vidar | 1ffdb510a9e65f03e6eeb01119614ca52fccc88c9cbcbc6edd08ab75dde91f46

Analysis

max time kernel
30s
max time network
33s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
12-09-2024 12:16

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General

Target

build.exe
Size

264KB
MD5

bf9295dc01fc056cb41bc5dd2a5acd87
SHA1

6087d50e1aa8369c238bdc8ac7dbedf35a653a24
SHA256

1ffdb510a9e65f03e6eeb01119614ca52fccc88c9cbcbc6edd08ab75dde91f46
SHA512

07734aaab5d1ba3715ac0153347469304a2341383019afc3a574eae444783edbb49fb06ccc924e929a8e3ef43855ba485910b1c0640f8ec017b7cc60992a5f43
SSDEEP

3072:cf7j9MwiA1/tkkzv7NmVcc18DM79+c9JDpd9nfpxl5xIPq0TWp8Hraqcddwu+:m7pMruqkzzNemDM7/rnBT8lMwu

Score

10^/10

vidar credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

https://t.me/edm0d

https://steamcommunity.com/profiles/

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

Detect Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral1/memory/2184-0-0x0000000000190000-0x00000000003E7000-memory.dmp	family_vidar_v7
behavioral1/memory/2184-7-0x0000000000190000-0x00000000003E7000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629364133-3182087385-364449604-1000\Control Panel\International\Geo\Nation	build.exe

Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	build.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	build.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	build.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3508	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2184	build.exe
2184	build.exe
2184	build.exe
2184	build.exe
2184	build.exe
2184	build.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 1536	2184	build.exe	87
PID 2184 wrote to memory of 1536	2184	build.exe	87
PID 2184 wrote to memory of 1536	2184	build.exe	87
PID 1536 wrote to memory of 3508	1536	cmd.exe	89
PID 1536 wrote to memory of 3508	1536	cmd.exe	89
PID 1536 wrote to memory of 3508	1536	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\build.exe
"C:\Users\Admin\AppData\Local\Temp\build.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\build.exe" & rd /s /q "C:\ProgramData\HDHJEBFBFHJE" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1536
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3508

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2184-0-0x0000000000190000-0x00000000003E7000-memory.dmp

Filesize
2.3MB

Download
memory/2184-7-0x0000000000190000-0x00000000003E7000-memory.dmp

Filesize
2.3MB

Download