Malware Analysis Report

2024-11-16 13:43

Sample ID 240608-gflzlahe4t
Target e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9
SHA256 e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9
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

e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9

Threat Level: Known bad

The file e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9 was found to be: Known bad.

Malicious Activity Summary

stealc vidar discovery spyware stealer

Stealc

Vidar

Detect Vidar Stealer

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 behavior: EnumeratesProcesses

Checks processor information in registry

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-08 05:44

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-08 05:44

Reported

2024-06-08 05:47

Platform

win10v2004-20240226-en

Max time kernel

142s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.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\katFD1D.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 3456 set thread context of 1168 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\katFD1D.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\katFD1D.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3456 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp
PID 3456 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp
PID 3456 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp
PID 3456 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp
PID 3456 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp
PID 3456 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp
PID 3456 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp
PID 3456 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe

"C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe"

C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp

C:\Users\Admin\AppData\Local\Temp\katFD1D.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=1408 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8

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
DE 116.202.190.18:5432 116.202.190.18 tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.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
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
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
DE 116.202.190.18:5432 116.202.190.18 tcp
DE 116.202.190.18:5432 116.202.190.18 tcp
GB 172.217.169.74:443 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 131.109.69.13.in-addr.arpa udp

Files

memory/3456-0-0x0000000002410000-0x0000000002411000-memory.dmp

memory/3456-1-0x00000000041E0000-0x0000000004343000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katFD1D.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1168-7-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1168-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3456-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/1168-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1168-13-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1168-14-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1168-16-0x0000000019310000-0x000000001956F000-memory.dmp

memory/1168-31-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1168-32-0x0000000000400000-0x0000000000648000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-08 05:44

Reported

2024-06-08 05:47

Platform

win11-20240426-en

Max time kernel

90s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.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\kat54C7.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 2492 set thread context of 2596 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\kat54C7.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\kat54C7.tmp N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2492 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp
PID 2492 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp
PID 2492 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp
PID 2492 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp
PID 2492 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp
PID 2492 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp
PID 2492 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp
PID 2492 wrote to memory of 2596 N/A C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp

Processes

C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe

"C:\Users\Admin\AppData\Local\Temp\e2c289ef4f1f01269da21e2a1ae3d4e002361149533c20bc7cb9f9c767aac0c9.exe"

C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp

C:\Users\Admin\AppData\Local\Temp\kat54C7.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 0.205.248.87.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/2492-0-0x0000000002630000-0x0000000002631000-memory.dmp

memory/2492-2-0x00000000041F0000-0x0000000004353000-memory.dmp

memory/2596-4-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat54C7.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/2596-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2492-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/2596-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2596-24-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2596-25-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2596-28-0x0000000026030000-0x000000002628F000-memory.dmp

memory/2596-42-0x0000000000400000-0x0000000000648000-memory.dmp

memory/2596-43-0x0000000000400000-0x0000000000648000-memory.dmp