Malware Analysis Report

2024-11-16 13:43

Sample ID 240607-1rejfaec32
Target 0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6
SHA256 0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6
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

0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6

Threat Level: Known bad

The file 0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6 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

Checks computer location settings

Executes dropped EXE

Reads data files stored by FTP clients

Checks installed software on the system

Accesses cryptocurrency files/wallets, possible credential harvesting

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Delays execution with timeout.exe

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-07 21:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-07 21:52

Reported

2024-06-07 21:55

Platform

win10v2004-20240508-en

Max time kernel

133s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
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Stealc

stealer stealc

Vidar

stealer vidar

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\katF117.tmp N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\katF117.tmp N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4564 set thread context of 1028 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\katF117.tmp

Enumerates physical storage devices

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\katF117.tmp N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4564 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\katF117.tmp
PID 4564 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\katF117.tmp
PID 4564 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\katF117.tmp
PID 4564 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\katF117.tmp
PID 4564 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\katF117.tmp
PID 4564 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\katF117.tmp
PID 4564 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\katF117.tmp
PID 4564 wrote to memory of 1028 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\katF117.tmp
PID 1028 wrote to memory of 3148 N/A C:\Users\Admin\AppData\Local\Temp\katF117.tmp C:\Windows\SysWOW64\cmd.exe
PID 1028 wrote to memory of 3148 N/A C:\Users\Admin\AppData\Local\Temp\katF117.tmp C:\Windows\SysWOW64\cmd.exe
PID 1028 wrote to memory of 3148 N/A C:\Users\Admin\AppData\Local\Temp\katF117.tmp C:\Windows\SysWOW64\cmd.exe
PID 3148 wrote to memory of 392 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3148 wrote to memory of 392 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3148 wrote to memory of 392 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe

"C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe"

C:\Users\Admin\AppData\Local\Temp\katF117.tmp

C:\Users\Admin\AppData\Local\Temp\katF117.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 --field-trial-handle=4036,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4204 /prefetch:8

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

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=3520,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=3532 /prefetch:3

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\katF117.tmp" & rd /s /q "C:\ProgramData\DBFHDBGIEBFI" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 98.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 99.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.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
US 8.8.8.8:53 18.190.202.116.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.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
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 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
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 85.65.42.20.in-addr.arpa udp

Files

memory/4564-0-0x0000000000860000-0x0000000000861000-memory.dmp

memory/4564-1-0x0000000002A30000-0x0000000002B93000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\katF117.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1028-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-10-0x0000000000400000-0x0000000000648000-memory.dmp

memory/4564-9-0x0000000000400000-0x000000000067A000-memory.dmp

memory/1028-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-22-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-23-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-25-0x000000001B7F0000-0x000000001BA4F000-memory.dmp

memory/1028-40-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-41-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-50-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

MD5 d751713988987e9331980363e24189ce
SHA1 97d170e1550eee4afc0af065b78cda302a97674c
SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
SHA512 b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

memory/1028-57-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-65-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-66-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-77-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-78-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1028-79-0x0000000000400000-0x0000000000648000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

MD5 20d4b8fa017a12a108c87f540836e250
SHA1 1ac617fac131262b6d3ce1f52f5907e31d5f6f00
SHA256 6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d
SHA512 507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-07 21:52

Reported

2024-06-07 21:55

Platform

win11-20240426-en

Max time kernel

91s

Max time network

99s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe"

Signatures

Detect Vidar Stealer

stealer
Description Indicator Process Target
N/A N/A N/A N/A
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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\kat43CF.tmp N/A

Reads data files stored by FTP clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Checks installed software on the system

discovery

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3812 set thread context of 1432 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp

Enumerates physical storage devices

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\kat43CF.tmp N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3812 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 3812 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 3812 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 3812 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 3812 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 3812 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 3812 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 3812 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp
PID 1432 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp C:\Windows\SysWOW64\cmd.exe
PID 1432 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp C:\Windows\SysWOW64\cmd.exe
PID 1432 wrote to memory of 3540 N/A C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp C:\Windows\SysWOW64\cmd.exe
PID 3540 wrote to memory of 1004 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3540 wrote to memory of 1004 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3540 wrote to memory of 1004 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe

"C:\Users\Admin\AppData\Local\Temp\0594d4ba4bfaef1ef5f5322dcb51ac0b4de3bb1798d821a1b49ce3e4937c68e6.exe"

C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp

C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp" & rd /s /q "C:\ProgramData\FIDGHIIECGHD" & exit

C:\Windows\SysWOW64\timeout.exe

timeout /t 10

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 8.8.8.8:53 172.210.232.199.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
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 tcp
DE 116.202.190.18:5432 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
US 52.111.229.19:443 tcp

Files

memory/3812-0-0x0000000002620000-0x0000000002621000-memory.dmp

memory/3812-1-0x0000000004250000-0x00000000043B3000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\kat43CF.tmp

MD5 66064dbdb70a5eb15ebf3bf65aba254b
SHA1 0284fd320f99f62aca800fb1251eff4c31ec4ed7
SHA256 6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795
SHA512 b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

memory/1432-8-0x0000000000400000-0x0000000000648000-memory.dmp

memory/3812-10-0x0000000000400000-0x000000000067A000-memory.dmp

memory/1432-9-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1432-4-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1432-15-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1432-16-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1432-18-0x000000001B800000-0x000000001BA5F000-memory.dmp

memory/1432-33-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1432-34-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1432-50-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1432-51-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1432-62-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1432-63-0x0000000000400000-0x0000000000648000-memory.dmp

memory/1432-64-0x0000000000400000-0x0000000000648000-memory.dmp