Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-peccrsbe6t
Target 4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650
SHA256 4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650

Threat Level: Known bad

The file 4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Stealc

Detect Vidar Stealer

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

2024-06-08 12:14

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 12:14

Reported

2024-06-08 12:16

Platform

win11-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.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\kat687E.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 1892 set thread context of 1852 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\kat687E.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\kat687E.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat687E.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat687E.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1892 wrote to memory of 1852 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\kat687E.tmp
PID 1892 wrote to memory of 1852 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\kat687E.tmp
PID 1892 wrote to memory of 1852 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\kat687E.tmp
PID 1892 wrote to memory of 1852 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\kat687E.tmp
PID 1892 wrote to memory of 1852 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\kat687E.tmp
PID 1892 wrote to memory of 1852 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\kat687E.tmp
PID 1892 wrote to memory of 1852 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\kat687E.tmp
PID 1892 wrote to memory of 1852 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\kat687E.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe

"C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe"

C:\Users\Admin\AppData\Local\Temp\kat687E.tmp

C:\Users\Admin\AppData\Local\Temp\kat687E.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 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 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
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/1892-0-0x0000000002450000-0x0000000002451000-memory.dmp

memory/1892-1-0x0000000004090000-0x00000000041F3000-memory.dmp

memory/1852-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat687E.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1852-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1852-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1892-10-0x0000000000400000-0x00000000005EE000-memory.dmp

memory/1852-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1852-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1852-18-0x000000001B890000-0x000000001BAEF000-memory.dmp

memory/1852-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1852-34-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 12:14

Reported

2024-06-08 12:16

Platform

win10v2004-20240226-en

Max time kernel

142s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.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\katE60A.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 648 set thread context of 4972 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\katE60A.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\katE60A.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katE60A.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\katE60A.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 648 wrote to memory of 4972 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\katE60A.tmp
PID 648 wrote to memory of 4972 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\katE60A.tmp
PID 648 wrote to memory of 4972 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\katE60A.tmp
PID 648 wrote to memory of 4972 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\katE60A.tmp
PID 648 wrote to memory of 4972 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\katE60A.tmp
PID 648 wrote to memory of 4972 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\katE60A.tmp
PID 648 wrote to memory of 4972 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\katE60A.tmp
PID 648 wrote to memory of 4972 N/A C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe C:\Users\Admin\AppData\Local\Temp\katE60A.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe

"C:\Users\Admin\AppData\Local\Temp\4b0d32d25a1cd719dbe5228beb1afdf79d26403183c81101b14561e2f7b95650.exe"

C:\Users\Admin\AppData\Local\Temp\katE60A.tmp

C:\Users\Admin\AppData\Local\Temp\katE60A.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=3712 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
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
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.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 95.221.229.192.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
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.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 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
FR 142.250.179.74:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 74.179.250.142.in-addr.arpa udp
US 8.8.8.8:53 59.189.79.40.in-addr.arpa udp

Files

memory/648-0-0x0000000002370000-0x0000000002371000-memory.dmp

memory/648-1-0x0000000004120000-0x0000000004283000-memory.dmp

memory/4972-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katE60A.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/4972-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/648-9-0x0000000000400000-0x00000000005EE000-memory.dmp

memory/4972-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4972-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4972-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4972-16-0x000000001DBE0000-0x000000001DE3F000-memory.dmp

memory/4972-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4972-32-0x0000000000400000-0x0000000000648000-memory.dmp