Analysis Overview
SHA256
2e1e00ecb82b5055185935ada275a1022daa7849f052ccd62d5d708a94524357
Threat Level: Shows suspicious behavior
The file b246e55df34671bdda4bdb3451634aa2 was found to be: Shows suspicious behavior.
Malicious Activity Summary
UPX packed file
Reads user/profile data of web browsers
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Drops file in Windows directory
Unsigned PE
Modifies system certificate store
Suspicious use of SetWindowsHookEx
Modifies Internet Explorer settings
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-04 13:45
Signatures
UPX packed file
| 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 |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-04 13:45
Reported
2024-03-04 13:47
Platform
win7-20240220-en
Max time kernel
140s
Max time network
121s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\DS2AYELno1notcd.exe | N/A |
| N/A | N/A | C:\Windows\CTS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\jds259398540.tmp\DS2AYELno1notcd.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b246e55df34671bdda4bdb3451634aa2.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\DS2AYELno1notcd.exe | N/A |
Reads user/profile data of web browsers
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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" | C:\Users\Admin\AppData\Local\Temp\b246e55df34671bdda4bdb3451634aa2.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" | C:\Windows\CTS.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\CTS.exe | C:\Users\Admin\AppData\Local\Temp\b246e55df34671bdda4bdb3451634aa2.exe | N/A |
| File created | C:\Windows\CTS.exe | C:\Windows\CTS.exe | N/A |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Internet Explorer\Main | C:\Users\Admin\AppData\Local\Temp\jds259398540.tmp\DS2AYELno1notcd.exe | N/A |
Modifies system certificate store
| Description | Indicator | Process | Target |
| Set value (data) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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 | C:\Users\Admin\AppData\Local\Temp\jds259398540.tmp\DS2AYELno1notcd.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436 | C:\Users\Admin\AppData\Local\Temp\jds259398540.tmp\DS2AYELno1notcd.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\b246e55df34671bdda4bdb3451634aa2.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\CTS.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\jds259398540.tmp\DS2AYELno1notcd.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\jds259398540.tmp\DS2AYELno1notcd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b246e55df34671bdda4bdb3451634aa2.exe
"C:\Users\Admin\AppData\Local\Temp\b246e55df34671bdda4bdb3451634aa2.exe"
C:\Users\Admin\AppData\Local\Temp\DS2AYELno1notcd.exe
C:\Users\Admin\AppData\Local\Temp\DS2AYELno1notcd.exe
C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
C:\Users\Admin\AppData\Local\Temp\jds259398540.tmp\DS2AYELno1notcd.exe
"C:\Users\Admin\AppData\Local\Temp\jds259398540.tmp\DS2AYELno1notcd.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | javadl-esd-secure.oracle.com | udp |
| GB | 23.214.154.220:443 | javadl-esd-secure.oracle.com | tcp |
| US | 8.8.8.8:53 | javadl.oracle.com | udp |
| GB | 23.204.232.117:80 | javadl.oracle.com | tcp |
| GB | 23.204.232.117:443 | javadl.oracle.com | tcp |
| US | 8.8.8.8:53 | sdlc-esd.oracle.com | udp |
| GB | 23.44.232.84:443 | sdlc-esd.oracle.com | tcp |
Files
memory/2088-0-0x0000000000C10000-0x0000000000C27000-memory.dmp
\Users\Admin\AppData\Local\Temp\DS2AYELno1notcd.exe
| MD5 | 544e07d620d3108b9b6aa3384d02dea5 |
| SHA1 | 9897596f3c4ec39e38ef7f1081783db7693ae0b2 |
| SHA256 | a8fb1a1473831ac6feb092afd2cbdded2d6a881d3576158fabd89090050b52f8 |
| SHA512 | 3663b9c056447c4491635b5bdcbc6e1a2b67a432b41bab6f479da5c787c48f1067cecafdfb6d9763f9b17b553aa953ae87068ba7f0c1c93facf34db7ac53a64c |
memory/2088-18-0x00000000000E0000-0x00000000000F7000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\jds259398540.tmp\DS2AYELno1notcd.exe
| MD5 | 109cbe148f827137c3ba62261f01b29b |
| SHA1 | 2cc02b09da46d9e5d0ac1b306a0bbcc12bfe4c12 |
| SHA256 | 394ad6212e4866cc8e6d1834df8f70538dddf09d23dfa65ea204b22c012b541a |
| SHA512 | a2dfa03dd290540bcfeda6cfd7d6ed891700742b4323d8c8dbfc4c822386ef1ddfff5cf71b2e5d7be9ec72fb6fc2145ff6ffc440823187d6956d5aa2794c5799 |
memory/2088-17-0x0000000000C10000-0x0000000000C27000-memory.dmp
memory/2852-26-0x0000000000260000-0x0000000000277000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\jusched.log
| MD5 | 253e8250a163eaf7cb4fb913a010a129 |
| SHA1 | 189fd76784d9b896c6d52e2b469ec6bf019c038e |
| SHA256 | 89b8077d52131ccf7110a39e0bcaa4694016aa35c90dddb7403f3c41f4b5372d |
| SHA512 | 8025974a98e7e7c6df047efffe262926ced59f0af787d9712da7aa17d8ed4e3a2e9bf3d690d3f060798eb0190496bf73102f2d1bd0d603a859d89f484befe946 |
memory/2088-24-0x00000000000E0000-0x00000000000F7000-memory.dmp
C:\Windows\CTS.exe
| MD5 | 641f2acbcf02682f7b0e9f18a36d0998 |
| SHA1 | 3d71e3c26c9073444064ce352b968191881185cb |
| SHA256 | 2b697324dd222529c9342faf00133a2accd7a3552325db1e2b70f2ddc0f98bab |
| SHA512 | 6283c06cc4190fcb708583c49df4e8fca15aa11f50a8d53827d8ac3466393a7f9d4a246b6300eb575e514ead682b0849f014e522ab706349d760fa595d78d999 |
C:\Users\Admin\AppData\Local\Temp\jusched.log
| MD5 | 451b4de0d522059e7465dffc7f832a61 |
| SHA1 | ed21769aea3bd74b1cbfdae9aaab1ac78b48ef58 |
| SHA256 | b4d678f38dba6566a30b753097a9a1a132e4566be216b1f5a180614e8d3e29a7 |
| SHA512 | 85e9c03304ef9b1d591d588aadd77c266c187867a7a8b933b0fa0607d2c92b5e35f31aaf9172c5dc4e0b62a6e6386bae1fa4ee7a7f8a225a89ed92f0f895323d |
memory/2088-182-0x00000000000E0000-0x00000000000F7000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-04 13:45
Reported
2024-03-04 13:47
Platform
win10v2004-20240226-en
Max time kernel
141s
Max time network
126s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\gUgVflnTjTxGQhu.exe | N/A |
| N/A | N/A | C:\Windows\CTS.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\jds240600109.tmp\gUgVflnTjTxGQhu.exe | N/A |
Reads user/profile data of web browsers
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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" | C:\Users\Admin\AppData\Local\Temp\b246e55df34671bdda4bdb3451634aa2.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" | C:\Windows\CTS.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\CTS.exe | C:\Users\Admin\AppData\Local\Temp\b246e55df34671bdda4bdb3451634aa2.exe | N/A |
| File created | C:\Windows\CTS.exe | C:\Windows\CTS.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\b246e55df34671bdda4bdb3451634aa2.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\CTS.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\jds240600109.tmp\gUgVflnTjTxGQhu.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\jds240600109.tmp\gUgVflnTjTxGQhu.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b246e55df34671bdda4bdb3451634aa2.exe
"C:\Users\Admin\AppData\Local\Temp\b246e55df34671bdda4bdb3451634aa2.exe"
C:\Users\Admin\AppData\Local\Temp\gUgVflnTjTxGQhu.exe
C:\Users\Admin\AppData\Local\Temp\gUgVflnTjTxGQhu.exe
C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
C:\Users\Admin\AppData\Local\Temp\jds240600109.tmp\gUgVflnTjTxGQhu.exe
"C:\Users\Admin\AppData\Local\Temp\jds240600109.tmp\gUgVflnTjTxGQhu.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 85.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | javadl-esd-secure.oracle.com | udp |
| GB | 23.214.154.220:443 | javadl-esd-secure.oracle.com | tcp |
| US | 8.8.8.8:53 | 204.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 220.154.214.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | javadl.oracle.com | udp |
| GB | 23.204.232.117:80 | javadl.oracle.com | tcp |
| US | 20.231.121.79:80 | tcp | |
| GB | 23.204.232.117:443 | javadl.oracle.com | tcp |
| 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 | sdlc-esd.oracle.com | udp |
| GB | 23.44.232.84:443 | sdlc-esd.oracle.com | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 117.232.204.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 84.232.44.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 187.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 188.178.17.96.in-addr.arpa | udp |
Files
memory/3184-0-0x00000000007F0000-0x0000000000807000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\gUgVflnTjTxGQhu.exe
| MD5 | 544e07d620d3108b9b6aa3384d02dea5 |
| SHA1 | 9897596f3c4ec39e38ef7f1081783db7693ae0b2 |
| SHA256 | a8fb1a1473831ac6feb092afd2cbdded2d6a881d3576158fabd89090050b52f8 |
| SHA512 | 3663b9c056447c4491635b5bdcbc6e1a2b67a432b41bab6f479da5c787c48f1067cecafdfb6d9763f9b17b553aa953ae87068ba7f0c1c93facf34db7ac53a64c |
memory/3184-16-0x00000000007F0000-0x0000000000807000-memory.dmp
C:\Windows\CTS.exe
| MD5 | 641f2acbcf02682f7b0e9f18a36d0998 |
| SHA1 | 3d71e3c26c9073444064ce352b968191881185cb |
| SHA256 | 2b697324dd222529c9342faf00133a2accd7a3552325db1e2b70f2ddc0f98bab |
| SHA512 | 6283c06cc4190fcb708583c49df4e8fca15aa11f50a8d53827d8ac3466393a7f9d4a246b6300eb575e514ead682b0849f014e522ab706349d760fa595d78d999 |
memory/4648-8-0x00000000006F0000-0x0000000000707000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\jds240600109.tmp\gUgVflnTjTxGQhu.exe
| MD5 | 109cbe148f827137c3ba62261f01b29b |
| SHA1 | 2cc02b09da46d9e5d0ac1b306a0bbcc12bfe4c12 |
| SHA256 | 394ad6212e4866cc8e6d1834df8f70538dddf09d23dfa65ea204b22c012b541a |
| SHA512 | a2dfa03dd290540bcfeda6cfd7d6ed891700742b4323d8c8dbfc4c822386ef1ddfff5cf71b2e5d7be9ec72fb6fc2145ff6ffc440823187d6956d5aa2794c5799 |
C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
| MD5 | 26a09cdb073cf17d7dd6668947712e94 |
| SHA1 | f70f1119be8c2de70fcbb97ef6ef8c1de427462d |
| SHA256 | 8c8df550fd6cfaf98c99ca7da69ccd47501ffefb54d4d1fd65919dc7b4f68437 |
| SHA512 | 46b27da299e78c2123dbd9a6c1a540e155d0036c722028456662fb9419802a26a9bc640a28cde304f5ccaae1eabb939b83b040bc168b84fc83482f0d5d7ffebc |
C:\Users\Admin\AppData\Local\Temp\jusched.log
| MD5 | aef24836762628af7617e91435188e6e |
| SHA1 | c8f990df9486c479287700dd93842e0a290b5344 |
| SHA256 | fcb3cf2f4a3d046c500293057ddf1b9c2fa40d94b8d01fedd8d72d6f73597131 |
| SHA512 | 9da02999dd26849d9480607a8ec557c4107ccfbbcd33ec772e4b1171a3e67aa3f3d7968694eabd2b0d0f9702df5a67ebaa5960c8bae6ca470aa95efb278cccc7 |
C:\Users\Admin\AppData\Local\Temp\jusched.log
| MD5 | 4897edf4404f7f82829e0911d132c15d |
| SHA1 | 326ce4567e28ffcf9b4c22dcb7afe16ee3f4868f |
| SHA256 | 3583c8d757273c88169678a2a8a78b3bcd21a4d0874d97e0056b99d7733f2acd |
| SHA512 | 640d0bd78ae888c0e0e828b8f23052538bbbcc647934cbde41529719deda63fcc5448776466d18b35cac26ef84ab5abdf73ee40d485c1bc6cb30ae40636b39de |
memory/4648-131-0x00000000006F0000-0x0000000000707000-memory.dmp