vidar | b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf

General

Target

b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.exe
Size

943KB
MD5

6489e80734a30f58db671eb9151d2168
SHA1

92fd0895a2b8aec14f50eea52439af0e014488b6
SHA256

b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf
SHA512

20861f5abddccfa07d5249afdac6171a8d08df837eb9e0b7329d8c14e6eb47f288d7bb8c3f4b2d8b99c555d28ea308c3f35c546c1718ac87e48e74982afc4071
SSDEEP

24576:+jfMVHefX7eO2wgYPMGNL/geFyNcTN+jv75TQn652VBuNyb2i:8EQreOVgRGJtF4ch+jvNm0Nyb2

Score

10^/10

vidar 41f1d4e9dfd92d46e8ae8d6acda187ca credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11.3

Botnet

41f1d4e9dfd92d46e8ae8d6acda187ca

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/4560-0-0x0000000000B10000-0x0000000000E10000-memory.dmp	family_vidar_v7
behavioral2/memory/4560-20-0x0000000000B10000-0x0000000000E10000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.exe

Loads dropped DLL 1 IoCs

pid	Process
4560	b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.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	b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.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	b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3076	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4560	b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.exe
4560	b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4560 wrote to memory of 3520	4560	b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.exe	83
PID 4560 wrote to memory of 3520	4560	b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.exe	83
PID 4560 wrote to memory of 3520	4560	b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.exe	83
PID 3520 wrote to memory of 3076	3520	cmd.exe	85
PID 3520 wrote to memory of 3076	3520	cmd.exe	85
PID 3520 wrote to memory of 3076	3520	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.exe
"C:\Users\Admin\AppData\Local\Temp\b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.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:4560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\b2388c47229aa697c2ce8d0a4b868c3f789238291c8e7d2856e77854d05b4caf.exe" & rd /s /q "C:\ProgramData\CAAAFCAKKKFB" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3520
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3076

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/4560-0-0x0000000000B10000-0x0000000000E10000-memory.dmp

Filesize
3.0MB

Download
memory/4560-20-0x0000000000B10000-0x0000000000E10000-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