Analysis Overview
SHA256
aa09fccf2c858daab89e46f82c953f820c4e3e0460998cc1250219c6edd2f332
Threat Level: Likely malicious
The file o4mjy2eusa.exe was found to be: Likely malicious.
Malicious Activity Summary
Possible privilege escalation attempt
Modifies file permissions
Executes dropped EXE
Loads dropped DLL
Suspicious behavior: EnumeratesProcesses
Creates scheduled task(s)
Suspicious behavior: LoadsDriver
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-17 09:31
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-17 09:31
Reported
2024-03-17 09:35
Platform
win7-20240221-en
Max time kernel
120s
Max time network
125s
Command Line
Signatures
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-QIL9J.tmp\o4mjy2eusa.tmp | N/A |
| N/A | N/A | C:\SWTOOLS\FLASH\O4MJY2EUSA\WFLASH2x64.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\o4mjy2eusa.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
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 |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-QIL9J.tmp\o4mjy2eusa.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-QIL9J.tmp\o4mjy2eusa.tmp | N/A |
Suspicious behavior: LoadsDriver
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-QIL9J.tmp\o4mjy2eusa.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\o4mjy2eusa.exe
"C:\Users\Admin\AppData\Local\Temp\o4mjy2eusa.exe"
C:\Users\Admin\AppData\Local\Temp\is-QIL9J.tmp\o4mjy2eusa.tmp
"C:\Users\Admin\AppData\Local\Temp\is-QIL9J.tmp\o4mjy2eusa.tmp" /SL5="$7011E,9489558,121344,C:\Users\Admin\AppData\Local\Temp\o4mjy2eusa.exe"
C:\Windows\SysWOW64\takeown.exe
"C:\Windows\system32\takeown.exe" /f C:\SWTOOLS /a /r /d y
C:\Windows\SysWOW64\icacls.exe
"C:\Windows\system32\icacls.exe" C:\SWTOOLS /reset /T /C /L /Q
C:\Windows\SysWOW64\icacls.exe
"C:\Windows\system32\icacls.exe" C:\SWTOOLS /inheritance:e /grant:r *S-1-5-32-544:(OI)(CI)F *S-1-5-18:(OI)(CI)F *S-1-5-32-545:(OI)(CI)RX /T /C /L /Q
C:\Windows\SysWOW64\icacls.exe
"C:\Windows\system32\icacls.exe" C:\SWTOOLS /inheritance:r /C /L /Q
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /CREATE /XML C:\SWTOOLS\FLASH\O4MJY2EUSA\DeleteFolder.xml /TN "\LenovoCleanupFolder-20241703.093248"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /CHANGE /TN "\LenovoCleanupFolder-20241703.093248" /TR "C:\Windows\system32\cmd.exe /C 'rd /s /q C:\SWTOOLS\FLASH\O4MJY2EUSA\"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /CREATE /XML C:\SWTOOLS\FLASH\O4MJY2EUSA\DeleteTasks.xml /TN "\LenovoCleanupTasks-20241703.093248"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /CHANGE /TN "\LenovoCleanupTasks-20241703.093248" /TR "C:\Windows\system32\cmd.exe /C 'C:\Windows\system32\schtasks.exe /Delete /TN LenovoCleanupFolder-20241703.093248 /F && C:\Windows\system32\schtasks.exe /Delete /TN LenovoCleanupTasks-20241703.093248 /F'"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /C ""C:\SWTOOLS\FLASH\O4MJY2EUSA\flash.cmd""
C:\SWTOOLS\FLASH\O4MJY2EUSA\WFLASH2x64.exe
wflash2x64.exe imageO4M.rom /bb /rsmb /quiet
Network
Files
memory/2752-1-0x0000000000400000-0x0000000000428000-memory.dmp
\Users\Admin\AppData\Local\Temp\is-QIL9J.tmp\o4mjy2eusa.tmp
| MD5 | 90fc739c83cd19766acb562c66a7d0e2 |
| SHA1 | 451f385a53d5fed15e7649e7891e05f231ef549a |
| SHA256 | 821bd11693bf4b4b2b9f3c196036e1f4902abd95fb26873ea6c43e123b8c9431 |
| SHA512 | 4cb11ad48b7585ef1b70fac9e3c25610b2f64a16358cd51e32adcb0b17a6ab1c934aeb10adaa8e9ddf69b2e2f1d18fe2e87b49b39f89b05ea13aa3205e41296c |
memory/2052-8-0x0000000000240000-0x0000000000241000-memory.dmp
C:\SWTOOLS\FLASH\O4MJY2EUSA\is-AFSCC.tmp
| MD5 | 4bfddcdfca040885e2139ff0c7b585ff |
| SHA1 | d1c233e908eeb8cd286c484def6fccd8f604f5d2 |
| SHA256 | af3f6399017269d00fa328cec5647b44e1c3f13d798f141562d1caa53a20d5b3 |
| SHA512 | 9d0d573c91e94ef2c24dff76695941af9d5901ecde449f653ec860fec88f905fb447ff994a16966f1437182c4e976f529f136569f981896601948345e696d349 |
memory/2752-34-0x0000000000400000-0x0000000000428000-memory.dmp
memory/2052-35-0x0000000000400000-0x000000000052D000-memory.dmp
\SWTOOLS\FLASH\O4MJY2EUSA\WFLASH2x64.exe
| MD5 | dd56b7de9219e02980ed7d310f0f9a69 |
| SHA1 | e3b76b502d41c273d0f20fa5f2a2534395633917 |
| SHA256 | c248d9acbac455ff75043aac65f60a1da7bace6d852c421dcb302f10caec0bcc |
| SHA512 | 03ff61e442ee3729fcf7c5bb88faba766232c37d87bc323b6a99042b3c8526b97946fe1a48ab479872b66518a3f19f9767ca053ea973ade48af3dc9d9228d183 |
C:\SWTOOLS\FLASH\O4MJY2EUSA\LeCrud64.sys
| MD5 | 1f2109002a0a8ca2ee7457e933069847 |
| SHA1 | b78ff33cefbc1972202e61d930945c9c094e2d09 |
| SHA256 | b17f258a00c7c4339a4a79817e3ed0ebe8c2cf96829e286117994b6f1f106837 |
| SHA512 | 9b70f5c8311797d100e2f83b7249c1f89bf0e40302e3c72d8fb04fe616e887a4451451758af21a1fa72c900bf1f9fc196c893fce2b89c825edbca33daaf4b2b9 |
memory/2052-67-0x0000000000400000-0x000000000052D000-memory.dmp
memory/2752-69-0x0000000000400000-0x0000000000428000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-17 09:31
Reported
2024-03-17 09:35
Platform
win10v2004-20240226-en
Max time kernel
150s
Max time network
152s
Command Line
Signatures
Possible privilege escalation attempt
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Modifies file permissions
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\takeown.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\icacls.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-0UFS9.tmp\o4mjy2eusa.tmp | N/A |
| N/A | N/A | C:\SWTOOLS\FLASH\O4MJY2EUSA\WFLASH2x64.exe | N/A |
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 |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-0UFS9.tmp\o4mjy2eusa.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-0UFS9.tmp\o4mjy2eusa.tmp | N/A |
Suspicious behavior: LoadsDriver
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\is-0UFS9.tmp\o4mjy2eusa.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\o4mjy2eusa.exe
"C:\Users\Admin\AppData\Local\Temp\o4mjy2eusa.exe"
C:\Users\Admin\AppData\Local\Temp\is-0UFS9.tmp\o4mjy2eusa.tmp
"C:\Users\Admin\AppData\Local\Temp\is-0UFS9.tmp\o4mjy2eusa.tmp" /SL5="$D0058,9489558,121344,C:\Users\Admin\AppData\Local\Temp\o4mjy2eusa.exe"
C:\Windows\SysWOW64\takeown.exe
"C:\Windows\system32\takeown.exe" /f C:\SWTOOLS /a /r /d y
C:\Windows\SysWOW64\icacls.exe
"C:\Windows\system32\icacls.exe" C:\SWTOOLS /reset /T /C /L /Q
C:\Windows\SysWOW64\icacls.exe
"C:\Windows\system32\icacls.exe" C:\SWTOOLS /inheritance:e /grant:r *S-1-5-32-544:(OI)(CI)F *S-1-5-18:(OI)(CI)F *S-1-5-32-545:(OI)(CI)RX /T /C /L /Q
C:\Windows\SysWOW64\icacls.exe
"C:\Windows\system32\icacls.exe" C:\SWTOOLS /inheritance:r /C /L /Q
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /CREATE /XML C:\SWTOOLS\FLASH\O4MJY2EUSA\DeleteFolder.xml /TN "\LenovoCleanupFolder-20241703.093305"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /CHANGE /TN "\LenovoCleanupFolder-20241703.093305" /TR "C:\Windows\system32\cmd.exe /C 'rd /s /q C:\SWTOOLS\FLASH\O4MJY2EUSA\"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /CREATE /XML C:\SWTOOLS\FLASH\O4MJY2EUSA\DeleteTasks.xml /TN "\LenovoCleanupTasks-20241703.093305"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\system32\schtasks.exe" /CHANGE /TN "\LenovoCleanupTasks-20241703.093305" /TR "C:\Windows\system32\cmd.exe /C 'C:\Windows\system32\schtasks.exe /Delete /TN LenovoCleanupFolder-20241703.093305 /F && C:\Windows\system32\schtasks.exe /Delete /TN LenovoCleanupTasks-20241703.093305 /F'"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /C ""C:\SWTOOLS\FLASH\O4MJY2EUSA\flash.cmd""
C:\SWTOOLS\FLASH\O4MJY2EUSA\WFLASH2x64.exe
wflash2x64.exe imageO4M.rom /bb /rsmb /quiet
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=4136 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 64.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.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 | 58.99.105.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 142.250.179.234:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 234.179.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
Files
memory/4976-0-0x0000000000400000-0x0000000000428000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\is-0UFS9.tmp\o4mjy2eusa.tmp
| MD5 | 90fc739c83cd19766acb562c66a7d0e2 |
| SHA1 | 451f385a53d5fed15e7649e7891e05f231ef549a |
| SHA256 | 821bd11693bf4b4b2b9f3c196036e1f4902abd95fb26873ea6c43e123b8c9431 |
| SHA512 | 4cb11ad48b7585ef1b70fac9e3c25610b2f64a16358cd51e32adcb0b17a6ab1c934aeb10adaa8e9ddf69b2e2f1d18fe2e87b49b39f89b05ea13aa3205e41296c |
memory/1792-5-0x0000000000720000-0x0000000000721000-memory.dmp
memory/4976-7-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1792-8-0x0000000000400000-0x000000000052D000-memory.dmp
memory/1792-10-0x0000000000400000-0x000000000052D000-memory.dmp
C:\SWTOOLS\FLASH\O4MJY2EUSA\Flash.cmd
| MD5 | 4bfddcdfca040885e2139ff0c7b585ff |
| SHA1 | d1c233e908eeb8cd286c484def6fccd8f604f5d2 |
| SHA256 | af3f6399017269d00fa328cec5647b44e1c3f13d798f141562d1caa53a20d5b3 |
| SHA512 | 9d0d573c91e94ef2c24dff76695941af9d5901ecde449f653ec860fec88f905fb447ff994a16966f1437182c4e976f529f136569f981896601948345e696d349 |
memory/1792-60-0x0000000000720000-0x0000000000721000-memory.dmp
C:\SWTOOLS\FLASH\O4MJY2EUSA\WFLASH2x64.exe
| MD5 | dd56b7de9219e02980ed7d310f0f9a69 |
| SHA1 | e3b76b502d41c273d0f20fa5f2a2534395633917 |
| SHA256 | c248d9acbac455ff75043aac65f60a1da7bace6d852c421dcb302f10caec0bcc |
| SHA512 | 03ff61e442ee3729fcf7c5bb88faba766232c37d87bc323b6a99042b3c8526b97946fe1a48ab479872b66518a3f19f9767ca053ea973ade48af3dc9d9228d183 |
C:\SWTOOLS\FLASH\O4MJY2EUSA\LeCrud64.sys
| MD5 | 1f2109002a0a8ca2ee7457e933069847 |
| SHA1 | b78ff33cefbc1972202e61d930945c9c094e2d09 |
| SHA256 | b17f258a00c7c4339a4a79817e3ed0ebe8c2cf96829e286117994b6f1f106837 |
| SHA512 | 9b70f5c8311797d100e2f83b7249c1f89bf0e40302e3c72d8fb04fe616e887a4451451758af21a1fa72c900bf1f9fc196c893fce2b89c825edbca33daaf4b2b9 |
memory/1792-67-0x0000000000400000-0x000000000052D000-memory.dmp
memory/4976-69-0x0000000000400000-0x0000000000428000-memory.dmp