Malware Analysis Report

2024-11-16 13:48

Sample ID 240629-h84wjswfkq
Target c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53
SHA256 c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53
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

c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53

Threat Level: Known bad

The file c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53 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

2024-06-29 07:25

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-29 07:25

Reported

2024-06-29 07:27

Platform

win10v2004-20240611-en

Max time kernel

133s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.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\kat4F78.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 2388 set thread context of 2460 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat4F78.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\kat4F78.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat4F78.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2388 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat4F78.tmp
PID 2388 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat4F78.tmp
PID 2388 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat4F78.tmp
PID 2388 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat4F78.tmp
PID 2388 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat4F78.tmp
PID 2388 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat4F78.tmp
PID 2388 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat4F78.tmp
PID 2388 wrote to memory of 2460 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat4F78.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe

"C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe"

C:\Users\Admin\AppData\Local\Temp\kat4F78.tmp

C:\Users\Admin\AppData\Local\Temp\kat4F78.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 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 t.me udp
NL 149.154.167.99:443 t.me tcp
US 8.8.8.8:53 41.249.124.192.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
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
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/2388-0-0x00000000008F0000-0x00000000008F1000-memory.dmp

memory/2388-2-0x0000000002BF0000-0x0000000002D00000-memory.dmp

memory/2460-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4F78.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2460-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2388-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/2460-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2460-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2460-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2460-25-0x0000000022740000-0x000000002299F000-memory.dmp

memory/2460-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2460-34-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-29 07:25

Reported

2024-06-29 07:27

Platform

win11-20240611-en

Max time kernel

90s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.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\kat6283.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 2888 set thread context of 980 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat6283.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\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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2888 wrote to memory of 980 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 2888 wrote to memory of 980 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 2888 wrote to memory of 980 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 2888 wrote to memory of 980 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 2888 wrote to memory of 980 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 2888 wrote to memory of 980 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 2888 wrote to memory of 980 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp
PID 2888 wrote to memory of 980 N/A C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe C:\Users\Admin\AppData\Local\Temp\kat6283.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe

"C:\Users\Admin\AppData\Local\Temp\c929a54f69431941c73e7950a8d0d629ad30599552f5710bad43a2e122069f53.exe"

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

C:\Users\Admin\AppData\Local\Temp\kat6283.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 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 23.249.124.192.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/2888-0-0x0000000000850000-0x0000000000851000-memory.dmp

memory/2888-2-0x0000000004060000-0x0000000004170000-memory.dmp

memory/980-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/980-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2888-10-0x0000000000400000-0x0000000000635000-memory.dmp

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

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/980-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/980-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/980-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/980-27-0x000000002F6A0000-0x000000002F8FF000-memory.dmp

memory/980-35-0x0000000000400000-0x0000000000648000-memory.dmp

memory/980-36-0x0000000000400000-0x0000000000648000-memory.dmp