Analysis Overview
SHA256
a34e7c63da647c394b8becde55d6e87bc34e2c934c89b7f23484747a3598fb4c
Threat Level: Known bad
The file 4d838fd7586e75e908483b1807bc29a6 was found to be: Known bad.
Malicious Activity Summary
Oski
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
Program crash
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-01-09 05:53
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-01-09 05:53
Reported
2024-01-09 05:56
Platform
win7-20231215-en
Max time kernel
122s
Max time network
126s
Command Line
Signatures
Oski
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2168 set thread context of 2100 | N/A | C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe | C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe
"C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe"
C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe
"C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 776
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | cabvui.xyz | udp |
Files
memory/2168-0-0x0000000000F00000-0x0000000000FBC000-memory.dmp
memory/2168-1-0x00000000744D0000-0x0000000074BBE000-memory.dmp
memory/2168-2-0x0000000004E40000-0x0000000004E80000-memory.dmp
memory/2168-3-0x0000000000970000-0x0000000000986000-memory.dmp
memory/2168-4-0x00000000744D0000-0x0000000074BBE000-memory.dmp
memory/2168-5-0x0000000004E40000-0x0000000004E80000-memory.dmp
memory/2168-6-0x0000000005EC0000-0x0000000005F62000-memory.dmp
memory/2168-7-0x0000000000EC0000-0x0000000000EF8000-memory.dmp
memory/2100-8-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2100-10-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2100-12-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2100-14-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2100-16-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2100-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2100-20-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2168-23-0x00000000744D0000-0x0000000074BBE000-memory.dmp
memory/2100-22-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2100-24-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2100-26-0x0000000000400000-0x0000000000438000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-01-09 05:53
Reported
2024-01-09 05:56
Platform
win10v2004-20231215-en
Max time kernel
133s
Max time network
153s
Command Line
Signatures
Oski
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4860 set thread context of 4440 | N/A | C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe | C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe
"C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe"
C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe
"C:\Users\Admin\AppData\Local\Temp\4d838fd7586e75e908483b1807bc29a6.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4440 -ip 4440
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4440 -s 1296
Network
| Country | Destination | Domain | Proto |
| US | 138.91.171.81:80 | tcp | |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.53.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.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 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.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 |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | cabvui.xyz | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
memory/4860-0-0x0000000074E20000-0x00000000755D0000-memory.dmp
memory/4860-2-0x0000000005040000-0x00000000050DC000-memory.dmp
memory/4860-1-0x0000000000590000-0x000000000064C000-memory.dmp
memory/4860-3-0x0000000005690000-0x0000000005C34000-memory.dmp
memory/4860-4-0x0000000005180000-0x0000000005212000-memory.dmp
memory/4860-5-0x0000000004FE0000-0x0000000004FF0000-memory.dmp
memory/4860-7-0x0000000005220000-0x0000000005276000-memory.dmp
memory/4860-6-0x00000000050F0000-0x00000000050FA000-memory.dmp
memory/4860-8-0x00000000064E0000-0x00000000064F6000-memory.dmp
memory/4860-9-0x0000000074E20000-0x00000000755D0000-memory.dmp
memory/4860-10-0x0000000004FE0000-0x0000000004FF0000-memory.dmp
memory/4860-11-0x0000000007F50000-0x0000000007FF2000-memory.dmp
memory/4860-12-0x0000000007D40000-0x0000000007D78000-memory.dmp
memory/4440-13-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4440-15-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4440-16-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4440-17-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4860-18-0x0000000074E20000-0x00000000755D0000-memory.dmp
memory/4440-21-0x0000000000400000-0x0000000000438000-memory.dmp