Analysis Overview
SHA256
25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66
Threat Level: Shows suspicious behavior
The file 25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Adds Run key to start application
Drops file in Windows directory
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-03 19:29
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-03 19:29
Reported
2024-04-03 19:32
Platform
win7-20240221-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\zEHsvgHi8NzTGu6.exe | N/A |
| N/A | N/A | C:\Windows\CTS.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe | N/A |
| N/A | N/A | N/A | N/A |
Reads user/profile data of web browsers
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\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.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\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.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\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\CTS.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe
"C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe"
C:\Users\Admin\AppData\Local\Temp\zEHsvgHi8NzTGu6.exe
C:\Users\Admin\AppData\Local\Temp\zEHsvgHi8NzTGu6.exe
C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
Network
Files
\Users\Admin\AppData\Local\Temp\zEHsvgHi8NzTGu6.exe
| MD5 | abbd49c180a2f8703f6306d6fa731fdc |
| SHA1 | d63f4bfe7f74936b2fbace803e3da6103fbf6586 |
| SHA256 | 5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1 |
| SHA512 | 290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9 |
C:\Windows\CTS.exe
| MD5 | 66df4ffab62e674af2e75b163563fc0b |
| SHA1 | dec8a197312e41eeb3cfef01cb2a443f0205cd6e |
| SHA256 | 075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163 |
| SHA512 | 1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25 |
memory/2980-15-0x0000000000400000-0x000000000040D000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\zEHsvgHi8NzTGu6.exe
| MD5 | c7572251e167a0f9798fb7671be00b82 |
| SHA1 | b2dee87ff7c95887def2d6d798bffb6ca8d0114b |
| SHA256 | ec774ee624f0f708be405e419bfbbfe57311a6a67a837014e10d91b306ed3404 |
| SHA512 | 35b9f1f263821e6fe0ed50531384dc26e24b5bff66436b29f752c4b0049414ddaa3dccf8d9f84a1dfe8324c9d4d4bd73d661eb146774d03e7d926b98c340b4f2 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-03 19:29
Reported
2024-04-03 19:32
Platform
win10v2004-20240226-en
Max time kernel
147s
Max time network
154s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\q8hnreN8HYDi1Ym.exe | N/A |
| N/A | N/A | C:\Windows\CTS.exe | N/A |
Reads user/profile data of web browsers
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\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.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:\Windows\CTS.exe | N/A |
| File created | C:\Windows\CTS.exe | C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\CTS.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2332 wrote to memory of 3812 | N/A | C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe | C:\Users\Admin\AppData\Local\Temp\q8hnreN8HYDi1Ym.exe |
| PID 2332 wrote to memory of 3812 | N/A | C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe | C:\Users\Admin\AppData\Local\Temp\q8hnreN8HYDi1Ym.exe |
| PID 2332 wrote to memory of 4468 | N/A | C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe | C:\Windows\CTS.exe |
| PID 2332 wrote to memory of 4468 | N/A | C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe | C:\Windows\CTS.exe |
| PID 2332 wrote to memory of 4468 | N/A | C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe | C:\Windows\CTS.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe
"C:\Users\Admin\AppData\Local\Temp\25389f99c8da6503e094dac9215eb5f71d868e3df51b41aa37149c57ef973d66.exe"
C:\Users\Admin\AppData\Local\Temp\q8hnreN8HYDi1Ym.exe
C:\Users\Admin\AppData\Local\Temp\q8hnreN8HYDi1Ym.exe
C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 35.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 210.108.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 100.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 6.173.189.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\q8hnreN8HYDi1Ym.exe
| MD5 | abbd49c180a2f8703f6306d6fa731fdc |
| SHA1 | d63f4bfe7f74936b2fbace803e3da6103fbf6586 |
| SHA256 | 5f411c0bd9ed9a42b0f07ed568c7d0cf358a83063b225a1f8f7da3296dde90f1 |
| SHA512 | 290dd984acc451b778f3db8c510bae7aec1d9547c3ad0a1829df731c136e4ecc9a37dc6a786cf8f1ecc4d14339aed1288af25055f450f6f953138c8d4d5c36e9 |
C:\Windows\CTS.exe
| MD5 | 66df4ffab62e674af2e75b163563fc0b |
| SHA1 | dec8a197312e41eeb3cfef01cb2a443f0205cd6e |
| SHA256 | 075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163 |
| SHA512 | 1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25 |
memory/3812-8-0x0000000000400000-0x000000000040D000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
| MD5 | 4e9af261ec59b19993c7632ac239c866 |
| SHA1 | 1f67f97062aa8fe8fbd4733ca8bfe016b6987020 |
| SHA256 | 083195240ea335e8825cc6429431c3635a41fd97a96dbf7d8b23fd1921c327b1 |
| SHA512 | 4baf0ce5f7e4991331c69af061818aabb2224c45fc7111c40db44e12c44f316ffb882832f220b53f140314a984adcf831e267505cf4b7f6deb3718126d437d5c |