vidar | cdf3cdb21337eca881dba7f718428b3a4b4b5e228f51980ee572e18d8c0e5cf8

Analysis

max time kernel
72s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
03-01-2023 04:37

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General

Target

MEGAsync.exe
Size

325KB
MD5

9ed2d2cb3bb01f7f7183a1ec69ead315
SHA1

cf139a943b728130022a7a4a3f527a529588ed86
SHA256

cdf3cdb21337eca881dba7f718428b3a4b4b5e228f51980ee572e18d8c0e5cf8
SHA512

236bec7125c066af77f07cd75207afccdde90fc9a261bc8dfa4951dc67d5badf353e870756c09d7c59f2e615fd65f504c1a7b1d7d9c11cb6982709d920712d41
SSDEEP

6144:lZ4LjeUNqTBT6DnJSqEmZ8wi9BtpHZtJy4g26nC:lZ43eUNqQJdEmZSlXJy4g26n

Score

10^/10

vidar 14 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

1.8

Botnet

https://t.me/year2023start

https://steamcommunity.com/profiles/76561199467421923

Attributes

profile_id
14

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Loads dropped DLL 2 IoCs

Processes:

MEGAsync.exe

pid process

2548 MEGAsync.exe
2548 MEGAsync.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
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4128 2548 WerFault.exe MEGAsync.exe

pid	process
2548	MEGAsync.exe
2548	MEGAsync.exe

pid	pid_target	process	target process
4128	2548	WerFault.exe	MEGAsync.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

Processes:

MEGAsync.exe

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MEGAsync.exe

pid process

2548 MEGAsync.exe
2548 MEGAsync.exe

pid	process
2548	MEGAsync.exe
2548	MEGAsync.exe

C:\Users\Admin\AppData\Local\Temp\MEGAsync.exe
"C:\Users\Admin\AppData\Local\Temp\MEGAsync.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:2548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2548 -s 1852
2⤵
- Program crash
PID:4128

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 2548 -ip 2548
1⤵
PID:920

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
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/2548-133-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2548-134-0x00000000020A0000-0x00000000020EC000-memory.dmp

Filesize
304KB

Download
memory/2548-135-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2548-136-0x0000000050B30000-0x0000000050BC2000-memory.dmp

Filesize
584KB

Download
memory/2548-157-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2548-158-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download
memory/2548-159-0x0000000000400000-0x000000000046F000-memory.dmp

Filesize
444KB

Download