vidar | 6b6b6dcf20260d92fbf0fd6cea9d4bdabf29e047af19ad026b58c4aaf448a67e

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 credential_access 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 9 IoCs

stealer

resource	yara_rule
behavioral1/memory/1224-14-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1224-20-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1224-17-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1224-10-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1224-8-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1224-11-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1716-15-0x00000000021E0000-0x00000000041E0000-memory.dmp	family_vidar_v7
behavioral1/memory/1224-23-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/1224-24-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

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 1716 set thread context of 1224	1716	file.exe	33

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1472	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1224	RegAsm.exe
1224	RegAsm.exe
1224	RegAsm.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 1716 wrote to memory of 2500	1716	file.exe	32
PID 1716 wrote to memory of 2500	1716	file.exe	32
PID 1716 wrote to memory of 2500	1716	file.exe	32
PID 1716 wrote to memory of 2500	1716	file.exe	32
PID 1716 wrote to memory of 2500	1716	file.exe	32
PID 1716 wrote to memory of 2500	1716	file.exe	32
PID 1716 wrote to memory of 2500	1716	file.exe	32
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1716 wrote to memory of 1224	1716	file.exe	33
PID 1224 wrote to memory of 2996	1224	RegAsm.exe	36
PID 1224 wrote to memory of 2996	1224	RegAsm.exe	36
PID 1224 wrote to memory of 2996	1224	RegAsm.exe	36
PID 1224 wrote to memory of 2996	1224	RegAsm.exe	36
PID 2996 wrote to memory of 1472	2996	cmd.exe	38
PID 2996 wrote to memory of 1472	2996	cmd.exe	38
PID 2996 wrote to memory of 1472	2996	cmd.exe	38
PID 2996 wrote to memory of 1472	2996	cmd.exe	38

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:1716
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2500
- 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
  - Suspicious use of WriteProcessMemory
  PID:1224
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" & rd /s /q "C:\ProgramData\IIDAAFBGDBKJ" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2996
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1472

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

Replay Monitor

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Downloads

memory/1224-10-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1224-6-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1224-4-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1224-14-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1224-24-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1224-23-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1224-5-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1224-17-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1224-20-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1224-8-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1224-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1224-11-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1716-1-0x0000000000840000-0x000000000088A000-memory.dmp

Filesize
296KB

Download
memory/1716-15-0x00000000021E0000-0x00000000041E0000-memory.dmp

Filesize
32.0MB

Download
memory/1716-18-0x0000000074C60000-0x000000007534E000-memory.dmp

Filesize
6.9MB

Download
memory/1716-0-0x0000000074C6E000-0x0000000074C6F000-memory.dmp

Filesize
4KB

Download