vidar | b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a

General

Target

b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe
Size

191KB
MD5

b1454ca05bb536ef2c1678d1d33ea062
SHA1

4d77ce27ef5e8232d1fa79bb77af356030a9b466
SHA256

b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a
SHA512

60db78cdcd3f95b86f213723aacab95b00a3b435b329d77c72373ae331f5006339a6c469ba31873370607679ee995cd040892fff60a89c0c656ad121a1281ae5
SSDEEP

3072:pCeWMeoy/sFJWfavXStdd/fVPldIbV/UKPP8C0GNyr85UTk4ugWagKYzEO:rWMedUr3W/Jld1KnGGUPkIyEO

Score

10^/10

vidar 9fecf283c2873768afb8beafb33a85e0 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

10.8

Botnet

9fecf283c2873768afb8beafb33a85e0

C2

https://steamcommunity.com/profiles/76561199761128941

https://t.me/iyigunl

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Signatures

Detect Vidar Stealer 5 IoCs

stealer

resource	yara_rule
behavioral2/memory/3476-7-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/3476-5-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/3476-3-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/3476-26-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/3476-27-0x0000000000400000-0x0000000000641000-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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	RegAsm.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 2608 set thread context of 3476	2608	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	82

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 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	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2384	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3476	RegAsm.exe
3476	RegAsm.exe
3476	RegAsm.exe
3476	RegAsm.exe
3476	RegAsm.exe
3476	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2608 wrote to memory of 3476	2608	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	82
PID 2608 wrote to memory of 3476	2608	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	82
PID 2608 wrote to memory of 3476	2608	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	82
PID 2608 wrote to memory of 3476	2608	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	82
PID 2608 wrote to memory of 3476	2608	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	82
PID 2608 wrote to memory of 3476	2608	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	82
PID 2608 wrote to memory of 3476	2608	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	82
PID 2608 wrote to memory of 3476	2608	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	82
PID 2608 wrote to memory of 3476	2608	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	82
PID 2608 wrote to memory of 3476	2608	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	82
PID 3476 wrote to memory of 3020	3476	RegAsm.exe	90
PID 3476 wrote to memory of 3020	3476	RegAsm.exe	90
PID 3476 wrote to memory of 3020	3476	RegAsm.exe	90
PID 3020 wrote to memory of 2384	3020	cmd.exe	92
PID 3020 wrote to memory of 2384	3020	cmd.exe	92
PID 3020 wrote to memory of 2384	3020	cmd.exe	92

C:\Users\Admin\AppData\Local\Temp\b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe
"C:\Users\Admin\AppData\Local\Temp\b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.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:3476
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" & rd /s /q "C:\ProgramData\JEGHJKFHJJJK" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3020
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2384

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/2608-0-0x000000007467E000-0x000000007467F000-memory.dmp

Filesize
4KB

Download
memory/2608-1-0x0000000000A90000-0x0000000000AC4000-memory.dmp

Filesize
208KB

Download
memory/2608-10-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/2608-12-0x0000000074670000-0x0000000074E20000-memory.dmp

Filesize
7.7MB

Download
memory/3476-7-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/3476-5-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/3476-3-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/3476-26-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/3476-27-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads