vidar | 1747353879ce145a264c7e45a54f5a3a80c969185d63ba2a335de49a9c3cd5e1

General

Target

99d5a6017c22db0916659802a541b155.exe
Size

943KB
MD5

99d5a6017c22db0916659802a541b155
SHA1

fcdc010c60bda6f5a11e3b7cb4311de1bda58ac9
SHA256

1747353879ce145a264c7e45a54f5a3a80c969185d63ba2a335de49a9c3cd5e1
SHA512

5e3a1745edf1922cad244f93ab505c650a303b5a72588bb894f76e2b545374bc1943a733b59f92bfdafdb85cd2bf0b0e8d979f04cb8a7b8f65050cfe721d72a8
SSDEEP

24576:zey05nEQXObrQEwMGNL/geFyNcTN+jv75TQn652VBuNyb6:6LZ+bUELGJtF4ch+jvNm0Nyb6

Score

10^/10

vidar 12d6c83ea3cfc666e31df67358e93313 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11.4

Botnet

12d6c83ea3cfc666e31df67358e93313

C2

https://t.me/asg7rd

https://steamcommunity.com/profiles/76561199794498376

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Signatures

Detect Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/668-0-0x0000000000D80000-0x0000000001080000-memory.dmp	family_vidar_v7
behavioral2/memory/668-22-0x0000000000D80000-0x0000000001080000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Vidar family
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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	99d5a6017c22db0916659802a541b155.exe

Loads dropped DLL 1 IoCs

pid	Process
668	99d5a6017c22db0916659802a541b155.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	99d5a6017c22db0916659802a541b155.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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	99d5a6017c22db0916659802a541b155.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	99d5a6017c22db0916659802a541b155.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3188	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
668	99d5a6017c22db0916659802a541b155.exe
668	99d5a6017c22db0916659802a541b155.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 668 wrote to memory of 1700	668	99d5a6017c22db0916659802a541b155.exe	84
PID 668 wrote to memory of 1700	668	99d5a6017c22db0916659802a541b155.exe	84
PID 668 wrote to memory of 1700	668	99d5a6017c22db0916659802a541b155.exe	84
PID 1700 wrote to memory of 3188	1700	cmd.exe	86
PID 1700 wrote to memory of 3188	1700	cmd.exe	86
PID 1700 wrote to memory of 3188	1700	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\99d5a6017c22db0916659802a541b155.exe
"C:\Users\Admin\AppData\Local\Temp\99d5a6017c22db0916659802a541b155.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\99d5a6017c22db0916659802a541b155.exe" & rd /s /q "C:\ProgramData\EHCGIJDHDGDB" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1700
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\chrome.dll

Filesize
676KB

MD5
eda18948a989176f4eebb175ce806255

SHA1
ff22a3d5f5fb705137f233c36622c79eab995897

SHA256
81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4

SHA512
160ed9990c37a4753fc0f5111c94414568654afbedc05308308197df2a99594f2d5d8fe511fd2279543a869ed20248e603d88a0b9b8fb119e8e6131b0c52ff85

Download Submit
memory/668-0-0x0000000000D80000-0x0000000001080000-memory.dmp

Filesize
3.0MB

Download
memory/668-22-0x0000000000D80000-0x0000000001080000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads