vidar | 90735ac6772cdd07a3b16eb4dae5df76e6bb6f7f097c18416f507bdeede23c85

Analysis

max time kernel
85s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
19/12/2022, 18:11

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General

Target

torbrowser/torbrowser.exe
Size

694.2MB
MD5

ac3699061b05b673b7cbfc7ac2445fb2
SHA1

b6fafff988d361f2d25c873763c6e256224e7014
SHA256

320366ee8ce3567531042c22aad8b29bc6fb29a91ce091c627faa3b8395ec533
SHA512

9357aec09cc275c4c24dc0949845984d65914122635e0695e5c8d69a782fe9530cc48a93bc2850af69c16f6cd3ec1cc87f49743a639dc54d85fdaa212a652358
SSDEEP

12288:0ZqM+DLDfcPSlUWFmFsZDTepju/5bHCZjtio:0ZGDLjg1xuZDTR5bHCe

Score

10^/10

vidar 1797 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

56.1

Botnet

1797

https://t.me/dishasta

https://steamcommunity.com/profiles/76561199441933804

Attributes

profile_id
1797

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	torbrowser.exe

Loads dropped DLL 2 IoCs

pid	Process
1568	torbrowser.exe
1568	torbrowser.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
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

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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
5108	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1568	torbrowser.exe
1568	torbrowser.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1568 wrote to memory of 2836	1568	torbrowser.exe	87
PID 1568 wrote to memory of 2836	1568	torbrowser.exe	87
PID 1568 wrote to memory of 2836	1568	torbrowser.exe	87
PID 2836 wrote to memory of 5108	2836	cmd.exe	89
PID 2836 wrote to memory of 5108	2836	cmd.exe	89
PID 2836 wrote to memory of 5108	2836	cmd.exe	89

C:\Users\Admin\AppData\Local\Temp\torbrowser\torbrowser.exe
"C:\Users\Admin\AppData\Local\Temp\torbrowser\torbrowser.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1568
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\torbrowser\torbrowser.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2836
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:5108

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\mozglue.dll

Filesize
133KB

MD5
8f73c08a9660691143661bf7332c3c27

SHA1
37fa65dd737c50fda710fdbde89e51374d0c204a

SHA256
3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

SHA512
0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

Download Submit
C:\ProgramData\nss3.dll

Filesize
1.2MB

MD5
bfac4e3c5908856ba17d41edcd455a51

SHA1
8eec7e888767aa9e4cca8ff246eb2aacb9170428

SHA256
e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

SHA512
2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

Download Submit
memory/1568-132-0x0000000002360000-0x00000000023BF000-memory.dmp

Filesize
380KB

Download
memory/1568-133-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/1568-155-0x0000000002360000-0x00000000023BF000-memory.dmp

Filesize
380KB

Download