Malware Analysis Report

2024-09-11 16:28

Sample ID 240614-by3geazena
Target 9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885
SHA256 9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885
Tags
stealc vidar stealer discovery spyware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885

Threat Level: Known bad

The file 9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885 was found to be: Known bad.

Malicious Activity Summary

stealc vidar stealer discovery spyware

Stealc

Detect Vidar Stealer

Vidar

Checks computer location settings

Reads data files stored by FTP clients

Checks installed software on the system

Unsigned PE

Program crash

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Suspicious use of WriteProcessMemory

Delays execution with timeout.exe

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Unsecured Credentials
T1552
Credentials In Files
T1552.001
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Data from Local System
T1005
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-14 01:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 01:34

Reported

2024-06-14 01:34

Platform

win7-20240611-en

Max time kernel

0s

Max time network

28s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.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

Delays execution with timeout.exe

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

Processes

C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe

"C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe" & rd /s /q "C:\ProgramData\IEHDBGDHDAEC" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
US 8.8.8.8:53 steamcommunity.com udp

Files

memory/2264-3-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2264-2-0x0000000000220000-0x0000000000255000-memory.dmp

memory/2264-1-0x00000000024D0000-0x00000000025D0000-memory.dmp

memory/2264-4-0x0000000000400000-0x0000000002378000-memory.dmp

memory/2264-5-0x0000000000220000-0x0000000000255000-memory.dmp

memory/2264-7-0x00000000024D0000-0x00000000025D0000-memory.dmp

memory/2264-6-0x0000000000400000-0x0000000002378000-memory.dmp

memory/2264-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2264-11-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2264-10-0x00000000024D0000-0x00000000025D0000-memory.dmp

memory/2264-9-0x0000000000400000-0x0000000002378000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 01:34

Reported

2024-06-14 01:34

Platform

win10v2004-20240611-en

Max time kernel

30s

Max time network

31s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.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
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N/A N/A N/A N/A

Stealc

stealer stealc

Vidar

stealer vidar

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe N/A

Reads data files stored by FTP clients

spyware stealer

Checks installed software on the system

discovery

Enumerates physical storage devices

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe

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\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe N/A

Delays execution with timeout.exe

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2152 wrote to memory of 1916 N/A C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe C:\Windows\SysWOW64\cmd.exe
PID 2152 wrote to memory of 1916 N/A C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe C:\Windows\SysWOW64\cmd.exe
PID 2152 wrote to memory of 1916 N/A C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe C:\Windows\SysWOW64\cmd.exe
PID 1916 wrote to memory of 2548 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1916 wrote to memory of 2548 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1916 wrote to memory of 2548 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe

"C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\9fd04eb7256cd879dc38ea0765ffc538b89e708ba30250f23d947c3713f97885.exe" & rd /s /q "C:\ProgramData\JJJEGCGDGHCB" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2152 -ip 2152

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2152 -s 1816

Network

Country Destination Domain Proto
US 8.8.8.8:53 t.me udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 steamcommunity.com udp

Files

memory/2152-3-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2152-2-0x00000000024F0000-0x0000000002525000-memory.dmp

memory/2152-1-0x0000000002540000-0x0000000002640000-memory.dmp

memory/2152-4-0x0000000000400000-0x0000000002378000-memory.dmp

memory/2152-5-0x0000000002540000-0x0000000002640000-memory.dmp

memory/2152-6-0x0000000000400000-0x0000000002378000-memory.dmp

memory/2152-7-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2152-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2152-8-0x0000000000400000-0x0000000002378000-memory.dmp