Malware Analysis Report

2024-11-16 13:43

Sample ID 240607-wtkq1sbg2v
Target d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2
SHA256 d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2
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

d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2

Threat Level: Known bad

The file d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Stealc

Detect Vidar Stealer

Downloads MZ/PE file

Reads user/profile data of web browsers

Executes dropped EXE

Checks installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 18:12

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 18:12

Reported

2024-06-07 18:15

Platform

win10v2004-20240508-en

Max time kernel

93s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.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

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\kat518B.tmp N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3560 set thread context of 4852 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat518B.tmp

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\kat518B.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat518B.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat518B.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3560 wrote to memory of 4852 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat518B.tmp
PID 3560 wrote to memory of 4852 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat518B.tmp
PID 3560 wrote to memory of 4852 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat518B.tmp
PID 3560 wrote to memory of 4852 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat518B.tmp
PID 3560 wrote to memory of 4852 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat518B.tmp
PID 3560 wrote to memory of 4852 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat518B.tmp
PID 3560 wrote to memory of 4852 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat518B.tmp
PID 3560 wrote to memory of 4852 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat518B.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe

"C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe"

C:\Users\Admin\AppData\Local\Temp\kat518B.tmp

C:\Users\Admin\AppData\Local\Temp\kat518B.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 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 105.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.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
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.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
US 8.8.8.8:53 149.220.183.52.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 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp

Files

memory/3560-0-0x00000000022E0000-0x00000000022E1000-memory.dmp

memory/3560-1-0x0000000002B30000-0x0000000002C93000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat518B.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4852-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4852-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4852-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3560-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/4852-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4852-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4852-25-0x000000001B750000-0x000000001B9AF000-memory.dmp

memory/4852-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4852-41-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 18:12

Reported

2024-06-07 18:15

Platform

win11-20240426-en

Max time kernel

91s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.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

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\kat4C8A.tmp N/A

Reads user/profile data of web browsers

spyware stealer

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3628 set thread context of 1580 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp

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\kat4C8A.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3628 wrote to memory of 1580 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp
PID 3628 wrote to memory of 1580 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp
PID 3628 wrote to memory of 1580 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp
PID 3628 wrote to memory of 1580 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp
PID 3628 wrote to memory of 1580 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp
PID 3628 wrote to memory of 1580 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp
PID 3628 wrote to memory of 1580 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp
PID 3628 wrote to memory of 1580 N/A C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe

"C:\Users\Admin\AppData\Local\Temp\d9eddd4d3ef0d483109d3feeeeeaad8a2b263a73bffddfd2a3c5aa5179cd6ea2.exe"

C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp

C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp

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
US 8.8.8.8:53 105.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 22.249.124.192.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
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/3628-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/3628-1-0x00000000041B0000-0x0000000004313000-memory.dmp

memory/1580-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1580-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3628-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/1580-10-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4C8A.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1580-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1580-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1580-28-0x0000000026030000-0x000000002628F000-memory.dmp

memory/1580-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1580-43-0x0000000000400000-0x0000000000648000-memory.dmp