vidar | 41915ffe249fb3ca4d56f818f326fc362fbb65da11e1bc46c556cc73a871f5ea

General

Target

vgerw15.exe
Size

283KB
MD5

c4c32e39c7bfcc29bf6c9f470a35c687
SHA1

a15b2cf75d84a72e6c7102f11ab2839e8e15fc06
SHA256

41915ffe249fb3ca4d56f818f326fc362fbb65da11e1bc46c556cc73a871f5ea
SHA512

b9e8c165789e4dc7ac804ce673143c9d5d13c86bf11aca76eae3ded6d3e3aabf3254081934d4a956ad657f51da34f0fc57104c59409c94f57212b6ccca50b574
SSDEEP

6144:U+jx57K2e1hirl2pSiryGwV42xHP72d7ZO3D67/mEO:jjXm24hi6SiuGu42hP729ZOwOEO

Score

10^/10

vidar credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

C2

https://t.me/fneogr

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

Detect Vidar Stealer 5 IoCs

stealer

resource	yara_rule
behavioral2/memory/3764-3-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3764-7-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3764-8-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3764-13-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3764-14-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer 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-1-5-21-2392887640-1187051047-2909758433-1000\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 2516 set thread context of 3764	2516	vgerw15.exe	84

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	vgerw15.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
2672	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3764	RegAsm.exe
3764	RegAsm.exe
3764	RegAsm.exe
3764	RegAsm.exe
3764	RegAsm.exe
3764	RegAsm.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2196	2516	vgerw15.exe	83
PID 2516 wrote to memory of 2196	2516	vgerw15.exe	83
PID 2516 wrote to memory of 2196	2516	vgerw15.exe	83
PID 2516 wrote to memory of 3764	2516	vgerw15.exe	84
PID 2516 wrote to memory of 3764	2516	vgerw15.exe	84
PID 2516 wrote to memory of 3764	2516	vgerw15.exe	84
PID 2516 wrote to memory of 3764	2516	vgerw15.exe	84
PID 2516 wrote to memory of 3764	2516	vgerw15.exe	84
PID 2516 wrote to memory of 3764	2516	vgerw15.exe	84
PID 2516 wrote to memory of 3764	2516	vgerw15.exe	84
PID 2516 wrote to memory of 3764	2516	vgerw15.exe	84
PID 2516 wrote to memory of 3764	2516	vgerw15.exe	84
PID 2516 wrote to memory of 3764	2516	vgerw15.exe	84
PID 3764 wrote to memory of 2096	3764	RegAsm.exe	86
PID 3764 wrote to memory of 2096	3764	RegAsm.exe	86
PID 3764 wrote to memory of 2096	3764	RegAsm.exe	86
PID 2096 wrote to memory of 2672	2096	cmd.exe	88
PID 2096 wrote to memory of 2672	2096	cmd.exe	88
PID 2096 wrote to memory of 2672	2096	cmd.exe	88

C:\Users\Admin\AppData\Local\Temp\vgerw15.exe
"C:\Users\Admin\AppData\Local\Temp\vgerw15.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2196
- 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:3764
- - 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\BAAEHDBFIDAF" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2096
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2672

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/2516-0-0x000000007537E000-0x000000007537F000-memory.dmp

Filesize
4KB

Download
memory/2516-1-0x0000000000B30000-0x0000000000B7A000-memory.dmp

Filesize
296KB

Download
memory/2516-11-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/2516-15-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/3764-3-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3764-7-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3764-8-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3764-13-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3764-14-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads