vidar | abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5

General

Target

abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe
Size

283KB
MD5

8c4d2ee7feb092bad21213e862b47bba
SHA1

9684ace226b4f521053c53a9ca1106b6a767bebb
SHA256

abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5
SHA512

ce192613090bb3d7525db3c961fe1efe46912a796b9c488abef304fec52318081bfec2a0e64177fcd2ce712986689c15ed5042c5769291a264d2f5baae77e53b
SSDEEP

6144:IxkE0dfDR38ls2W6H4k2mBrlaKXIGYOx8NfHfJv8ze77cNEO:UkPfDR38yuHLhc7NfHfJv8EcNEO

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/5012-3-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/5012-6-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/5012-8-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/5012-24-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/5012-25-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
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 668 set thread context of 5012	668	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe	81

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	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.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
1108	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5012	RegAsm.exe
5012	RegAsm.exe
5012	RegAsm.exe
5012	RegAsm.exe
5012	RegAsm.exe
5012	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 668 wrote to memory of 5012	668	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe	81
PID 668 wrote to memory of 5012	668	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe	81
PID 668 wrote to memory of 5012	668	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe	81
PID 668 wrote to memory of 5012	668	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe	81
PID 668 wrote to memory of 5012	668	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe	81
PID 668 wrote to memory of 5012	668	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe	81
PID 668 wrote to memory of 5012	668	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe	81
PID 668 wrote to memory of 5012	668	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe	81
PID 668 wrote to memory of 5012	668	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe	81
PID 668 wrote to memory of 5012	668	abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe	81
PID 5012 wrote to memory of 3084	5012	RegAsm.exe	84
PID 5012 wrote to memory of 3084	5012	RegAsm.exe	84
PID 5012 wrote to memory of 3084	5012	RegAsm.exe	84
PID 3084 wrote to memory of 1108	3084	cmd.exe	86
PID 3084 wrote to memory of 1108	3084	cmd.exe	86
PID 3084 wrote to memory of 1108	3084	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe
"C:\Users\Admin\AppData\Local\Temp\abca40b38e430b2eca2c726dfbda0179abc347028f401bb3ddc143c293e218b5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:668
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:5012
- - 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\BAFIEGIECGCB" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3084
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1108

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

2

T1012

System Information Discovery

2

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

Replay Monitor

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Downloads

memory/668-0-0x0000000074A0E000-0x0000000074A0F000-memory.dmp

Filesize
4KB

Download
memory/668-1-0x0000000000060000-0x00000000000AA000-memory.dmp

Filesize
296KB

Download
memory/668-11-0x0000000074A00000-0x00000000751B1000-memory.dmp

Filesize
7.7MB

Download
memory/668-23-0x0000000074A00000-0x00000000751B1000-memory.dmp

Filesize
7.7MB

Download
memory/5012-3-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/5012-6-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/5012-8-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/5012-24-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/5012-25-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download

Analysis

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