vidar | 8f65a8cb816ceaf16b353434261c320bfe8cf9907dd0f73e1a8eea42cd5694be

Analysis

max time kernel
90s
max time network
147s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
02/09/2024, 14:46

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

66d4d0780772b_vnew.exe
Size

190KB
MD5

24366096e1851e1ba5f3059095522f63
SHA1

4f3a72cef34d2016e59017200c18ffe31d04302e
SHA256

8f65a8cb816ceaf16b353434261c320bfe8cf9907dd0f73e1a8eea42cd5694be
SHA512

4dd2b7768c6470c9f1c1817f97e4418829aa75afa501506bf45ffc3ef75200f3fb27f0baee028567ebc6fc71572a5d08c1f34acbf731ace8ff7c69932cd93edb
SSDEEP

3072:wU9LYopkuOZVSEkUnJRmw1ukurhp/x/9+k8Nxt9gmpTH27ipj9nyp1YKgrnowKYp:tZYopkuO+ErSnR9+t91bGipj9nyvYVDt

Score

10^/10

vidar 80f8ee81dee2e1cde612ec12e591b2af credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

10.8

Botnet

80f8ee81dee2e1cde612ec12e591b2af

http://147.45.68.138:80

https://steamcommunity.com/profiles/76561199761128941

https://t.me/iyigunl

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Signatures

Detect Vidar Stealer 17 IoCs

stealer

resource	yara_rule
behavioral4/memory/8-3-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-8-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-6-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-21-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-22-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-38-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-39-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-55-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-56-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-80-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-81-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-88-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/8-89-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/3608-135-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/3608-136-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/3608-152-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral4/memory/3608-153-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
4612	EHJKFCGHID.exe
3708	KJKJKFCBKK.exe

Loads dropped DLL 2 IoCs

pid	Process
8	RegAsm.exe
8	RegAsm.exe

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

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

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 3 IoCs

description	pid	Process	procid_target
PID 2156 set thread context of 8	2156	66d4d0780772b_vnew.exe	84
PID 4612 set thread context of 3312	4612	EHJKFCGHID.exe	91
PID 3708 set thread context of 3608	3708	KJKJKFCBKK.exe	96

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1416	3312	WerFault.exe	91

System Location Discovery: System Language Discovery 1 TTPs 8 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	66d4d0780772b_vnew.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EHJKFCGHID.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	KJKJKFCBKK.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1904	timeout.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
8	RegAsm.exe
8	RegAsm.exe
8	RegAsm.exe
8	RegAsm.exe
8	RegAsm.exe
8	RegAsm.exe
8	RegAsm.exe
8	RegAsm.exe
3608	RegAsm.exe
3608	RegAsm.exe
3608	RegAsm.exe
3608	RegAsm.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 3884	2156	66d4d0780772b_vnew.exe	83
PID 2156 wrote to memory of 3884	2156	66d4d0780772b_vnew.exe	83
PID 2156 wrote to memory of 3884	2156	66d4d0780772b_vnew.exe	83
PID 2156 wrote to memory of 8	2156	66d4d0780772b_vnew.exe	84
PID 2156 wrote to memory of 8	2156	66d4d0780772b_vnew.exe	84
PID 2156 wrote to memory of 8	2156	66d4d0780772b_vnew.exe	84
PID 2156 wrote to memory of 8	2156	66d4d0780772b_vnew.exe	84
PID 2156 wrote to memory of 8	2156	66d4d0780772b_vnew.exe	84
PID 2156 wrote to memory of 8	2156	66d4d0780772b_vnew.exe	84
PID 2156 wrote to memory of 8	2156	66d4d0780772b_vnew.exe	84
PID 2156 wrote to memory of 8	2156	66d4d0780772b_vnew.exe	84
PID 2156 wrote to memory of 8	2156	66d4d0780772b_vnew.exe	84
PID 2156 wrote to memory of 8	2156	66d4d0780772b_vnew.exe	84
PID 8 wrote to memory of 4612	8	RegAsm.exe	86
PID 8 wrote to memory of 4612	8	RegAsm.exe	86
PID 8 wrote to memory of 4612	8	RegAsm.exe	86
PID 4612 wrote to memory of 3556	4612	EHJKFCGHID.exe	90
PID 4612 wrote to memory of 3556	4612	EHJKFCGHID.exe	90
PID 4612 wrote to memory of 3556	4612	EHJKFCGHID.exe	90
PID 4612 wrote to memory of 3312	4612	EHJKFCGHID.exe	91
PID 4612 wrote to memory of 3312	4612	EHJKFCGHID.exe	91
PID 4612 wrote to memory of 3312	4612	EHJKFCGHID.exe	91
PID 4612 wrote to memory of 3312	4612	EHJKFCGHID.exe	91
PID 4612 wrote to memory of 3312	4612	EHJKFCGHID.exe	91
PID 4612 wrote to memory of 3312	4612	EHJKFCGHID.exe	91
PID 4612 wrote to memory of 3312	4612	EHJKFCGHID.exe	91
PID 4612 wrote to memory of 3312	4612	EHJKFCGHID.exe	91
PID 4612 wrote to memory of 3312	4612	EHJKFCGHID.exe	91
PID 8 wrote to memory of 3708	8	RegAsm.exe	92
PID 8 wrote to memory of 3708	8	RegAsm.exe	92
PID 8 wrote to memory of 3708	8	RegAsm.exe	92
PID 3708 wrote to memory of 3608	3708	KJKJKFCBKK.exe	96
PID 3708 wrote to memory of 3608	3708	KJKJKFCBKK.exe	96
PID 3708 wrote to memory of 3608	3708	KJKJKFCBKK.exe	96
PID 3708 wrote to memory of 3608	3708	KJKJKFCBKK.exe	96
PID 3708 wrote to memory of 3608	3708	KJKJKFCBKK.exe	96
PID 3708 wrote to memory of 3608	3708	KJKJKFCBKK.exe	96
PID 3708 wrote to memory of 3608	3708	KJKJKFCBKK.exe	96
PID 3708 wrote to memory of 3608	3708	KJKJKFCBKK.exe	96
PID 3708 wrote to memory of 3608	3708	KJKJKFCBKK.exe	96
PID 3708 wrote to memory of 3608	3708	KJKJKFCBKK.exe	96
PID 8 wrote to memory of 3896	8	RegAsm.exe	98
PID 8 wrote to memory of 3896	8	RegAsm.exe	98
PID 8 wrote to memory of 3896	8	RegAsm.exe	98
PID 3896 wrote to memory of 1904	3896	cmd.exe	100
PID 3896 wrote to memory of 1904	3896	cmd.exe	100
PID 3896 wrote to memory of 1904	3896	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\66d4d0780772b_vnew.exe
"C:\Users\Admin\AppData\Local\Temp\66d4d0780772b_vnew.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:3884
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:8
- - C:\ProgramData\EHJKFCGHID.exe
    "C:\ProgramData\EHJKFCGHID.exe"
    3⤵
    - Executes dropped EXE
    - 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"
      4⤵
      PID:3556
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:3312
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3312 -s 1288
        5⤵
        Program crash
        
        PID:1416
- - C:\ProgramData\KJKJKFCBKK.exe
    "C:\ProgramData\KJKJKFCBKK.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3708
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      PID:3608
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\JJECGCBGDBKJ" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3896
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1904

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3312 -ip 3312
1⤵
PID:3564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

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

Loading Replay Monitor...

Downloads

C:\ProgramData\EHJKFCGHID.exe

Filesize
319KB

MD5
1848bfbfb02bed98ca43832f3743dd79

SHA1
70c54098a69e6e216d3a7d84867e778a1da86fb2

SHA256
8c60a45cb4a712a18839f011f85b3b11ba67d4db03b155bd64c5eda20534a309

SHA512
1230e90eeeee00aa67794be71fa0692bb706b2d445a86653cad10d0e328ca7d4301d8e881a6895bdae09ecd77217b1ba785eb01ea451b04571242349635f95dc

Download Submit
C:\ProgramData\GCGHCBKFCFBF\GDHIID

Filesize
160KB

MD5
f310cf1ff562ae14449e0167a3e1fe46

SHA1
85c58afa9049467031c6c2b17f5c12ca73bb2788

SHA256
e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855

SHA512
1196371de08c964268c44103ccaed530bda6a145df98e0f480d8ee5ad58cb6fb33ca4c9195a52181fe864726dcf52e6a7a466d693af0cda43400a3a7ef125fad

Download Submit
C:\ProgramData\KJKJKFCBKK.exe

Filesize
190KB

MD5
24366096e1851e1ba5f3059095522f63

SHA1
4f3a72cef34d2016e59017200c18ffe31d04302e

SHA256
8f65a8cb816ceaf16b353434261c320bfe8cf9907dd0f73e1a8eea42cd5694be

SHA512
4dd2b7768c6470c9f1c1817f97e4418829aa75afa501506bf45ffc3ef75200f3fb27f0baee028567ebc6fc71572a5d08c1f34acbf731ace8ff7c69932cd93edb

Download Submit
C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
memory/8-23-0x00000000221F0000-0x000000002244F000-memory.dmp

Filesize
2.4MB

Download
memory/8-8-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-21-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-22-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-3-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-38-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-39-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-55-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-56-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-6-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-89-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-80-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-81-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/8-88-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2156-11-0x0000000074770000-0x0000000074F21000-memory.dmp

Filesize
7.7MB

Download
memory/2156-12-0x0000000074770000-0x0000000074F21000-memory.dmp

Filesize
7.7MB

Download
memory/2156-1-0x0000000000E40000-0x0000000000E74000-memory.dmp

Filesize
208KB

Download
memory/2156-0-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/3312-106-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3312-112-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3312-109-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3312-134-0x0000000000400000-0x0000000000457000-memory.dmp

Filesize
348KB

Download
memory/3608-135-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/3608-136-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/3608-138-0x000000001FB20000-0x000000001FD7F000-memory.dmp

Filesize
2.4MB

Download
memory/3608-152-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/3608-153-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/4612-111-0x0000000071530000-0x0000000071CE1000-memory.dmp

Filesize
7.7MB

Download
memory/4612-103-0x000000007153E000-0x000000007153F000-memory.dmp

Filesize
4KB

Download
memory/4612-104-0x00000000009D0000-0x0000000000A24000-memory.dmp

Filesize
336KB

Download
memory/4612-154-0x0000000071530000-0x0000000071CE1000-memory.dmp

Filesize
7.7MB

Download