Malware Analysis Report

2024-11-16 13:51

Sample ID 240628-hh1ffawdkd
Target 4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550
SHA256 4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550
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

4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550

Threat Level: Known bad

The file 4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Detect Vidar Stealer

Stealc

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

2024-06-28 06:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 06:44

Reported

2024-06-28 06:47

Platform

win10v2004-20240611-en

Max time kernel

134s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.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\kat5ED9.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 4720 set thread context of 4392 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4720 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 4720 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 4720 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 4720 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 4720 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 4720 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 4720 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp
PID 4720 wrote to memory of 4392 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe

"C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe"

C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp

C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.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 99.167.154.149.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
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 31.121.18.2.in-addr.arpa udp
US 8.8.8.8:53 45.19.74.20.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/4720-0-0x0000000000670000-0x0000000000671000-memory.dmp

memory/4720-2-0x0000000002960000-0x0000000002A70000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat5ED9.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4720-9-0x0000000000400000-0x000000000058E000-memory.dmp

memory/4392-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4392-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4392-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4392-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4392-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4392-25-0x0000000022790000-0x00000000229EF000-memory.dmp

memory/4392-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4392-34-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 06:44

Reported

2024-06-28 06:47

Platform

win11-20240508-en

Max time kernel

92s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.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\kat3EDE.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 2028 set thread context of 5116 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2028 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp
PID 2028 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp
PID 2028 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp
PID 2028 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp
PID 2028 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp
PID 2028 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp
PID 2028 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp
PID 2028 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe

"C:\Users\Admin\AppData\Local\Temp\4cf093eed3801818a0ec2a6823918361875ae9c9e64a5054d9272ecf1236f550.exe"

C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp

C:\Users\Admin\AppData\Local\Temp\kat3EDE.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 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 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.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

Files

memory/2028-0-0x00000000023F0000-0x00000000023F1000-memory.dmp

memory/2028-2-0x0000000003FA0000-0x00000000040B0000-memory.dmp

memory/5116-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5116-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5116-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2028-9-0x0000000000400000-0x000000000058E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3EDE.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/5116-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5116-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5116-28-0x000000002D1A0000-0x000000002D3FF000-memory.dmp

memory/5116-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5116-43-0x0000000000400000-0x0000000000648000-memory.dmp