Malware Analysis Report

2024-11-16 13:43

Sample ID 240607-t58acacb96
Target b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85
SHA256 b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85
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

b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85

Threat Level: Known bad

The file b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85 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 installed software on the system

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 16:39

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 16:39

Reported

2024-06-07 16:51

Platform

win10v2004-20240508-en

Max time kernel

93s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.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\kat5554.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 3148 set thread context of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat5554.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\kat5554.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5554.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat5554.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3148 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat5554.tmp
PID 3148 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat5554.tmp
PID 3148 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat5554.tmp
PID 3148 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat5554.tmp
PID 3148 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat5554.tmp
PID 3148 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat5554.tmp
PID 3148 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat5554.tmp
PID 3148 wrote to memory of 3492 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat5554.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe

"C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe"

C:\Users\Admin\AppData\Local\Temp\kat5554.tmp

C:\Users\Admin\AppData\Local\Temp\kat5554.tmp

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 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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 203.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.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
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.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 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/3148-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/3148-2-0x00000000040C0000-0x0000000004223000-memory.dmp

memory/3492-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3492-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3492-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3148-10-0x0000000000400000-0x000000000067A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5554.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3492-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3492-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3492-25-0x000000001B7B0000-0x000000001BA0F000-memory.dmp

memory/3492-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3492-41-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 16:39

Reported

2024-06-07 16:51

Platform

win11-20240426-en

Max time kernel

91s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.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\kat6D50.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 1088 set thread context of 2520 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat6D50.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\kat6D50.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1088 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp
PID 1088 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp
PID 1088 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp
PID 1088 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp
PID 1088 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp
PID 1088 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp
PID 1088 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp
PID 1088 wrote to memory of 2520 N/A C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe

"C:\Users\Admin\AppData\Local\Temp\b69558f58e7c1fa69f138ebe4ec2032273081577cef00b2a44f6cb92a93ffc85.exe"

C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp

C:\Users\Admin\AppData\Local\Temp\kat6D50.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
DE 116.202.190.18:5432 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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

Files

memory/1088-0-0x00000000024D0000-0x00000000024D1000-memory.dmp

memory/2520-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1088-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/2520-8-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

C:\Users\Admin\AppData\Local\Temp\kat6D50.tmp

MD5 d7d3e9e68f500a5362ef855382d5934b
SHA1 740495877cbcda9c61c8eb1ce3cb0c0f20738a81
SHA256 8cdc50bc308edd6d0f70d7c8203f0ef469daaa62ae801a00c93e6b9160fef772
SHA512 512f5d5764050274d5beb6c966c787eb50a9850ec4c4886cda14f3a912dc627d29d2cac5db7f825500041a47ce65ecc4e8f728dc934c748f6575ae17d4c2cf89

memory/2520-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1088-2-0x0000000004150000-0x00000000042B3000-memory.dmp

memory/2520-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2520-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2520-18-0x00000000193C0000-0x000000001961F000-memory.dmp

memory/2520-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2520-34-0x0000000000400000-0x0000000000648000-memory.dmp