vidar | 56453e3c7fe50caac1128195b65d335e3c387c6ba251143f5c3419e6512d3b66

Analysis

max time kernel
81s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
16/09/2024, 13:56

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General

Target

file.exe
Size

283KB
MD5

0d02e72a7fe2f6b2a120782b8a64c0a2
SHA1

0957f0570c7e2f9d38e78664282762fc43964e0d
SHA256

56453e3c7fe50caac1128195b65d335e3c387c6ba251143f5c3419e6512d3b66
SHA512

64bdcf43898f611bae1ad21aef5c26eb1c1434362544e4a734bbfa8b86f24032a5782498ea3dae9e1e144378a27ef47940ae6ea79e5918297e344181a93c5439
SSDEEP

6144:PevsJRmJAvNCf3GIaWAlgO6dEkcsLOTvisCKsBPEO:PgGRmJUSGYAt6dEkcVTvlsBPEO

Score

10^/10

vidar discovery spyware stealer

Malware Config

Extracted

Family

vidar

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/2432-4-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-9-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-7-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-26-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/2432-27-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Reads user/profile data of web browsers 2 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
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 748 set thread context of 2432	748	file.exe	86

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3660	2432	WerFault.exe	86

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	file.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
2432	RegAsm.exe
2432	RegAsm.exe
2432	RegAsm.exe
2432	RegAsm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 2432	748	file.exe	86
PID 748 wrote to memory of 2432	748	file.exe	86
PID 748 wrote to memory of 2432	748	file.exe	86
PID 748 wrote to memory of 2432	748	file.exe	86
PID 748 wrote to memory of 2432	748	file.exe	86
PID 748 wrote to memory of 2432	748	file.exe	86
PID 748 wrote to memory of 2432	748	file.exe	86
PID 748 wrote to memory of 2432	748	file.exe	86
PID 748 wrote to memory of 2432	748	file.exe	86
PID 748 wrote to memory of 2432	748	file.exe	86

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:748
- 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:2432
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2432 -s 2356
    3⤵
    - Program crash
    PID:3660

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2432 -ip 2432
1⤵
PID:3064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/748-0-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

Filesize
4KB

Download
memory/748-1-0x0000000000A50000-0x0000000000A9A000-memory.dmp

Filesize
296KB

Download
memory/748-2-0x00000000057D0000-0x0000000005D74000-memory.dmp

Filesize
5.6MB

Download
memory/748-12-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/748-29-0x0000000074B40000-0x00000000752F0000-memory.dmp

Filesize
7.7MB

Download
memory/2432-4-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2432-9-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2432-7-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2432-26-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/2432-27-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download