vidar | 9ee64b8dc1af383e25ca542f9ede7a8b649c8b1477012c39fca179637fec289d

Analysis

max time kernel
135s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
25-03-2023 19:27

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General

Target

file.exe
Size

4.0MB
MD5

c8912fe8e08b4e0947b0c56201485581
SHA1

2699d925e8a1708e86afac0f65d8e4797126fe90
SHA256

9ee64b8dc1af383e25ca542f9ede7a8b649c8b1477012c39fca179637fec289d
SHA512

c6eca8af85ceeec0a0221a067196bb17ed09bb00931371f79d262d53efcff405c38ea93bb9189d791eb3b358c121a9ec4475f754d1ea92045deff2de0426b70f
SSDEEP

98304:wqjAMzqBA3pR8BG0Zu+wExyDfpvo0fc/jc/kA3:w4pzqCCBG05w1DRATct3

Score

10^/10

vidar 20f95c4f85151b21c48a8766fbd2d32d discovery spyware stealer vmprotect

Malware Config

Extracted

Family

vidar

Version

3.1

Botnet

20f95c4f85151b21c48a8766fbd2d32d

https://steamcommunity.com/profiles/76561199472266392

https://t.me/tabootalks

http://135.181.26.183:80

Attributes

profile_id_v2
20f95c4f85151b21c48a8766fbd2d32d
user_agent
Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

file.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation file.exe
Loads dropped DLL 2 IoCs

Processes:

file.exe

pid process

4416 file.exe
4416 file.exe
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
T1081

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	file.exe

pid	process
4416	file.exe
4416	file.exe

VMProtect packed file 1 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
behavioral2/memory/4416-133-0x0000000000E00000-0x000000000143D000-memory.dmp	vmprotect

Accesses 2FA software files, possible credential harvesting 2 TTPs
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

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

Processes:

file.exe

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

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3884 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

file.exe

pid process

4416 file.exe
4416 file.exe

pid	process
3884	timeout.exe

pid	process
4416	file.exe
4416	file.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.execmd.exe

description	pid	process	target process
PID 4416 wrote to memory of 3172	4416	file.exe	cmd.exe
PID 4416 wrote to memory of 3172	4416	file.exe	cmd.exe
PID 4416 wrote to memory of 3172	4416	file.exe	cmd.exe
PID 3172 wrote to memory of 3884	3172	cmd.exe	timeout.exe
PID 3172 wrote to memory of 3884	3172	cmd.exe	timeout.exe
PID 3172 wrote to memory of 3884	3172	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4416

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\file.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3172

C:\Windows\SysWOW64\timeout.exe
timeout /t 6
3⤵
- Delays execution with timeout.exe
PID:3884

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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/4416-133-0x0000000000E00000-0x000000000143D000-memory.dmp

Filesize
6.2MB

Download
memory/4416-145-0x0000000061E00000-0x0000000061EF3000-memory.dmp

Filesize
972KB

Download