Analysis Overview
SHA256
1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65
Threat Level: Known bad
The file 1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65 was found to be: Known bad.
Malicious Activity Summary
Stealc
Detect Vidar Stealer
Vidar
Downloads MZ/PE file
Checks computer location settings
Reads data files stored by FTP clients
Executes dropped EXE
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-07 22:03
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-07 22:03
Reported
2024-06-07 22:06
Platform
win10v2004-20240426-en
Max time kernel
92s
Max time network
123s
Command Line
Signatures
Detect Vidar Stealer
| Description | Indicator | Process | Target |
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Stealc
Vidar
Downloads MZ/PE file
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\kat3623.tmp | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat3623.tmp | N/A |
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3088 set thread context of 1432 | N/A | C:\Users\Admin\AppData\Local\Temp\1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65.exe | C:\Users\Admin\AppData\Local\Temp\kat3623.tmp |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\kat3623.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\kat3623.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat3623.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat3623.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\kat3623.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65.exe
"C:\Users\Admin\AppData\Local\Temp\1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65.exe"
C:\Users\Admin\AppData\Local\Temp\kat3623.tmp
C:\Users\Admin\AppData\Local\Temp\kat3623.tmp
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat3623.tmp" & rd /s /q "C:\ProgramData\BFIJKEBFBFHI" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 10
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.167.154.149.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 145.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.249.124.192.in-addr.arpa | udp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| US | 8.8.8.8:53 | 18.190.202.116.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
Files
memory/3088-0-0x00000000022D0000-0x00000000022D1000-memory.dmp
memory/3088-2-0x0000000002A90000-0x0000000002BF3000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\kat3623.tmp
| MD5 | 66064dbdb70a5eb15ebf3bf65aba254b |
| SHA1 | 0284fd320f99f62aca800fb1251eff4c31ec4ed7 |
| SHA256 | 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795 |
| SHA512 | b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f |
memory/3088-10-0x0000000000400000-0x000000000067A000-memory.dmp
memory/1432-9-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1432-4-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1432-8-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1432-24-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1432-25-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1432-27-0x000000001B780000-0x000000001B9DF000-memory.dmp
memory/1432-42-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1432-43-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1432-59-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1432-60-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1432-71-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1432-72-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1432-73-0x0000000000400000-0x0000000000648000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-07 22:03
Reported
2024-06-07 22:06
Platform
win11-20240508-en
Max time kernel
146s
Max time network
150s
Command Line
Signatures
Detect Vidar Stealer
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Stealc
Vidar
Downloads MZ/PE file
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katA41F.tmp | N/A |
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1340 set thread context of 2100 | N/A | C:\Users\Admin\AppData\Local\Temp\1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65.exe | C:\Users\Admin\AppData\Local\Temp\katA41F.tmp |
Enumerates physical storage devices
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\katA41F.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\katA41F.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katA41F.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katA41F.tmp | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\katA41F.tmp | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65.exe
"C:\Users\Admin\AppData\Local\Temp\1b3f990d26ed6121066761d6d0bae20cc69c97dda48a5e11c11c34cef8d47f65.exe"
C:\Users\Admin\AppData\Local\Temp\katA41F.tmp
C:\Users\Admin\AppData\Local\Temp\katA41F.tmp
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\katA41F.tmp" & rd /s /q "C:\ProgramData\CAFBGDHCBAEH" & exit
C:\Windows\SysWOW64\timeout.exe
timeout /t 10
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | t.me | udp |
| NL | 149.154.167.99:443 | t.me | tcp |
| US | 8.8.8.8:53 | 99.167.154.149.in-addr.arpa | udp |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | tcp | |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
| DE | 116.202.190.18:5432 | 116.202.190.18 | tcp |
Files
memory/1340-0-0x00000000025E0000-0x00000000025E1000-memory.dmp
memory/1340-1-0x00000000040B0000-0x0000000004213000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\katA41F.tmp
| MD5 | 66064dbdb70a5eb15ebf3bf65aba254b |
| SHA1 | 0284fd320f99f62aca800fb1251eff4c31ec4ed7 |
| SHA256 | 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795 |
| SHA512 | b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f |
memory/2100-8-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2100-9-0x0000000000400000-0x0000000000648000-memory.dmp
memory/1340-10-0x0000000000400000-0x000000000067A000-memory.dmp
memory/2100-4-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2100-24-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2100-25-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2100-27-0x000000001B870000-0x000000001BACF000-memory.dmp
memory/2100-42-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2100-43-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2100-59-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2100-60-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2100-71-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2100-72-0x0000000000400000-0x0000000000648000-memory.dmp
memory/2100-75-0x0000000000400000-0x0000000000648000-memory.dmp