Malware Analysis Report

2024-11-16 13:51

Sample ID 240628-e7fksatgpr
Target 4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9
SHA256 4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9
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

4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9

Threat Level: Known bad

The file 4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Detect Vidar Stealer

Stealc

Vidar

Downloads MZ/PE file

Reads user/profile data of web browsers

Executes dropped EXE

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 04:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-28 04:34

Reported

2024-06-28 04:37

Platform

win10v2004-20240611-en

Max time kernel

129s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.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\katF685.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 1256 set thread context of 2260 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\katF685.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\katF685.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\katF685.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1256 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\katF685.tmp
PID 1256 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\katF685.tmp
PID 1256 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\katF685.tmp
PID 1256 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\katF685.tmp
PID 1256 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\katF685.tmp
PID 1256 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\katF685.tmp
PID 1256 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\katF685.tmp
PID 1256 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\katF685.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe

"C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe"

C:\Users\Admin\AppData\Local\Temp\katF685.tmp

C:\Users\Admin\AppData\Local\Temp\katF685.tmp

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4276,i,3833046924978547022,12404847742964713612,262144 --variations-seed-version --mojo-platform-channel-handle=3784 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.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 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
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 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 23.249.124.192.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
DE 195.201.251.214:9000 195.201.251.214 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/1256-0-0x0000000000730000-0x0000000000731000-memory.dmp

memory/1256-1-0x0000000002A60000-0x0000000002B70000-memory.dmp

memory/2260-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katF685.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1256-6-0x0000000000400000-0x000000000058E000-memory.dmp

memory/2260-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2260-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2260-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2260-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2260-25-0x0000000022760000-0x00000000229BF000-memory.dmp

memory/2260-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2260-34-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-28 04:34

Reported

2024-06-28 04:37

Platform

win11-20240419-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat4F58.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 4100 set thread context of 4812 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.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\kat4F58.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4100 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 4100 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 4100 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 4100 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 4100 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 4100 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 4100 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp
PID 4100 wrote to memory of 4812 N/A C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe

"C:\Users\Admin\AppData\Local\Temp\4e72f8677d6c3440ff12738e38dc2c33ef62d229da48e7633f4fae9c5c12bff9.exe"

C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp

C:\Users\Admin\AppData\Local\Temp\kat4F58.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 8.8.8.8:53 203.107.17.2.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 tcp
DE 195.201.251.214:9000 195.201.251.214 tcp

Files

memory/4100-0-0x00000000022F0000-0x00000000022F1000-memory.dmp

memory/4100-1-0x0000000003FD0000-0x00000000040E0000-memory.dmp

memory/4812-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4812-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4812-9-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat4F58.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4100-10-0x0000000000400000-0x000000000058E000-memory.dmp

memory/4812-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4812-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4812-27-0x000000002D180000-0x000000002D3DF000-memory.dmp

memory/4812-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4812-43-0x0000000000400000-0x0000000000648000-memory.dmp