Overview
SHA256
088023dee5807788786ad2707fa34ae3422654ecb0cb9efbc1eb268cec958ff0
Threat Level: Known bad
The file bcf82013e39cef4310eb312625ab8598 was found to be: Known bad.
Malicious Activity Summary
Quasar family
Quasar payload
Quasar RAT
RevengeRAT
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Adds Run key to start application
Looks up external IP address via web service
Enumerates physical storage devices
Unsigned PE
Program crash
Runs ping.exe
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Creates scheduled task(s)
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-09 22:29
Signatures
Quasar family
Quasar payload
| 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 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-09 22:29
Reported
2024-03-09 22:35
Platform
win10v2004-20240226-en
Max time kernel
164s
Max time network
171s
Command Line
Signatures
Quasar RAT
Quasar 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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Firefox Update = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\bcf82013e39cef4310eb312625ab8598.exe\"" | C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe
"C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Firefox Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe
"C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Firefox Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe" /rl HIGHEST /f
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\yrLIMI8veaKB.bat" "
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| GB | 142.250.187.234:443 | tcp | |
| US | 8.8.8.8:53 | 45.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 13.107.246.64:443 | tcp | |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 61.179.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 8.8.8.8:53 | 88.16.208.104.in-addr.arpa | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | services18.dns.army | udp |
| US | 8.8.8.8:53 | udp | |
| US | 8.8.8.8:53 | udp | |
| N/A | 13.107.42.16:443 | tcp |
Files
memory/3132-0-0x0000000074F80000-0x0000000075730000-memory.dmp
memory/3132-1-0x0000000000D80000-0x0000000000DAE000-memory.dmp
memory/3132-2-0x0000000005720000-0x000000000576C000-memory.dmp
memory/3132-3-0x00000000082A0000-0x0000000008844000-memory.dmp
memory/3132-4-0x0000000007D90000-0x0000000007E22000-memory.dmp
memory/3132-5-0x0000000074F80000-0x0000000075730000-memory.dmp
memory/3132-6-0x0000000005960000-0x0000000005970000-memory.dmp
memory/3132-7-0x0000000007CF0000-0x0000000007D56000-memory.dmp
memory/3132-8-0x0000000005960000-0x0000000005970000-memory.dmp
memory/3132-9-0x0000000008270000-0x0000000008282000-memory.dmp
memory/3132-10-0x0000000008F70000-0x0000000008FAC000-memory.dmp
C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe
| MD5 | bcf82013e39cef4310eb312625ab8598 |
| SHA1 | 96f423ba66892855a6d67e96a23bdba885f63944 |
| SHA256 | 088023dee5807788786ad2707fa34ae3422654ecb0cb9efbc1eb268cec958ff0 |
| SHA512 | 1cddb94d23d6387dcb0650a74ae2028e6a9744788ce7fe5f4bb98afa41c9670e7097fe1be9b323b2c061742a2c026ea710ff294a3b169085fecdb417beb95ac3 |
memory/3148-15-0x0000000074F80000-0x0000000075730000-memory.dmp
memory/3148-16-0x0000000005450000-0x0000000005460000-memory.dmp
memory/3132-18-0x0000000074F80000-0x0000000075730000-memory.dmp
memory/3148-20-0x0000000008F60000-0x0000000008F6A000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\yrLIMI8veaKB.bat
| MD5 | 2cf01e9d86ebd0e30b6e8a26f169422e |
| SHA1 | c6ab9f2d51252057c590ec0a28da175a95ec45cc |
| SHA256 | c4a23b3de8331112447c45fe4007d4d5e9895b7563efbe3aefe7be78bfbf839c |
| SHA512 | d37b196e011383309d7cf9051a61101b1fafe5fb1710095a70024446e0f413f0f284dbaf0ce5f214ad6afb933c01eb1666aa0b46aa5ace9fb7d567e24a1edefa |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-09 22:29
Reported
2024-03-09 22:34
Platform
win7-20240221-en
Max time kernel
120s
Max time network
122s
Command Line
Signatures
Quasar RAT
Quasar 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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
RevengeRAT
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe |
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe
"C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Firefox Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\bcf82013e39cef4310eb312625ab8598.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe
"C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe"
C:\Windows\SysWOW64\schtasks.exe
"schtasks" /create /tn "Firefox Update" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe" /rl HIGHEST /f
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\0EPIBWDmBjQw.bat" "
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 1492
C:\Windows\SysWOW64\chcp.com
chcp 65001
C:\Windows\SysWOW64\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe
"C:\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | services18.dns.army | udp |
Files
memory/1812-0-0x0000000000160000-0x000000000018E000-memory.dmp
memory/1812-1-0x0000000074470000-0x0000000074B5E000-memory.dmp
memory/1812-2-0x0000000001D60000-0x0000000001DAC000-memory.dmp
memory/1812-3-0x0000000004950000-0x0000000004990000-memory.dmp
\Users\Admin\AppData\Roaming\Instalation\Instalation Rep.exe
| MD5 | bcf82013e39cef4310eb312625ab8598 |
| SHA1 | 96f423ba66892855a6d67e96a23bdba885f63944 |
| SHA256 | 088023dee5807788786ad2707fa34ae3422654ecb0cb9efbc1eb268cec958ff0 |
| SHA512 | 1cddb94d23d6387dcb0650a74ae2028e6a9744788ce7fe5f4bb98afa41c9670e7097fe1be9b323b2c061742a2c026ea710ff294a3b169085fecdb417beb95ac3 |
memory/2640-10-0x0000000074470000-0x0000000074B5E000-memory.dmp
memory/2640-12-0x0000000000C00000-0x0000000000C2E000-memory.dmp
memory/1812-11-0x0000000074470000-0x0000000074B5E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\0EPIBWDmBjQw.bat
| MD5 | 3be8d4a1fd7a726dfa34a9566cad25db |
| SHA1 | 2f3bbc1db68b662572bd4f0130225bd60f79363a |
| SHA256 | 04d97a0f0230637e659531ec71875766b92445fd491ac4bc621b0b782a4f9b8b |
| SHA512 | 4d423109524fa9894205444cf465caa3ff47a53655ecdbc4d46e3625286e667b400798e6ac9e28a4ee0b07f8dc75df137b1898673730de0cde7d71fc1c5669c3 |
memory/2976-30-0x0000000074470000-0x0000000074B5E000-memory.dmp
memory/2976-31-0x0000000074470000-0x0000000074B5E000-memory.dmp
memory/2640-32-0x0000000074470000-0x0000000074B5E000-memory.dmp
memory/2640-33-0x0000000004940000-0x0000000004980000-memory.dmp