Malware Analysis Report

2024-09-11 16:51

Sample ID 240615-p85ams1fph
Target !#Fileş_#!UŞe~Passw0rd__~.~140615~.~__.rar
SHA256 df6c90984fb8ff5d00e91148c3d6c0884803eab382f43349d735aaf8fa10069d
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

df6c90984fb8ff5d00e91148c3d6c0884803eab382f43349d735aaf8fa10069d

Threat Level: Known bad

The file !#Fileş_#!UŞe~Passw0rd__~.~140615~.~__.rar was found to be: Known bad.

Malicious Activity Summary

stealc vidar stealer discovery spyware

Stealc

Vidar

Detect Vidar Stealer

Reads data files stored by FTP clients

Loads dropped DLL

Checks computer location settings

Checks installed software on the system

Suspicious use of SetThreadContext

Enumerates physical storage devices

Program crash

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

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

2024-06-15 13:01

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-15 13:00

Reported

2024-06-15 13:04

Platform

win7-20240221-en

Max time kernel

147s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.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

Stealc

stealer stealc

Vidar

stealer vidar

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\coml.au3 N/A
N/A N/A C:\Windows\SysWOW64\WerFault.exe N/A
N/A N/A C:\Windows\SysWOW64\WerFault.exe N/A
N/A N/A C:\Windows\SysWOW64\WerFault.exe N/A
N/A N/A C:\Windows\SysWOW64\WerFault.exe N/A
N/A N/A C:\Windows\SysWOW64\WerFault.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1936 set thread context of 2524 N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe C:\Windows\SysWOW64\netsh.exe

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\coml.au3

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1936 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe C:\Windows\SysWOW64\netsh.exe
PID 1936 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe C:\Windows\SysWOW64\netsh.exe
PID 1936 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe C:\Windows\SysWOW64\netsh.exe
PID 1936 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe C:\Windows\SysWOW64\netsh.exe
PID 1936 wrote to memory of 2524 N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe C:\Windows\SysWOW64\netsh.exe
PID 2524 wrote to memory of 2656 N/A C:\Windows\SysWOW64\netsh.exe C:\Users\Admin\AppData\Local\Temp\coml.au3
PID 2524 wrote to memory of 2656 N/A C:\Windows\SysWOW64\netsh.exe C:\Users\Admin\AppData\Local\Temp\coml.au3
PID 2524 wrote to memory of 2656 N/A C:\Windows\SysWOW64\netsh.exe C:\Users\Admin\AppData\Local\Temp\coml.au3
PID 2524 wrote to memory of 2656 N/A C:\Windows\SysWOW64\netsh.exe C:\Users\Admin\AppData\Local\Temp\coml.au3
PID 2524 wrote to memory of 2656 N/A C:\Windows\SysWOW64\netsh.exe C:\Users\Admin\AppData\Local\Temp\coml.au3
PID 2524 wrote to memory of 2656 N/A C:\Windows\SysWOW64\netsh.exe C:\Users\Admin\AppData\Local\Temp\coml.au3
PID 2656 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\coml.au3 C:\Windows\SysWOW64\WerFault.exe
PID 2656 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\coml.au3 C:\Windows\SysWOW64\WerFault.exe
PID 2656 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\coml.au3 C:\Windows\SysWOW64\WerFault.exe
PID 2656 wrote to memory of 2160 N/A C:\Users\Admin\AppData\Local\Temp\coml.au3 C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe

"C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe"

C:\Windows\SysWOW64\netsh.exe

C:\Windows\SysWOW64\netsh.exe

C:\Users\Admin\AppData\Local\Temp\coml.au3

C:\Users\Admin\AppData\Local\Temp\coml.au3

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2656 -s 148

Network

N/A

Files

memory/1936-10-0x000007FEF5F68000-0x000007FEF5F69000-memory.dmp

memory/1936-11-0x000007FEF5F51000-0x000007FEF5F69000-memory.dmp

memory/1936-13-0x000007FEF5F51000-0x000007FEF5F69000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\92f3679a

MD5 87729f476df6bbbc6519fd2dcfb8cfee
SHA1 4867adb3bbfe47e4641b1d857666ad88f39ab61d
SHA256 265a99ee2148751731e9ee3387fbf3f2e8e4294430531e5e4174ff07f6229903
SHA512 70da14135700a79ce3521c60b7b21ce428c65089b37dcd1e8acf5c3bdd61d1e944e9a52dfdfe4f481cd9b1dede2043a4af94a60c73c72310caaf6ae91c631142

memory/2524-15-0x0000000077750000-0x00000000778F9000-memory.dmp

memory/2524-18-0x0000000073A5E000-0x0000000073A60000-memory.dmp

memory/2524-17-0x0000000073A50000-0x0000000073BC4000-memory.dmp

\Users\Admin\AppData\Local\Temp\coml.au3

MD5 c56b5f0201a3b3de53e561fe76912bfd
SHA1 2a4062e10a5de813f5688221dbeb3f3ff33eb417
SHA256 237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
SHA512 195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

memory/2524-22-0x0000000073A50000-0x0000000073BC4000-memory.dmp

memory/2656-25-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2656-24-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

memory/2524-26-0x0000000073A50000-0x0000000073BC4000-memory.dmp

memory/2656-29-0x0000000000D30000-0x000000000147C000-memory.dmp

memory/2656-35-0x0000000000D30000-0x000000000147C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-15 13:00

Reported

2024-06-15 13:04

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.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

Stealc

stealer stealc

Vidar

stealer vidar

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\coml.au3 N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\coml.au3 N/A

Reads data files stored by FTP clients

spyware stealer

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3792 set thread context of 1716 N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe C:\Windows\SysWOW64\netsh.exe

Enumerates physical storage devices

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\coml.au3 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\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\coml.au3 N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\coml.au3 N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe N/A
N/A N/A C:\Windows\SysWOW64\netsh.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3792 wrote to memory of 1716 N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe C:\Windows\SysWOW64\netsh.exe
PID 3792 wrote to memory of 1716 N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe C:\Windows\SysWOW64\netsh.exe
PID 3792 wrote to memory of 1716 N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe C:\Windows\SysWOW64\netsh.exe
PID 3792 wrote to memory of 1716 N/A C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe C:\Windows\SysWOW64\netsh.exe
PID 1716 wrote to memory of 1824 N/A C:\Windows\SysWOW64\netsh.exe C:\Users\Admin\AppData\Local\Temp\coml.au3
PID 1716 wrote to memory of 1824 N/A C:\Windows\SysWOW64\netsh.exe C:\Users\Admin\AppData\Local\Temp\coml.au3
PID 1716 wrote to memory of 1824 N/A C:\Windows\SysWOW64\netsh.exe C:\Users\Admin\AppData\Local\Temp\coml.au3
PID 1716 wrote to memory of 1824 N/A C:\Windows\SysWOW64\netsh.exe C:\Users\Admin\AppData\Local\Temp\coml.au3
PID 1716 wrote to memory of 1824 N/A C:\Windows\SysWOW64\netsh.exe C:\Users\Admin\AppData\Local\Temp\coml.au3
PID 1824 wrote to memory of 2332 N/A C:\Users\Admin\AppData\Local\Temp\coml.au3 C:\Windows\SysWOW64\cmd.exe
PID 1824 wrote to memory of 2332 N/A C:\Users\Admin\AppData\Local\Temp\coml.au3 C:\Windows\SysWOW64\cmd.exe
PID 1824 wrote to memory of 2332 N/A C:\Users\Admin\AppData\Local\Temp\coml.au3 C:\Windows\SysWOW64\cmd.exe
PID 2332 wrote to memory of 2604 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2332 wrote to memory of 2604 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2332 wrote to memory of 2604 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe

"C:\Users\Admin\AppData\Local\Temp\!#Fileş_#!UŞe~Passw0rd__~.~140615~.~__\Setup.exe"

C:\Windows\SysWOW64\netsh.exe

C:\Windows\SysWOW64\netsh.exe

C:\Users\Admin\AppData\Local\Temp\coml.au3

C:\Users\Admin\AppData\Local\Temp\coml.au3

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\coml.au3" & rd /s /q "C:\ProgramData\DAFBGHCAKKFC" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

Network

Country Destination Domain Proto
US 8.8.8.8:53 feeldog.xyz udp

Files

memory/3792-0-0x00007FFF5D7D0000-0x00007FFF5D942000-memory.dmp

memory/3792-11-0x00007FFF5D7E8000-0x00007FFF5D7E9000-memory.dmp

memory/3792-12-0x00007FFF5D7D0000-0x00007FFF5D942000-memory.dmp

memory/3792-13-0x00007FFF5D7D0000-0x00007FFF5D942000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\b043ffae

MD5 04acf5774799e6fdb55f76891acb12f9
SHA1 ad13be189ac4eb23daea29eb4ee113776565768b
SHA256 1af9e4f53e8ef2773ad92ac943296d2d4034222b30082ceb80a37bcc1d582ca7
SHA512 3d218c172ad4043e5e6138456f26ae03dad3d1b171f602f53de5f92b605213982ee7e9cca279c22747fca114f6c908f4815aa693b3ad04faee59b54dc7a7866e

memory/1716-16-0x00007FFF7C9B0000-0x00007FFF7CBA5000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\coml.au3

MD5 c56b5f0201a3b3de53e561fe76912bfd
SHA1 2a4062e10a5de813f5688221dbeb3f3ff33eb417
SHA256 237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
SHA512 195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c

memory/1824-22-0x0000000001400000-0x0000000001B4C000-memory.dmp

memory/1824-24-0x00007FFF7C9B0000-0x00007FFF7CBA5000-memory.dmp

memory/1824-25-0x0000000001400000-0x0000000001B4C000-memory.dmp

memory/1824-27-0x0000000061E00000-0x0000000061EF3000-memory.dmp

memory/1824-39-0x0000000001400000-0x0000000001B4C000-memory.dmp