vidar | eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a

General

Target

eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe
Size

413KB
MD5

0656946b783a6df8ff57c45846e49de1
SHA1

5e5857484282f4e4d636d6558014859242b6a8f7
SHA256

eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a
SHA512

a409d30407773f4bb8bb087352e835765460fd3557a6570e1159b01988dd1601d15a7472958b8d41509da896ec365b7b61964413d0846763a8faff511458106d
SSDEEP

12288:tUxpOKa8zz8WB4fZLtjEJNThSymzi0hMQwXFqEO:6Jzz8WUZLtjS5hHQi0TwXUt

Score

10^/10

vidar d80be45a1eb6454ca916f92c36ebf67d discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

11

Botnet

d80be45a1eb6454ca916f92c36ebf67d

C2

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/1316-5-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1316-9-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1316-11-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1316-24-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1316-25-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1316-41-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/1316-42-0x0000000000400000-0x0000000000676000-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 4024 set thread context of 1316	4024	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe	74

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	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.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 30 IoCs

pid	Process
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe
1316	RegAsm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4024 wrote to memory of 1316	4024	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe	74
PID 4024 wrote to memory of 1316	4024	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe	74
PID 4024 wrote to memory of 1316	4024	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe	74
PID 4024 wrote to memory of 1316	4024	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe	74
PID 4024 wrote to memory of 1316	4024	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe	74
PID 4024 wrote to memory of 1316	4024	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe	74
PID 4024 wrote to memory of 1316	4024	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe	74
PID 4024 wrote to memory of 1316	4024	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe	74
PID 4024 wrote to memory of 1316	4024	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe	74
PID 4024 wrote to memory of 1316	4024	eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe	74

C:\Users\Admin\AppData\Local\Temp\eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe
"C:\Users\Admin\AppData\Local\Temp\eaec2f04454eb468c1f591be0487daec463582c2a1d839b2644f3df7ac449b7a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4024
- 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:1316

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

Loading Replay Monitor...

Downloads

memory/1316-25-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1316-5-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1316-9-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1316-11-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1316-24-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1316-26-0x00000000227E0000-0x0000000022A3F000-memory.dmp

Filesize
2.4MB

Download
memory/1316-41-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/1316-42-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/4024-1-0x0000000000E60000-0x0000000000EC8000-memory.dmp

Filesize
416KB

Download
memory/4024-2-0x0000000073200000-0x00000000738EE000-memory.dmp

Filesize
6.9MB

Download
memory/4024-15-0x0000000073200000-0x00000000738EE000-memory.dmp

Filesize
6.9MB

Download
memory/4024-14-0x0000000073200000-0x00000000738EE000-memory.dmp

Filesize
6.9MB

Download
memory/4024-0-0x000000007320E000-0x000000007320F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing