Malware Analysis Report

2024-11-16 13:51

Sample ID 240628-emlw3azfpg
Target 93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc
SHA256 93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc

Threat Level: Known bad

The file 93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Stealc

Detect Vidar Stealer

Downloads MZ/PE file

Executes dropped EXE

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Checks computer location settings

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Checks processor information in registry

Suspicious use of WriteProcessMemory

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 04:03

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 04:03

Reported

2024-06-28 04:06

Platform

win11-20240611-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
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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\kat3F5B.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 2592 set thread context of 3352 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3F5B.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\kat3F5B.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat3F5B.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 2592 wrote to memory of 3352 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp
PID 2592 wrote to memory of 3352 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp
PID 2592 wrote to memory of 3352 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp
PID 2592 wrote to memory of 3352 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp
PID 2592 wrote to memory of 3352 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp
PID 2592 wrote to memory of 3352 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp
PID 2592 wrote to memory of 3352 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp
PID 2592 wrote to memory of 3352 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp
PID 3352 wrote to memory of 2576 N/A C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp C:\Windows\SysWOW64\cmd.exe
PID 3352 wrote to memory of 2576 N/A C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp C:\Windows\SysWOW64\cmd.exe
PID 3352 wrote to memory of 2576 N/A C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp C:\Windows\SysWOW64\cmd.exe
PID 2576 wrote to memory of 1524 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2576 wrote to memory of 1524 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2576 wrote to memory of 1524 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe

"C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe"

C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp

C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp" & rd /s /q "C:\ProgramData\KJKJJEGIDBGI" & 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 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.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 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/2592-0-0x00000000022E0000-0x00000000022E1000-memory.dmp

memory/2592-1-0x0000000004050000-0x0000000004160000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3F5B.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3352-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2592-10-0x0000000000400000-0x000000000058E000-memory.dmp

memory/3352-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-27-0x000000002F710000-0x000000002F96F000-memory.dmp

memory/3352-35-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-36-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-44-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-45-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-61-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-62-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-73-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-74-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-75-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3352-76-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 04:03

Reported

2024-06-28 04:06

Platform

win10v2004-20240611-en

Max time kernel

130s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
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Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3BD0.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 2384 set thread context of 1576 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3BD0.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\kat3BD0.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat3BD0.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 2384 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp
PID 2384 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp
PID 2384 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp
PID 2384 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp
PID 2384 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp
PID 2384 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp
PID 2384 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp
PID 2384 wrote to memory of 1576 N/A C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp
PID 1576 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp C:\Windows\SysWOW64\cmd.exe
PID 1576 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp C:\Windows\SysWOW64\cmd.exe
PID 1576 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp C:\Windows\SysWOW64\cmd.exe
PID 3508 wrote to memory of 1416 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3508 wrote to memory of 1416 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3508 wrote to memory of 1416 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe

"C:\Users\Admin\AppData\Local\Temp\93ff183ce0cd38c9a6078270297cf6e359a3689ebe47ce927d5d59b096860ecc.exe"

C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp

C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp" & rd /s /q "C:\ProgramData\CBGCBKFBGIII" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
BE 2.17.107.98:443 www.bing.com tcp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 98.107.17.2.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 41.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.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
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 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
US 8.8.8.8:53 58.55.71.13.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
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 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp

Files

memory/2384-0-0x00000000021E0000-0x00000000021E1000-memory.dmp

memory/2384-1-0x0000000002A50000-0x0000000002B60000-memory.dmp

memory/1576-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3BD0.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2384-10-0x0000000000400000-0x000000000058E000-memory.dmp

memory/1576-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-25-0x0000000022800000-0x0000000022A5F000-memory.dmp

memory/1576-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-34-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-43-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-59-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-60-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-71-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-72-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-73-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1576-74-0x0000000000400000-0x0000000000648000-memory.dmp