Analysis Overview
SHA256
b7f851c1e033dabb837f079c6f81e7a460721c7076c355110840d69d3882cdc0
Threat Level: Known bad
The file b7f851c1e033dabb837f079c6f81e7a460721c7076c355110840d69d3882cdc0 was found to be: Known bad.
Malicious Activity Summary
Detect Vidar Stealer
Stealc
Vidar
Downloads MZ/PE file
Reads user/profile data of web browsers
Executes dropped EXE
Reads data files stored by FTP clients
Checks computer location settings
Checks installed software on the system
Suspicious use of SetThreadContext
Unsigned PE
Enumerates physical storage devices
Checks processor information in registry
Delays execution with timeout.exe
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-28 20:40
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-28 20:40
Reported
2024-06-28 20:43
Platform
win10v2004-20240508-en
Max time kernel
40s
Max time network
50s
Command Line
Signatures
Detect Vidar Stealer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Stealc
Vidar
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp | N/A |
Reads data files stored by FTP clients
Checks installed software on the system
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1696 set thread context of 4296 | N/A | C:\Users\Admin\AppData\Local\Temp\b7f851c1e033dabb837f079c6f81e7a460721c7076c355110840d69d3882cdc0.exe | C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp | N/A |
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b7f851c1e033dabb837f079c6f81e7a460721c7076c355110840d69d3882cdc0.exe
"C:\Users\Admin\AppData\Local\Temp\b7f851c1e033dabb837f079c6f81e7a460721c7076c355110840d69d3882cdc0.exe"
C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp
C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp" & rd /s /q "C:\ProgramData\KKFHJDAEHIEH" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 10
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | t.me | udp |
| US | 8.8.8.8:53 | steamcommunity.com | udp |
| US | 8.8.8.8:53 | tea.arpdabl.org | udp |
Files
memory/1696-0-0x0000000000930000-0x0000000000931000-memory.dmp
memory/1696-2-0x0000000004130000-0x0000000004240000-memory.dmp
memory/4296-4-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1696-9-0x0000000000400000-0x0000000000635000-memory.dmp
memory/4296-8-0x0000000000400000-0x0000000000648000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\kat4AB5.tmp
| MD5 | 66064dbdb70a5eb15ebf3bf65aba254b |
| SHA1 | 0284fd320f99f62aca800fb1251eff4c31ec4ed7 |
| SHA256 | 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795 |
| SHA512 | b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f |
memory/4296-10-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4296-11-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4296-12-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4296-14-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4296-13-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4296-15-0x0000000000400000-0x0000000000648000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-28 20:40
Reported
2024-06-28 20:43
Platform
win11-20240611-en
Max time kernel
146s
Max time network
149s
Command Line
Signatures
Detect Vidar Stealer
| 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 |
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| N/A | N/A | N/A | N/A |
Stealc
Vidar
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp | N/A |
Reads user/profile data of web browsers
Checks installed software on the system
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3368 set thread context of 4916 | N/A | C:\Users\Admin\AppData\Local\Temp\b7f851c1e033dabb837f079c6f81e7a460721c7076c355110840d69d3882cdc0.exe | C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\b7f851c1e033dabb837f079c6f81e7a460721c7076c355110840d69d3882cdc0.exe
"C:\Users\Admin\AppData\Local\Temp\b7f851c1e033dabb837f079c6f81e7a460721c7076c355110840d69d3882cdc0.exe"
C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp
C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| US | 8.8.8.8:53 | 23.249.124.192.in-addr.arpa | udp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| DE | 195.201.251.214:9000 | 195.201.251.214 | tcp |
| NL | 52.111.243.30:443 | tcp |
Files
memory/3368-0-0x0000000002390000-0x0000000002391000-memory.dmp
memory/3368-1-0x0000000002A60000-0x0000000002B70000-memory.dmp
memory/4916-8-0x0000000000400000-0x0000000000648000-memory.dmp
memory/3368-10-0x0000000000400000-0x0000000000635000-memory.dmp
memory/4916-9-0x0000000000400000-0x0000000000648000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\kat4F1A.tmp
| MD5 | 66064dbdb70a5eb15ebf3bf65aba254b |
| SHA1 | 0284fd320f99f62aca800fb1251eff4c31ec4ed7 |
| SHA256 | 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795 |
| SHA512 | b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f |
memory/4916-4-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4916-24-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4916-25-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4916-27-0x000000002D130000-0x000000002D38F000-memory.dmp
memory/4916-35-0x0000000000400000-0x0000000000648000-memory.dmp
memory/4916-36-0x0000000000400000-0x0000000000648000-memory.dmp