vidar | 6b6b6dcf20260d92fbf0fd6cea9d4bdabf29e047af19ad026b58c4aaf448a67e

Analysis

max time kernel
134s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
11-09-2024 18:56

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General

Target

file.exe
Size

282KB
MD5

f33b34d0de9bb27980bc99ea468c1181
SHA1

b6ddd17ceed5372febacae3d2c3b95165053fc62
SHA256

6b6b6dcf20260d92fbf0fd6cea9d4bdabf29e047af19ad026b58c4aaf448a67e
SHA512

e6a7083752cafcc5264ee312cc4804b646c5f9788c24905a7df689c1520552b73ebc04ff1af5ef0c0c93c026cc3249738fa194caef75ba2f9af7ea1a3f72545e
SSDEEP

6144:Ms6bXo+ImXuZeO59j7MLE/Ut67PmromTk8uHc+1BagPivpNEO:MnbLBXkZ7Bc67PmkR2g6/EO

Score

10^/10

vidar discovery 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 3 IoCs

stealer

resource	yara_rule
behavioral2/memory/4788-4-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/4788-9-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/4788-7-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4928 set thread context of 4788	4928	file.exe	84

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4788	RegAsm.exe
4788	RegAsm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4928 wrote to memory of 4788	4928	file.exe	84
PID 4928 wrote to memory of 4788	4928	file.exe	84
PID 4928 wrote to memory of 4788	4928	file.exe	84
PID 4928 wrote to memory of 4788	4928	file.exe	84
PID 4928 wrote to memory of 4788	4928	file.exe	84
PID 4928 wrote to memory of 4788	4928	file.exe	84
PID 4928 wrote to memory of 4788	4928	file.exe	84
PID 4928 wrote to memory of 4788	4928	file.exe	84
PID 4928 wrote to memory of 4788	4928	file.exe	84
PID 4928 wrote to memory of 4788	4928	file.exe	84

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:4928
- 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
  - Suspicious behavior: EnumeratesProcesses
  PID:4788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4788-4-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/4788-9-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/4788-7-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/4928-0-0x000000007507E000-0x000000007507F000-memory.dmp

Filesize
4KB

Download
memory/4928-1-0x0000000000E60000-0x0000000000EAA000-memory.dmp

Filesize
296KB

Download
memory/4928-13-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download
memory/4928-14-0x0000000075070000-0x0000000075820000-memory.dmp

Filesize
7.7MB

Download