Analysis Overview
SHA256
2e37d7372a97df9e3955837eeae856489541aab815dffabc00bbc72af6483e9b
Threat Level: Known bad
The file 9f40a90db5c7da1cc2ced7e23df53ec3.com.exe was found to be: Known bad.
Malicious Activity Summary
Vjw0rm
Executes dropped EXE
Blocklisted process makes network request
Checks computer location settings
Drops startup file
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-12 13:22
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-12 13:22
Reported
2022-10-12 13:24
Platform
win7-20220901-en
Max time kernel
150s
Max time network
148s
Command Line
Signatures
Vjw0rm
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WScript.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rfil.js | C:\Windows\SysWOW64\WScript.exe | N/A |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rfil.js | C:\Windows\SysWOW64\WScript.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WScript.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run | C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsUpdate = "0\\4_87\\kkuai.exe 0\\4_87\\fwfinco.apb" | C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1372 set thread context of 1468 | N/A | C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\9f40a90db5c7da1cc2ced7e23df53ec3.com.exe
"C:\Users\Admin\AppData\Local\Temp\9f40a90db5c7da1cc2ced7e23df53ec3.com.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\temp\4_87\rfil.js" Paul E. Patton (born May 26, 1937) is an American politician who served as the 59th governor of Kentucky from 1995 to 2003.
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\temp\4_87\xrqxkro.vbe"
C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe
"C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe" fwfinco.apb
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
Network
| Country | Destination | Domain | Proto |
| CN | 129.204.138.203:7974 | 129.204.138.203 | tcp |
Files
memory/1600-54-0x00000000752B1000-0x00000000752B3000-memory.dmp
memory/1332-55-0x0000000000000000-mapping.dmp
memory/1792-56-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\temp\4_87\xrqxkro.vbe
| MD5 | 71e60ffa129c1759de7d21cda151dc4e |
| SHA1 | 7a727197a54b055d06180b398ce1a196ffd5ffe6 |
| SHA256 | 26a2dee2267cbd8d019524d2045dda3f0cec89e73d56ba3d2cf2fef9187cb55a |
| SHA512 | bf9ca1b82cbff005357fba82b97c4d0494f4b268b1751639f486a936297e5fa49707d545e3471ef61c4153f6cdd796c344d564f6251de87ac8f499b1002ed3e0 |
C:\Users\Admin\AppData\Local\temp\4_87\rfil.js
| MD5 | 6c705c7ee0ce269b3e6eb770b797e808 |
| SHA1 | e8c6540e4dbb6a464e1f0c2c59cab161f44a8705 |
| SHA256 | dbd1b9421d8634cc2af6ae9c4fe72891bd3139527730185d2e28afe0447b4e2e |
| SHA512 | 0999401d3218986eac63b8e449a572cdd5aec382fac11a6aa86b6a4035107b75343f6f005d506322c0a0e853c7566cf49078991d93cadfab1e80fad8ed1d93e2 |
C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe
| MD5 | b153044cf36a027e19eb94b06003f09c |
| SHA1 | 9c5137654c78d249b318d7612a4d3dd2710c3aea |
| SHA256 | cbcdc1eecb091c7e3418706dd0aafaca9018474150f73d2d4b1cc55595dcf550 |
| SHA512 | ef301b7c23b5012909e6b2a48d7bffbfc122e6c18180b66bd7ac16c8e9a27f3eff6b7cbab8a997857e6d101f8275ca87ba30d153fecb62e630aad14d923d7b96 |
\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe
| MD5 | b153044cf36a027e19eb94b06003f09c |
| SHA1 | 9c5137654c78d249b318d7612a4d3dd2710c3aea |
| SHA256 | cbcdc1eecb091c7e3418706dd0aafaca9018474150f73d2d4b1cc55595dcf550 |
| SHA512 | ef301b7c23b5012909e6b2a48d7bffbfc122e6c18180b66bd7ac16c8e9a27f3eff6b7cbab8a997857e6d101f8275ca87ba30d153fecb62e630aad14d923d7b96 |
memory/1372-63-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe
| MD5 | b153044cf36a027e19eb94b06003f09c |
| SHA1 | 9c5137654c78d249b318d7612a4d3dd2710c3aea |
| SHA256 | cbcdc1eecb091c7e3418706dd0aafaca9018474150f73d2d4b1cc55595dcf550 |
| SHA512 | ef301b7c23b5012909e6b2a48d7bffbfc122e6c18180b66bd7ac16c8e9a27f3eff6b7cbab8a997857e6d101f8275ca87ba30d153fecb62e630aad14d923d7b96 |
C:\Users\Admin\AppData\Local\Temp\4_87\fwfinco.apb
| MD5 | 87bbebf030409ffb724c09365e4d094c |
| SHA1 | dcec2d7a6ff6de98f1760454b1c1c67abeac0da3 |
| SHA256 | 29808fb1137203fc1b0a840e60876da3d8c3ddf9b21869310b2caa221e64ba24 |
| SHA512 | 1a5005e44bf12b4e83e77ee5479a413643813ac0aef3ee906693d08c1a4439949931270be996beda5052fc5c2d01a22852224e19b00462cb086b361082a08f6a |
C:\Users\Admin\AppData\Local\Temp\4_87\ieeoonj.ppt
| MD5 | 6eab883507b80a10c54c5c90706826c8 |
| SHA1 | fd9813bfd24992485b5133d5d68025dd3d0cdf46 |
| SHA256 | 907be50f2e3548c8ac9f4945c05ce4e74ea8f246c51378e097e10837d0331b43 |
| SHA512 | 88bfda7bebe18d4c2faeeedf366c781259e1537f74d7f5d0251f9364807fd945faadff2c56dbeffd5dec8b89723cba736a5538eeaeaee8b511bfd3d5b93ee2c1 |
memory/1096-68-0x0000000000000000-mapping.dmp
memory/1360-69-0x0000000000000000-mapping.dmp
memory/1536-70-0x0000000000000000-mapping.dmp
memory/1820-71-0x0000000000000000-mapping.dmp
memory/284-72-0x0000000000000000-mapping.dmp
memory/796-73-0x0000000000000000-mapping.dmp
memory/908-74-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\4_87\epueaee.qsa
| MD5 | 097b77b3288ee474492dc94a6cb43a15 |
| SHA1 | 742d0e529289b837f512055a4e448fb17cad7656 |
| SHA256 | db326b548a3e1a2a05539881a054b6f9c0ba302d945480564df3cf77fe96ebb1 |
| SHA512 | e738ca448b7e83e822803b5bd22ae222584ae46ee67e7ac60189a23af36c42515c1122d5e10b7145db6aee97b110d4882794ee6877a43eb502239d68fa076dab |
memory/1468-76-0x0000000000400000-0x0000000000468000-memory.dmp
memory/1468-77-0x0000000000400000-0x0000000000468000-memory.dmp
memory/1468-79-0x0000000000400000-0x0000000000468000-memory.dmp
memory/1468-82-0x0000000000400000-0x0000000000468000-memory.dmp
memory/1468-83-0x0000000000402EE8-mapping.dmp
memory/1468-85-0x0000000000400000-0x0000000000468000-memory.dmp
memory/1468-88-0x0000000000400000-0x0000000000468000-memory.dmp
memory/1468-89-0x0000000000400000-0x0000000000468000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-12 13:22
Reported
2022-10-12 13:24
Platform
win10v2004-20220812-en
Max time kernel
151s
Max time network
149s
Command Line
Signatures
Vjw0rm
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WScript.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\9f40a90db5c7da1cc2ced7e23df53ec3.com.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Windows\SysWOW64\WScript.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe | N/A |
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rfil.js | C:\Windows\SysWOW64\WScript.exe | N/A |
| File opened for modification | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\rfil.js | C:\Windows\SysWOW64\WScript.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run | C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WindowsUpdate = "0\\4_87\\kkuai.exe 0\\4_87\\fwfinco.apb" | C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4904 set thread context of 4824 | N/A | C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\9f40a90db5c7da1cc2ced7e23df53ec3.com.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Windows\SysWOW64\WScript.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\9f40a90db5c7da1cc2ced7e23df53ec3.com.exe
"C:\Users\Admin\AppData\Local\Temp\9f40a90db5c7da1cc2ced7e23df53ec3.com.exe"
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\temp\4_87\rfil.js" Paul E. Patton (born May 26, 1937) is an American politician who served as the 59th governor of Kentucky from 1995 to 2003.
C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\temp\4_87\xrqxkro.vbe"
C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe
"C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe" fwfinco.apb
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\SysWOW64\mshta.exe
"C:\Windows\SysWOW64\mshta.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
Network
| Country | Destination | Domain | Proto |
| CN | 129.204.138.203:7974 | 129.204.138.203 | tcp |
| NL | 178.79.208.1:80 | tcp |
Files
memory/4436-132-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\temp\4_87\rfil.js
| MD5 | 6c705c7ee0ce269b3e6eb770b797e808 |
| SHA1 | e8c6540e4dbb6a464e1f0c2c59cab161f44a8705 |
| SHA256 | dbd1b9421d8634cc2af6ae9c4fe72891bd3139527730185d2e28afe0447b4e2e |
| SHA512 | 0999401d3218986eac63b8e449a572cdd5aec382fac11a6aa86b6a4035107b75343f6f005d506322c0a0e853c7566cf49078991d93cadfab1e80fad8ed1d93e2 |
memory/2184-134-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\temp\4_87\xrqxkro.vbe
| MD5 | 71e60ffa129c1759de7d21cda151dc4e |
| SHA1 | 7a727197a54b055d06180b398ce1a196ffd5ffe6 |
| SHA256 | 26a2dee2267cbd8d019524d2045dda3f0cec89e73d56ba3d2cf2fef9187cb55a |
| SHA512 | bf9ca1b82cbff005357fba82b97c4d0494f4b268b1751639f486a936297e5fa49707d545e3471ef61c4153f6cdd796c344d564f6251de87ac8f499b1002ed3e0 |
C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe
| MD5 | b153044cf36a027e19eb94b06003f09c |
| SHA1 | 9c5137654c78d249b318d7612a4d3dd2710c3aea |
| SHA256 | cbcdc1eecb091c7e3418706dd0aafaca9018474150f73d2d4b1cc55595dcf550 |
| SHA512 | ef301b7c23b5012909e6b2a48d7bffbfc122e6c18180b66bd7ac16c8e9a27f3eff6b7cbab8a997857e6d101f8275ca87ba30d153fecb62e630aad14d923d7b96 |
memory/4904-137-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\4_87\kkuai.exe
| MD5 | b153044cf36a027e19eb94b06003f09c |
| SHA1 | 9c5137654c78d249b318d7612a4d3dd2710c3aea |
| SHA256 | cbcdc1eecb091c7e3418706dd0aafaca9018474150f73d2d4b1cc55595dcf550 |
| SHA512 | ef301b7c23b5012909e6b2a48d7bffbfc122e6c18180b66bd7ac16c8e9a27f3eff6b7cbab8a997857e6d101f8275ca87ba30d153fecb62e630aad14d923d7b96 |
C:\Users\Admin\AppData\Local\Temp\4_87\fwfinco.apb
| MD5 | 87bbebf030409ffb724c09365e4d094c |
| SHA1 | dcec2d7a6ff6de98f1760454b1c1c67abeac0da3 |
| SHA256 | 29808fb1137203fc1b0a840e60876da3d8c3ddf9b21869310b2caa221e64ba24 |
| SHA512 | 1a5005e44bf12b4e83e77ee5479a413643813ac0aef3ee906693d08c1a4439949931270be996beda5052fc5c2d01a22852224e19b00462cb086b361082a08f6a |
C:\Users\Admin\AppData\Local\Temp\4_87\ieeoonj.ppt
| MD5 | 6eab883507b80a10c54c5c90706826c8 |
| SHA1 | fd9813bfd24992485b5133d5d68025dd3d0cdf46 |
| SHA256 | 907be50f2e3548c8ac9f4945c05ce4e74ea8f246c51378e097e10837d0331b43 |
| SHA512 | 88bfda7bebe18d4c2faeeedf366c781259e1537f74d7f5d0251f9364807fd945faadff2c56dbeffd5dec8b89723cba736a5538eeaeaee8b511bfd3d5b93ee2c1 |
memory/2256-141-0x0000000000000000-mapping.dmp
memory/1332-142-0x0000000000000000-mapping.dmp
memory/4776-143-0x0000000000000000-mapping.dmp
memory/2300-144-0x0000000000000000-mapping.dmp
memory/3916-145-0x0000000000000000-mapping.dmp
memory/2000-146-0x0000000000000000-mapping.dmp
memory/380-147-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Temp\4_87\epueaee.qsa
| MD5 | 097b77b3288ee474492dc94a6cb43a15 |
| SHA1 | 742d0e529289b837f512055a4e448fb17cad7656 |
| SHA256 | db326b548a3e1a2a05539881a054b6f9c0ba302d945480564df3cf77fe96ebb1 |
| SHA512 | e738ca448b7e83e822803b5bd22ae222584ae46ee67e7ac60189a23af36c42515c1122d5e10b7145db6aee97b110d4882794ee6877a43eb502239d68fa076dab |
memory/4824-150-0x0000000000400000-0x0000000000468000-memory.dmp
memory/4824-149-0x0000000000000000-mapping.dmp
memory/4824-152-0x0000000000400000-0x0000000000468000-memory.dmp
memory/4824-155-0x0000000000400000-0x0000000000468000-memory.dmp
memory/4824-156-0x0000000000400000-0x0000000000468000-memory.dmp