vidar | 13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc

General

Target

13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe
Size

404KB
MD5

10e555691e5bd8608d3afde0c81a61e4
SHA1

37480fa81dca9c7fa109820b0b86ed3ec7258b04
SHA256

13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc
SHA512

e4280c7b1c114b5b3dba3caa976604c77e69a782ecbff6cdb4c21653016878f90c8bcebd336dd288721ec38f464cd2a78e1bfe0b886e0bcb8a5fd610836df291
SSDEEP

6144:kyt602OmYh5I7KU9QPrVI5IgQ0jolIMaszHQTh1u1KjjY9tbCDdBNkioEO:kdt7YMOU2hkflq3jHihamE912kioEO

Score

10^/10

vidar 3c2b9e69b31bab816bc6aaf265216d69 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

3c2b9e69b31bab816bc6aaf265216d69

C2

https://t.me/jamsemlg

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

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 7 IoCs

stealer

resource	yara_rule
behavioral2/memory/2824-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2824-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2824-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2824-15-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2824-16-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2824-32-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2824-33-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
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 388 set thread context of 2824	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	85

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 2 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	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2824	RegAsm.exe
2824	RegAsm.exe
2824	RegAsm.exe
2824	RegAsm.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 388 wrote to memory of 1992	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	84
PID 388 wrote to memory of 1992	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	84
PID 388 wrote to memory of 1992	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	84
PID 388 wrote to memory of 2824	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	85
PID 388 wrote to memory of 2824	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	85
PID 388 wrote to memory of 2824	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	85
PID 388 wrote to memory of 2824	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	85
PID 388 wrote to memory of 2824	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	85
PID 388 wrote to memory of 2824	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	85
PID 388 wrote to memory of 2824	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	85
PID 388 wrote to memory of 2824	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	85
PID 388 wrote to memory of 2824	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	85
PID 388 wrote to memory of 2824	388	13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe	85

C:\Users\Admin\AppData\Local\Temp\13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe
"C:\Users\Admin\AppData\Local\Temp\13c42c85bbeaac50ca5cebc9433e1b12c7f2072a833f60c54d59375993af2ecc.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:388
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:1992
- 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
  PID:2824

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

1

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/388-0-0x000000007472E000-0x000000007472F000-memory.dmp

Filesize
4KB

Download
memory/388-1-0x0000000000150000-0x00000000001BA000-memory.dmp

Filesize
424KB

Download
memory/388-11-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/388-34-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/2824-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2824-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2824-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2824-15-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2824-16-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2824-17-0x0000000022390000-0x00000000225EF000-memory.dmp

Filesize
2.4MB

Download
memory/2824-32-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2824-33-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download

Analysis

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