Malware Analysis Report

2024-11-30 07:04

Sample ID 240601-hrcezadc9v
Target bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20
SHA256 bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20
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

bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20

Threat Level: Known bad

The file bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

Vidar

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

Checks processor information in registry

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-01 06:57

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 06:57

Reported

2024-06-01 07:00

Platform

win10v2004-20240508-en

Max time kernel

132s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.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\kat6244.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 4132 set thread context of 1376 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat6244.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\kat6244.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6244.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6244.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4132 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4132 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4132 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4132 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4132 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4132 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4132 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp
PID 4132 wrote to memory of 1376 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat6244.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe

"C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe"

C:\Users\Admin\AppData\Local\Temp\kat6244.tmp

C:\Users\Admin\AppData\Local\Temp\kat6244.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 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 132.102.69.159.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 97.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/4132-0-0x00000000007F0000-0x00000000007F1000-memory.dmp

memory/4132-2-0x0000000002A00000-0x0000000002B4C000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6244.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1376-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1376-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4132-9-0x0000000000400000-0x0000000000663000-memory.dmp

memory/1376-10-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1376-13-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1376-14-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1376-16-0x000000001DBD0000-0x000000001DE2F000-memory.dmp

memory/1376-31-0x0000000000400000-0x0000000000649000-memory.dmp

memory/1376-32-0x0000000000400000-0x0000000000649000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 06:57

Reported

2024-06-01 07:00

Platform

win11-20240426-en

Max time kernel

91s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.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\kat4314.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 784 set thread context of 4996 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat4314.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\kat4314.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4314.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4314.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 784 wrote to memory of 4996 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat4314.tmp
PID 784 wrote to memory of 4996 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat4314.tmp
PID 784 wrote to memory of 4996 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat4314.tmp
PID 784 wrote to memory of 4996 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat4314.tmp
PID 784 wrote to memory of 4996 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat4314.tmp
PID 784 wrote to memory of 4996 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat4314.tmp
PID 784 wrote to memory of 4996 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat4314.tmp
PID 784 wrote to memory of 4996 N/A C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe C:\Users\Admin\AppData\Local\Temp\kat4314.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe

"C:\Users\Admin\AppData\Local\Temp\bef99d959d60db4a024f2bfbebbbc5ab43e7658f16965c9c11e2eb99f5740f20.exe"

C:\Users\Admin\AppData\Local\Temp\kat4314.tmp

C:\Users\Admin\AppData\Local\Temp\kat4314.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.in-addr.arpa udp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
DE 159.69.102.132:5432 159.69.102.132 tcp
NL 52.111.243.31:443 tcp

Files

memory/784-0-0x00000000024C0000-0x00000000024C1000-memory.dmp

memory/784-1-0x00000000040A0000-0x00000000041EC000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4314.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4996-8-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4996-9-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4996-4-0x0000000000400000-0x0000000000649000-memory.dmp

memory/784-10-0x0000000000400000-0x0000000000663000-memory.dmp

memory/4996-24-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4996-25-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4996-27-0x0000000026030000-0x000000002628F000-memory.dmp

memory/4996-42-0x0000000000400000-0x0000000000649000-memory.dmp

memory/4996-43-0x0000000000400000-0x0000000000649000-memory.dmp