vidar | 28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918

General

Target

28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe
Size

624KB
MD5

3d8c2fb9d4272ae0a835faa7715132ef
SHA1

b1a01340c98ec2c4654773c1a034897c16fa21c6
SHA256

28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918
SHA512

2a43afb5932c656e413b320f9750e48a37aec873a08998ebe734cc7f36a9fd524bf8bf2c6dd22712b4ed9157d0351557ec9929880e9b9bc50e402f0223a66d15
SSDEEP

12288:G8CFnbfafLdd6BIKSj1Zih0LNCEhM+cqgN/JCWx8icDoIlxUKHTEO:zCRbyDWBGjTikoHw2/dx8iSoIlxUKzt

Score

10^/10

vidar 191375c1805c0d5109ea6297d63371b2 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11.1

Botnet

191375c1805c0d5109ea6297d63371b2

C2

https://steamcommunity.com/profiles/76561199786602107

https://t.me/lpnjoke

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

Detect Vidar Stealer 4 IoCs

stealer

resource	yara_rule
behavioral2/memory/1344-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1344-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1344-14-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1344-13-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

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	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3976 set thread context of 1344	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	91

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4852	3976	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 4 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	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.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	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3960	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1344	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe
1344	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe
1344	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe
1344	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe
1344	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe
1344	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3976 wrote to memory of 224	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	90
PID 3976 wrote to memory of 224	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	90
PID 3976 wrote to memory of 224	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	90
PID 3976 wrote to memory of 1344	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	91
PID 3976 wrote to memory of 1344	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	91
PID 3976 wrote to memory of 1344	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	91
PID 3976 wrote to memory of 1344	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	91
PID 3976 wrote to memory of 1344	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	91
PID 3976 wrote to memory of 1344	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	91
PID 3976 wrote to memory of 1344	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	91
PID 3976 wrote to memory of 1344	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	91
PID 3976 wrote to memory of 1344	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	91
PID 3976 wrote to memory of 1344	3976	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	91
PID 1344 wrote to memory of 316	1344	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	100
PID 1344 wrote to memory of 316	1344	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	100
PID 1344 wrote to memory of 316	1344	28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe	100
PID 316 wrote to memory of 3960	316	cmd.exe	102
PID 316 wrote to memory of 3960	316	cmd.exe	102
PID 316 wrote to memory of 3960	316	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe
"C:\Users\Admin\AppData\Local\Temp\28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3976
- C:\Users\Admin\AppData\Local\Temp\28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe
  "C:\Users\Admin\AppData\Local\Temp\28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe"
  2⤵
  PID:224
- C:\Users\Admin\AppData\Local\Temp\28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe
  "C:\Users\Admin\AppData\Local\Temp\28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1344
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\28b2ac088b804ab3e059a37134602c92f4f87010b650252f61cad73422827918.exe" & rd /s /q "C:\ProgramData\IIEHCFIDHIDG" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:316
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:3960
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3976 -s 260
  2⤵
  - Program crash
  PID:4852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3976 -ip 3976
1⤵
PID:4088

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

memory/1344-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1344-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1344-6-0x0000000000860000-0x00000000008FE000-memory.dmp

Filesize
632KB

Download
memory/1344-14-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1344-13-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1344-15-0x0000000024BC0000-0x0000000024E1F000-memory.dmp

Filesize
2.4MB

Download
memory/3976-0-0x00000000008F6000-0x00000000008F8000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads