Malware Analysis Report

2024-11-16 13:48

Sample ID 240629-b55kca1ekm
Target 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c
SHA256 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c
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

927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c

Threat Level: Known bad

The file 927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Stealc

Detect Vidar Stealer

Downloads MZ/PE file

Executes dropped EXE

Checks computer location settings

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Checks processor information in registry

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Delays execution with timeout.exe

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-29 01:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-29 01:44

Reported

2024-06-29 01:47

Platform

win10v2004-20240611-en

Max time kernel

132s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
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Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4176 set thread context of 4816 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4176 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp
PID 4176 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp
PID 4176 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp
PID 4176 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp
PID 4176 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp
PID 4176 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp
PID 4176 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp
PID 4176 wrote to memory of 4816 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp
PID 4816 wrote to memory of 5072 N/A C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp C:\Windows\SysWOW64\cmd.exe
PID 4816 wrote to memory of 5072 N/A C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp C:\Windows\SysWOW64\cmd.exe
PID 4816 wrote to memory of 5072 N/A C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp C:\Windows\SysWOW64\cmd.exe
PID 5072 wrote to memory of 4536 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 5072 wrote to memory of 4536 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 5072 wrote to memory of 4536 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe

"C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe"

C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp

C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp" & rd /s /q "C:\ProgramData\KFBGDBFBKKJE" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.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 23.249.124.192.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
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
DE 195.201.251.214:9000 195.201.251.214 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 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 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 tea.arpdabl.org udp
DE 207.180.253.128:80 tea.arpdabl.org tcp
US 8.8.8.8:53 128.253.180.207.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp

Files

memory/4176-0-0x0000000002370000-0x0000000002371000-memory.dmp

memory/4176-1-0x00000000029B0000-0x0000000002AC0000-memory.dmp

memory/4816-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat3C9B.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4176-8-0x0000000000400000-0x0000000000635000-memory.dmp

memory/4816-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-25-0x00000000201B0000-0x000000002040F000-memory.dmp

memory/4816-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-34-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-43-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-59-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-60-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-71-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-72-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-73-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4816-76-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-29 01:44

Reported

2024-06-29 01:47

Platform

win11-20240611-en

Max time kernel

91s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
N/A N/A N/A N/A
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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\kat6283.tmp N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3712 set thread context of 4824 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp

Enumerates physical storage devices

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\kat6283.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat6283.tmp N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3712 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 3712 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 3712 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 3712 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 3712 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 3712 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 3712 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 3712 wrote to memory of 4824 N/A C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 4824 wrote to memory of 1068 N/A C:\Users\Admin\AppData\Local\Temp\kat6283.tmp C:\Windows\SysWOW64\cmd.exe
PID 4824 wrote to memory of 1068 N/A C:\Users\Admin\AppData\Local\Temp\kat6283.tmp C:\Windows\SysWOW64\cmd.exe
PID 4824 wrote to memory of 1068 N/A C:\Users\Admin\AppData\Local\Temp\kat6283.tmp C:\Windows\SysWOW64\cmd.exe
PID 1068 wrote to memory of 1496 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1068 wrote to memory of 1496 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1068 wrote to memory of 1496 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe

"C:\Users\Admin\AppData\Local\Temp\927089abadef8b7365ff3b7a21bfe412950a8e04c5a7aa1e50d12725e079bf6c.exe"

C:\Users\Admin\AppData\Local\Temp\kat6283.tmp

C:\Users\Admin\AppData\Local\Temp\kat6283.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat6283.tmp" & rd /s /q "C:\ProgramData\CGCAKKKEGCAK" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.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 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
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 tcp
DE 195.201.251.214:9000 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
DE 207.180.253.128:80 tea.arpdabl.org tcp

Files

memory/3712-0-0x00000000008F0000-0x00000000008F1000-memory.dmp

memory/3712-1-0x0000000002AC0000-0x0000000002BD0000-memory.dmp

memory/4824-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6283.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4824-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3712-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/4824-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-28-0x0000000024D70000-0x0000000024FCF000-memory.dmp

memory/4824-35-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-36-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-44-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-45-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-61-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-62-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-69-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-74-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-75-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4824-78-0x0000000000400000-0x0000000000648000-memory.dmp