vidar | bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a

General

Target

bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe
Size

283KB
MD5

570f9923f42d17f4bd778860dafb71f8
SHA1

7bfcbf9992daaa0170183cc1b95cd63f6662e8ae
SHA256

bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a
SHA512

ee2ab17af96c011ccd2d1a57b635990f62b85be32f80948ff3d50e9ce0c7a2cdd7416f815de31bbce3cc3b82d0cd6ce8310d7fa41ff0afe769b5c1b482eb003f
SSDEEP

6144:jRIfH7BVtMCGGLvSd8RWFFmB0fS8jzhlQzYEXnIfcvEO:jR2bztlGGk8RWk4SkXQcE4fUEO

Score

10^/10

vidar discovery spyware stealer

Malware Config

Extracted

Family

vidar

C2

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/3396-4-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3396-9-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3396-7-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3396-24-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/3396-25-0x0000000000400000-0x0000000000657000-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 4612 set thread context of 3396	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	86

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4896	3396	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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.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
3396	RegAsm.exe
3396	RegAsm.exe
3396	RegAsm.exe
3396	RegAsm.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 644	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	83
PID 4612 wrote to memory of 644	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	83
PID 4612 wrote to memory of 644	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	83
PID 4612 wrote to memory of 4436	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	84
PID 4612 wrote to memory of 4436	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	84
PID 4612 wrote to memory of 4436	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	84
PID 4612 wrote to memory of 3544	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	85
PID 4612 wrote to memory of 3544	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	85
PID 4612 wrote to memory of 3544	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	85
PID 4612 wrote to memory of 3396	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	86
PID 4612 wrote to memory of 3396	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	86
PID 4612 wrote to memory of 3396	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	86
PID 4612 wrote to memory of 3396	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	86
PID 4612 wrote to memory of 3396	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	86
PID 4612 wrote to memory of 3396	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	86
PID 4612 wrote to memory of 3396	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	86
PID 4612 wrote to memory of 3396	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	86
PID 4612 wrote to memory of 3396	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	86
PID 4612 wrote to memory of 3396	4612	bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe	86

C:\Users\Admin\AppData\Local\Temp\bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe
"C:\Users\Admin\AppData\Local\Temp\bba545f6548a550f414fde4684ec52fbfa09a4f899ebf9ca94ec7ffc21ca519a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:644
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4436
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:3544
- 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:3396
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3396 -s 2224
    3⤵
    - Program crash
    PID:4896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3396 -ip 3396
1⤵
PID:208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

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/3396-4-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3396-9-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3396-7-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3396-24-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/3396-25-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/4612-0-0x000000007485E000-0x000000007485F000-memory.dmp

Filesize
4KB

Download
memory/4612-1-0x0000000000770000-0x00000000007BA000-memory.dmp

Filesize
296KB

Download
memory/4612-2-0x0000000005630000-0x0000000005BD4000-memory.dmp

Filesize
5.6MB

Download
memory/4612-12-0x0000000074850000-0x0000000075000000-memory.dmp

Filesize
7.7MB

Download
memory/4612-27-0x0000000074850000-0x0000000075000000-memory.dmp

Filesize
7.7MB

Download

Analysis

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