Malware Analysis Report

2024-11-16 13:50

Sample ID 240628-cfp9ssxhln
Target 9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024
SHA256 9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024
Tags
stealc vidar discovery spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024

Threat Level: Known bad

The file 9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Vidar

Stealc

Downloads MZ/PE file

Executes dropped EXE

Reads user/profile data of web browsers

Checks computer location settings

Reads data files stored by FTP clients

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Delays execution with timeout.exe

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 02:01

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 02:01

Reported

2024-06-28 02:03

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe"

Signatures

Detect Vidar Stealer

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
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
N/A N/A N/A N/A

Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2972 set thread context of 1792 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.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\kat5ED9.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2972 wrote to memory of 1792 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 2972 wrote to memory of 1792 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 2972 wrote to memory of 1792 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 2972 wrote to memory of 1792 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 2972 wrote to memory of 1792 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 2972 wrote to memory of 1792 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 2972 wrote to memory of 1792 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 2972 wrote to memory of 1792 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 1792 wrote to memory of 3996 N/A C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp C:\Windows\SysWOW64\cmd.exe
PID 1792 wrote to memory of 3996 N/A C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp C:\Windows\SysWOW64\cmd.exe
PID 1792 wrote to memory of 3996 N/A C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp C:\Windows\SysWOW64\cmd.exe
PID 3996 wrote to memory of 4120 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3996 wrote to memory of 4120 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3996 wrote to memory of 4120 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe

"C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe"

C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp

C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp" & rd /s /q "C:\ProgramData\HJJKFBGCFHCG" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
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 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 24.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 214.251.201.195.in-addr.arpa udp
DE 195.201.251.214:9000 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 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 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 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
US 8.8.8.8:53 228.249.119.40.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
US 8.8.8.8:53 tea.arpdabl.org udp
DE 207.180.253.128:80 tea.arpdabl.org tcp
US 8.8.8.8:53 128.253.180.207.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp

Files

memory/2972-0-0x00000000021F0000-0x00000000021F1000-memory.dmp

memory/2972-2-0x0000000003F70000-0x0000000004080000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1792-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2972-9-0x0000000000400000-0x000000000058E000-memory.dmp

memory/1792-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1792-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1792-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1792-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1792-25-0x0000000022720000-0x000000002297F000-memory.dmp

memory/1792-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1792-41-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1792-57-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1792-58-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1792-69-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1792-70-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1792-71-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 02:01

Reported

2024-06-28 02:03

Platform

win11-20240508-en

Max time kernel

91s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe"

Signatures

Detect Vidar Stealer

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
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
N/A N/A N/A N/A
N/A N/A N/A N/A

Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 336 set thread context of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat7CA2.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\kat7CA2.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 336 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp
PID 336 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp
PID 336 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp
PID 336 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp
PID 336 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp
PID 336 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp
PID 336 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp
PID 336 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp
PID 1992 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp C:\Windows\SysWOW64\cmd.exe
PID 1992 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp C:\Windows\SysWOW64\cmd.exe
PID 1992 wrote to memory of 1656 N/A C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp C:\Windows\SysWOW64\cmd.exe
PID 1656 wrote to memory of 2592 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1656 wrote to memory of 2592 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1656 wrote to memory of 2592 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe

"C:\Users\Admin\AppData\Local\Temp\9d45c4f7f0737a4cc15cb9b4da5839a035152378a467605f2d38d0598ed39024.exe"

C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp

C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp" & rd /s /q "C:\ProgramData\CBAKJKJJJECF" & 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
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 22.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 214.251.201.195.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
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 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
DE 207.180.253.128:80 tea.arpdabl.org tcp

Files

memory/336-0-0x0000000000840000-0x0000000000841000-memory.dmp

memory/336-2-0x0000000003FD0000-0x00000000040E0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat7CA2.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1992-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1992-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/336-9-0x0000000000400000-0x000000000058E000-memory.dmp

memory/1992-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1992-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1992-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1992-27-0x000000002D1B0000-0x000000002D40F000-memory.dmp

memory/1992-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1992-43-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1992-59-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1992-60-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1992-71-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1992-72-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1992-73-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1992-74-0x0000000000400000-0x0000000000648000-memory.dmp