Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-na59lsba7t
Target b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e
SHA256 b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e
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

b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e

Threat Level: Known bad

The file b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e 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

Suspicious use of WriteProcessMemory

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-08 11:12

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 11:12

Reported

2024-06-08 11:15

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.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\kat48E0.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 4724 set thread context of 664 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat48E0.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\kat48E0.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4724 wrote to memory of 664 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp
PID 4724 wrote to memory of 664 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp
PID 4724 wrote to memory of 664 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp
PID 4724 wrote to memory of 664 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp
PID 4724 wrote to memory of 664 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp
PID 4724 wrote to memory of 664 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp
PID 4724 wrote to memory of 664 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp
PID 4724 wrote to memory of 664 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe

"C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe"

C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp

C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.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 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.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 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 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 98.58.20.217.in-addr.arpa udp
US 52.111.227.11:443 tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 89.65.42.20.in-addr.arpa udp

Files

memory/4724-0-0x0000000000770000-0x0000000000771000-memory.dmp

memory/4724-1-0x0000000002A30000-0x0000000002B93000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat48E0.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/664-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/664-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4724-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/664-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/664-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/664-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/664-17-0x000000001B750000-0x000000001B9AF000-memory.dmp

memory/664-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/664-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 11:12

Reported

2024-06-08 11:15

Platform

win11-20240426-en

Max time kernel

147s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.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\kat3B24.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 1532 set thread context of 3948 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat3B24.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\kat3B24.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1532 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp
PID 1532 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp
PID 1532 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp
PID 1532 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp
PID 1532 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp
PID 1532 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp
PID 1532 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp
PID 1532 wrote to memory of 3948 N/A C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe

"C:\Users\Admin\AppData\Local\Temp\b86dcc6bd10a5618f58de53bad8f691ffe3f246bcac66b6bba4f2582f587559e.exe"

C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp

C:\Users\Admin\AppData\Local\Temp\kat3B24.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 8.8.8.8:53 240.221.184.93.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/1532-0-0x00000000023E0000-0x00000000023E1000-memory.dmp

memory/1532-1-0x00000000040F0000-0x0000000004253000-memory.dmp

memory/3948-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3948-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3948-10-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3B24.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1532-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/3948-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3948-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3948-27-0x00000000260A0000-0x00000000262FF000-memory.dmp

memory/3948-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3948-43-0x0000000000400000-0x0000000000648000-memory.dmp