Analysis Overview
SHA256
096274fd9d732efd99db63e588c529184b5e7c27215eb09e6bab705ddfdc7d01
Threat Level: Known bad
The file 887e6a417f06bb6dc94f034935073101 was found to be: Known bad.
Malicious Activity Summary
Oski
UPX packed file
Reads user/profile data of web browsers
Drops startup file
Suspicious use of SetThreadContext
Program crash
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-12-19 19:46
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
2023-12-19 19:46
Reported
2023-12-20 00:20
Platform
win7-20231129-en
Max time kernel
141s
Max time network
121s
Command Line
Signatures
Oski
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\x.vbs | C:\Windows\SysWOW64\cmd.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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2348 set thread context of 1088 | N/A | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe
"C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c echo on error resume next:CreateObject("WScript.Shell").Run "C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe",1: >"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\x.vbs"
C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe
C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1088 -s 768
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | agencybro.tech | udp |
Files
memory/2348-0-0x0000000000400000-0x000000000047D000-memory.dmp
memory/1088-2-0x0000000000300000-0x0000000000400000-memory.dmp
memory/2348-4-0x0000000001F30000-0x0000000001FAD000-memory.dmp
memory/1088-3-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-6-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-8-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-10-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-12-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-14-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-16-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-18-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-20-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/1088-24-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-27-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/2348-30-0x0000000000400000-0x000000000047D000-memory.dmp
memory/1088-29-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-31-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-32-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/1088-33-0x0000000000400000-0x0000000000470000-memory.dmp
memory/1088-35-0x0000000000400000-0x0000000000470000-memory.dmp
memory/1088-36-0x0000000000400000-0x00000000019E0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-12-19 19:46
Reported
2023-12-20 00:19
Platform
win10v2004-20231215-en
Max time kernel
112s
Max time network
150s
Command Line
Signatures
Oski
Drops startup file
| Description | Indicator | Process | Target |
| File created | C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\x.vbs | C:\Windows\SysWOW64\cmd.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 |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3252 set thread context of 4492 | N/A | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe
"C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c echo on error resume next:CreateObject("WScript.Shell").Run "C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe",1: >"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\x.vbs"
C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe
C:\Users\Admin\AppData\Local\Temp\887e6a417f06bb6dc94f034935073101.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4492 -ip 4492
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 1308
Network
| Country | Destination | Domain | Proto |
| 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 | 18.53.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 201.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | agencybro.tech | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.121.231.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
memory/3252-0-0x0000000000400000-0x000000000047D000-memory.dmp
memory/4492-2-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/4492-4-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/3252-3-0x0000000000400000-0x000000000047D000-memory.dmp
memory/4492-5-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/4492-6-0x0000000000400000-0x00000000019E0000-memory.dmp
memory/4492-10-0x0000000000400000-0x0000000000470000-memory.dmp
memory/4492-9-0x0000000000400000-0x00000000019E0000-memory.dmp