Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-d3rxksgd61
Target a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000
SHA256 a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000
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

a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000

Threat Level: Known bad

The file a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000 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

2024-06-08 03:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 03:32

Reported

2024-06-08 03:34

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.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\kat6B1E.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 1064 set thread context of 2060 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp

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\kat6B1E.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1064 wrote to memory of 2060 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp
PID 1064 wrote to memory of 2060 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp
PID 1064 wrote to memory of 2060 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp
PID 1064 wrote to memory of 2060 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp
PID 1064 wrote to memory of 2060 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp
PID 1064 wrote to memory of 2060 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp
PID 1064 wrote to memory of 2060 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp
PID 1064 wrote to memory of 2060 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe

"C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe"

C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp

C:\Users\Admin\AppData\Local\Temp\kat6B1E.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 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 66.229.138.52.in-addr.arpa udp

Files

memory/1064-0-0x0000000002520000-0x0000000002521000-memory.dmp

memory/1064-2-0x0000000002B10000-0x0000000002C73000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat6B1E.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1064-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/2060-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2060-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2060-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2060-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2060-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2060-17-0x000000001B740000-0x000000001B99F000-memory.dmp

memory/2060-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2060-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 03:32

Reported

2024-06-08 03:34

Platform

win11-20240426-en

Max time kernel

90s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.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\kat374C.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 1100 set thread context of 2840 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat374C.tmp

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\kat374C.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat374C.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat374C.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1100 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat374C.tmp
PID 1100 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat374C.tmp
PID 1100 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat374C.tmp
PID 1100 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat374C.tmp
PID 1100 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat374C.tmp
PID 1100 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat374C.tmp
PID 1100 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat374C.tmp
PID 1100 wrote to memory of 2840 N/A C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe C:\Users\Admin\AppData\Local\Temp\kat374C.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe

"C:\Users\Admin\AppData\Local\Temp\a152d819869f43778f0b3aa5884ccf3be87275631e3c534bf2f6731ee5da2000.exe"

C:\Users\Admin\AppData\Local\Temp\kat374C.tmp

C:\Users\Admin\AppData\Local\Temp\kat374C.tmp

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 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 41.249.124.192.in-addr.arpa udp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp

Files

memory/1100-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/1100-1-0x0000000004180000-0x00000000042E3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat374C.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2840-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2840-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1100-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/2840-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2840-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2840-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2840-27-0x0000000026040000-0x000000002629F000-memory.dmp

memory/2840-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2840-43-0x0000000000400000-0x0000000000648000-memory.dmp