Malware Analysis Report

2024-11-16 13:48

Sample ID 240629-g4k27swajq
Target e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f
SHA256 e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f
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

e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f

Threat Level: Known bad

The file e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Vidar

Detect Vidar Stealer

Stealc

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

Suspicious use of WriteProcessMemory

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-29 06:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-29 06:21

Reported

2024-06-29 06:24

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.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
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\katC7E.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 4544 set thread context of 3192 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\katC7E.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\katC7E.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\katC7E.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katC7E.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\katC7E.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\katC7E.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\katC7E.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4544 wrote to memory of 3192 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\katC7E.tmp
PID 4544 wrote to memory of 3192 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\katC7E.tmp
PID 4544 wrote to memory of 3192 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\katC7E.tmp
PID 4544 wrote to memory of 3192 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\katC7E.tmp
PID 4544 wrote to memory of 3192 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\katC7E.tmp
PID 4544 wrote to memory of 3192 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\katC7E.tmp
PID 4544 wrote to memory of 3192 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\katC7E.tmp
PID 4544 wrote to memory of 3192 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\katC7E.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe

"C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe"

C:\Users\Admin\AppData\Local\Temp\katC7E.tmp

C:\Users\Admin\AppData\Local\Temp\katC7E.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 --no-appcompat-clear --mojo-platform-channel-handle=4440 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.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 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 22.249.124.192.in-addr.arpa udp
US 20.231.121.79:80 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 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
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 153.141.79.40.in-addr.arpa udp

Files

memory/4544-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

memory/4544-1-0x0000000004200000-0x0000000004310000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katC7E.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/3192-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3192-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4544-9-0x0000000000400000-0x0000000000635000-memory.dmp

memory/3192-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3192-20-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3192-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3192-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3192-26-0x0000000024C40000-0x0000000024E9F000-memory.dmp

memory/3192-41-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3192-42-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-29 06:21

Reported

2024-06-29 06:24

Platform

win11-20240611-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.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\kat89A2.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 456 set thread context of 716 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\kat89A2.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\kat89A2.tmp N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\kat89A2.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 456 wrote to memory of 716 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\kat89A2.tmp
PID 456 wrote to memory of 716 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\kat89A2.tmp
PID 456 wrote to memory of 716 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\kat89A2.tmp
PID 456 wrote to memory of 716 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\kat89A2.tmp
PID 456 wrote to memory of 716 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\kat89A2.tmp
PID 456 wrote to memory of 716 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\kat89A2.tmp
PID 456 wrote to memory of 716 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\kat89A2.tmp
PID 456 wrote to memory of 716 N/A C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe C:\Users\Admin\AppData\Local\Temp\kat89A2.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe

"C:\Users\Admin\AppData\Local\Temp\e42e0f8882b0ac5ce25e0ab5174f557b7a400f17fdf56d426a81e90b1145057f.exe"

C:\Users\Admin\AppData\Local\Temp\kat89A2.tmp

C:\Users\Admin\AppData\Local\Temp\kat89A2.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 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 214.251.201.195.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.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
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/456-0-0x00000000024D0000-0x00000000024D1000-memory.dmp

memory/456-2-0x00000000041C0000-0x00000000042D0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat89A2.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/716-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/716-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/716-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/456-10-0x0000000000400000-0x0000000000635000-memory.dmp

memory/716-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/716-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/716-27-0x00000000227F0000-0x0000000022A4F000-memory.dmp

memory/716-35-0x0000000000400000-0x0000000000648000-memory.dmp

memory/716-36-0x0000000000400000-0x0000000000648000-memory.dmp