Malware Analysis Report

2024-11-16 13:51

Sample ID 240628-jz9wwaygnf
Target 9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e
SHA256 9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e
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

9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e

Threat Level: Known bad

The file 9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e 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 behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-28 08:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 08:07

Reported

2024-06-28 08:10

Platform

win10v2004-20240508-en

Max time kernel

93s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.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\kat4BBE.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 4480 set thread context of 212 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat4BBE.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\kat4BBE.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4480 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp
PID 4480 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp
PID 4480 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp
PID 4480 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp
PID 4480 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp
PID 4480 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp
PID 4480 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp
PID 4480 wrote to memory of 212 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe

"C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe"

C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp

C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 45.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.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 24.249.124.192.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
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
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 35.15.31.184.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp

Files

memory/4480-0-0x00000000021E0000-0x00000000021E1000-memory.dmp

memory/4480-2-0x0000000003FD0000-0x00000000040E0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4BBE.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4480-9-0x0000000000400000-0x000000000058E000-memory.dmp

memory/212-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/212-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/212-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/212-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/212-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/212-25-0x00000000226E0000-0x000000002293F000-memory.dmp

memory/212-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/212-41-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 08:07

Reported

2024-06-28 08:10

Platform

win11-20240611-en

Max time kernel

92s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.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\kat2D2A.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 5064 set thread context of 1620 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat2D2A.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\kat2D2A.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat2D2A.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5064 wrote to memory of 1620 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat2D2A.tmp
PID 5064 wrote to memory of 1620 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat2D2A.tmp
PID 5064 wrote to memory of 1620 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat2D2A.tmp
PID 5064 wrote to memory of 1620 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat2D2A.tmp
PID 5064 wrote to memory of 1620 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat2D2A.tmp
PID 5064 wrote to memory of 1620 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat2D2A.tmp
PID 5064 wrote to memory of 1620 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat2D2A.tmp
PID 5064 wrote to memory of 1620 N/A C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe C:\Users\Admin\AppData\Local\Temp\kat2D2A.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe

"C:\Users\Admin\AppData\Local\Temp\9c1188618e91283e5c12c0dcc36e7bf869b9da02c890171296d593547f85f26e.exe"

C:\Users\Admin\AppData\Local\Temp\kat2D2A.tmp

C:\Users\Admin\AppData\Local\Temp\kat2D2A.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
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 24.249.124.192.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

Files

memory/5064-0-0x0000000002530000-0x0000000002531000-memory.dmp

memory/5064-2-0x00000000040A0000-0x00000000041B0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat2D2A.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1620-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1620-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/5064-10-0x0000000000400000-0x000000000058E000-memory.dmp

memory/1620-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1620-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1620-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1620-28-0x00000000227B0000-0x0000000022A0F000-memory.dmp

memory/1620-35-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1620-36-0x0000000000400000-0x0000000000648000-memory.dmp