vidar | 9be494b1233a38c3d86ae075d3073ff4de88bc3064011554aa7c96d5ef068c04

General

Target

Vidar.exe
Size

1.2MB
MD5

2f79684349eb97b0e072d21a1b462243
SHA1

ed9b9eeafc5535802e498e78611f262055d736af
SHA256

9be494b1233a38c3d86ae075d3073ff4de88bc3064011554aa7c96d5ef068c04
SHA512

4d94ae4633f3bf489d1bc9613fc6028865064ec98f73b5e9e775f08ff55d246daeddce6a4a0a013a9d05e65edc726768c397d0382e5c35352144b5338d6467d3
SSDEEP

24576:9piXI12TyeC5m71MsNon4J0t1TBUV1E1HP9yjy3anIPXD:9pYaeC52KsNgFtxBUvWIaaKz

Score

10^/10

vidar 7c37934964656ffad71319cfd3f70c69 credential_access discovery stealer

Malware Config

Extracted

Family

vidar

Version

11.4

Botnet

7c37934964656ffad71319cfd3f70c69

C2

https://t.me/asg7rd

https://steamcommunity.com/profiles/76561199794498376

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Signatures

Detect Vidar Stealer 6 IoCs

stealer

resource	yara_rule
behavioral2/memory/4308-6-0x0000000000400000-0x0000000000700000-memory.dmp	family_vidar_v7
behavioral2/memory/4308-8-0x0000000000400000-0x0000000000700000-memory.dmp	family_vidar_v7
behavioral2/memory/4308-11-0x0000000000400000-0x0000000000700000-memory.dmp	family_vidar_v7
behavioral2/memory/4308-25-0x0000000000400000-0x0000000000700000-memory.dmp	family_vidar_v7
behavioral2/memory/4308-26-0x0000000000400000-0x0000000000700000-memory.dmp	family_vidar_v7
behavioral2/memory/4308-30-0x0000000000400000-0x0000000000700000-memory.dmp	family_vidar_v7

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

Loads dropped DLL 1 IoCs

pid	Process
4308	Applaunch.exe

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

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2260 set thread context of 4308	2260	Vidar.exe	98

System Location Discovery: System Language Discovery 1 TTPs 3 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	Applaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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	Applaunch.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Applaunch.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3572	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2260	Vidar.exe
2260	Vidar.exe
2260	Vidar.exe
2260	Vidar.exe
4308	Applaunch.exe
4308	Applaunch.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2260	Vidar.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 4828	2260	Vidar.exe	96
PID 2260 wrote to memory of 4828	2260	Vidar.exe	96
PID 2260 wrote to memory of 4828	2260	Vidar.exe	96
PID 2260 wrote to memory of 3924	2260	Vidar.exe	97
PID 2260 wrote to memory of 3924	2260	Vidar.exe	97
PID 2260 wrote to memory of 3924	2260	Vidar.exe	97
PID 2260 wrote to memory of 4308	2260	Vidar.exe	98
PID 2260 wrote to memory of 4308	2260	Vidar.exe	98
PID 2260 wrote to memory of 4308	2260	Vidar.exe	98
PID 2260 wrote to memory of 4308	2260	Vidar.exe	98
PID 2260 wrote to memory of 4308	2260	Vidar.exe	98
PID 2260 wrote to memory of 4308	2260	Vidar.exe	98
PID 2260 wrote to memory of 4308	2260	Vidar.exe	98
PID 2260 wrote to memory of 4308	2260	Vidar.exe	98
PID 2260 wrote to memory of 4308	2260	Vidar.exe	98
PID 2260 wrote to memory of 4308	2260	Vidar.exe	98
PID 4308 wrote to memory of 5104	4308	Applaunch.exe	99
PID 4308 wrote to memory of 5104	4308	Applaunch.exe	99
PID 4308 wrote to memory of 5104	4308	Applaunch.exe	99
PID 5104 wrote to memory of 3572	5104	cmd.exe	101
PID 5104 wrote to memory of 3572	5104	cmd.exe	101
PID 5104 wrote to memory of 3572	5104	cmd.exe	101

C:\Users\Admin\AppData\Local\Temp\Vidar.exe
"C:\Users\Admin\AppData\Local\Temp\Vidar.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Applaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Applaunch.exe"
  2⤵
  PID:4828
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Applaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Applaunch.exe"
  2⤵
  PID:3924
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\Applaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Applaunch.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4308
- - 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\Applaunch.exe" & rd /s /q "C:\ProgramData\CGIEGHJEGHJK" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:5104
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:3572

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

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\chrome.dll

Filesize
676KB

MD5
eda18948a989176f4eebb175ce806255

SHA1
ff22a3d5f5fb705137f233c36622c79eab995897

SHA256
81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4

SHA512
160ed9990c37a4753fc0f5111c94414568654afbedc05308308197df2a99594f2d5d8fe511fd2279543a869ed20248e603d88a0b9b8fb119e8e6131b0c52ff85

Download Submit
memory/2260-1-0x0000000000FD0000-0x0000000001112000-memory.dmp

Filesize
1.3MB

Download
memory/2260-2-0x00007FFD7FAC0000-0x00007FFD80581000-memory.dmp

Filesize
10.8MB

Download
memory/2260-3-0x000000001DFF0000-0x000000001E0F0000-memory.dmp

Filesize
1024KB

Download
memory/2260-4-0x00007FFD7FAC3000-0x00007FFD7FAC5000-memory.dmp

Filesize
8KB

Download
memory/2260-5-0x00007FFD7FAC0000-0x00007FFD80581000-memory.dmp

Filesize
10.8MB

Download
memory/2260-0-0x00007FFD7FAC3000-0x00007FFD7FAC5000-memory.dmp

Filesize
8KB

Download
memory/4308-6-0x0000000000400000-0x0000000000700000-memory.dmp

Filesize
3.0MB

Download
memory/4308-11-0x0000000000400000-0x0000000000700000-memory.dmp

Filesize
3.0MB

Download
memory/4308-25-0x0000000000400000-0x0000000000700000-memory.dmp

Filesize
3.0MB

Download
memory/4308-26-0x0000000000400000-0x0000000000700000-memory.dmp

Filesize
3.0MB

Download
memory/4308-8-0x0000000000400000-0x0000000000700000-memory.dmp

Filesize
3.0MB

Download
memory/4308-30-0x0000000000400000-0x0000000000700000-memory.dmp

Filesize
3.0MB

Download

Analysis

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