vidar | fcfe4c075c3b67f661de261a2f05ce34d1b9b150c286c67a3da085b006ae7b3c

Analysis

max time kernel
114s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/01/2023, 20:42

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General

Target

file.exe
Size

1.8MB
MD5

a2d6dee0c5e30e702a68ec36788f5504
SHA1

081f4e64d257a91802141c855255a27fb7e58595
SHA256

fcfe4c075c3b67f661de261a2f05ce34d1b9b150c286c67a3da085b006ae7b3c
SHA512

fdfa737494b6083b35cc7a11899dd8971ab39ddd737655be59a299c99dd97d2e1fcb9c93b64669988a9c78c7c87bef864f1efdcfa1deec0e96be2bb7bc911fef
SSDEEP

24576:NrG7BVkWe95VQlgrb9V7Me4j98gXZ0jJBL/:NrG6Ke4VXoB

Score

10^/10

vidar 588 spyware stealer

Malware Config

Extracted

Family

vidar

Version

1.8

Botnet

588

https://t.me/year2023start

https://steamcommunity.com/profiles/76561199467421923

Attributes

profile_id
588

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
3896	InstallUtil.exe
3896	InstallUtil.exe

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3836 set thread context of 3896	3836	file.exe	77

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4288	3896	WerFault.exe	77

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	InstallUtil.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3896	InstallUtil.exe
3896	InstallUtil.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3836 wrote to memory of 3896	3836	file.exe	77
PID 3836 wrote to memory of 3896	3836	file.exe	77
PID 3836 wrote to memory of 3896	3836	file.exe	77
PID 3836 wrote to memory of 3896	3836	file.exe	77
PID 3836 wrote to memory of 3896	3836	file.exe	77
PID 3836 wrote to memory of 3896	3836	file.exe	77
PID 3836 wrote to memory of 3896	3836	file.exe	77
PID 3836 wrote to memory of 3896	3836	file.exe	77
PID 3836 wrote to memory of 3896	3836	file.exe	77
PID 3836 wrote to memory of 3896	3836	file.exe	77

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3836
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - Loads dropped DLL
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:3896
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3896 -s 1524
    3⤵
    - Program crash
    PID:4288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3896 -ip 3896
1⤵
PID:2256

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/3836-132-0x0000028482790000-0x0000028482960000-memory.dmp

Filesize
1.8MB

Download
memory/3836-133-0x00007FF91DE10000-0x00007FF91E8D1000-memory.dmp

Filesize
10.8MB

Download
memory/3836-136-0x00007FF91DE10000-0x00007FF91E8D1000-memory.dmp

Filesize
10.8MB

Download
memory/3896-138-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/3896-137-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/3896-139-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/3896-140-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/3896-141-0x0000000051470000-0x0000000051502000-memory.dmp

Filesize
584KB

Download
memory/3896-134-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download
memory/3896-162-0x0000000000400000-0x0000000000479000-memory.dmp

Filesize
484KB

Download