vidar | cab6c398667a4645b9ac20c9748f194554a76706047f124297a76296e3e7a957

General

Target

njrtdhadawt.exe
Size

943KB
MD5

96e4917ea5d59eca7dd21ad7e7a03d07
SHA1

28c721effb773fdd5cb2146457c10b081a9a4047
SHA256

cab6c398667a4645b9ac20c9748f194554a76706047f124297a76296e3e7a957
SHA512

3414450d1a200ffdcc6e3cb477a0a11049e5e86e8d15ae5b8ed3740a52a0226774333492279092134364460b565a25a7967b987f2304355ecfd5825f86e61687
SSDEEP

24576:ajfMVHefX7eO2FwYPMGNL/geFyNcTN+jv75TQn652VBuNyb2i:oEQreO8wRGJtF4ch+jvNm0Nyb2

Score

10^/10

vidar a21440e9f7223be06be5f5e2f94969c7 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11.3

Botnet

a21440e9f7223be06be5f5e2f94969c7

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/3168-0-0x0000000000C80000-0x0000000000F80000-memory.dmp	family_vidar_v7
behavioral2/memory/3168-22-0x0000000000C80000-0x0000000000F80000-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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	njrtdhadawt.exe

Loads dropped DLL 1 IoCs

pid	Process
3168	njrtdhadawt.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	njrtdhadawt.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	njrtdhadawt.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	njrtdhadawt.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3000	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3168	njrtdhadawt.exe
3168	njrtdhadawt.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3168 wrote to memory of 1676	3168	njrtdhadawt.exe	84
PID 3168 wrote to memory of 1676	3168	njrtdhadawt.exe	84
PID 3168 wrote to memory of 1676	3168	njrtdhadawt.exe	84
PID 1676 wrote to memory of 3000	1676	cmd.exe	86
PID 1676 wrote to memory of 3000	1676	cmd.exe	86
PID 1676 wrote to memory of 3000	1676	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\njrtdhadawt.exe
"C:\Users\Admin\AppData\Local\Temp\njrtdhadawt.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:3168
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\njrtdhadawt.exe" & rd /s /q "C:\ProgramData\EHJKFCGHIDHC" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1676
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3000

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/3168-0-0x0000000000C80000-0x0000000000F80000-memory.dmp

Filesize
3.0MB

Download
memory/3168-22-0x0000000000C80000-0x0000000000F80000-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