Analysis Overview
SHA256
992ddc778bc3af49b9b7c424071cfe0db67dbcee83994debfee421ef4190d473
Threat Level: Known bad
The file d3e88703aaa4fe2bfdb0f663744724cc 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 behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-03-18 15:54
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-18 15:54
Reported
2024-03-18 15:57
Platform
win7-20240221-en
Max time kernel
118s
Max time network
128s
Command Line
Signatures
Oski
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2296 set thread context of 2080 | N/A | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe
"C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe"
C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe
"C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2080 -s 772
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | chikkark.xyz | udp |
Files
memory/2080-2-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2296-3-0x00000000001A0000-0x00000000001A2000-memory.dmp
memory/2296-1-0x0000000000260000-0x0000000000360000-memory.dmp
memory/2080-5-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2080-6-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2296-8-0x00000000001A0000-0x00000000001A2000-memory.dmp
memory/2080-9-0x0000000000400000-0x0000000000438000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-18 15:54
Reported
2024-03-18 15:57
Platform
win10v2004-20231215-en
Max time kernel
92s
Max time network
151s
Command Line
Signatures
Oski
Reads user/profile data of web browsers
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1720 set thread context of 3800 | N/A | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe |
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1720 wrote to memory of 3800 | N/A | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe |
| PID 1720 wrote to memory of 3800 | N/A | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe |
| PID 1720 wrote to memory of 3800 | N/A | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe |
| PID 1720 wrote to memory of 3800 | N/A | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe | C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe
"C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe"
C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe
"C:\Users\Admin\AppData\Local\Temp\d3e88703aaa4fe2bfdb0f663744724cc.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 3800 -ip 3800
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3800 -s 1296
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | chikkark.xyz | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 130.211.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.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 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 181.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 177.178.17.96.in-addr.arpa | udp |
Files
memory/1720-1-0x0000000000C40000-0x0000000000D40000-memory.dmp
memory/3800-2-0x0000000000400000-0x0000000000438000-memory.dmp
memory/1720-3-0x0000000000FE0000-0x0000000000FE2000-memory.dmp
memory/3800-5-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3800-4-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3800-6-0x0000000000400000-0x0000000000438000-memory.dmp
memory/3800-9-0x0000000000400000-0x0000000000438000-memory.dmp