vidar | 1ded793046759d0c4848c5cd03ebc7f4200a113fd09a73453809edf19064a05c

General

Target
82de6228af53e0bcd76c186c6899933e.exe
Size 637KB
Sample210929-dshadsddd9
SHA256 1ded793046759d0c4848c5cd03ebc7f4200a113fd09a73453809edf19064a05c
MD5 82de6228af53e0bcd76c186c6899933e
SHA1 b302a151e58e65ecc578563612601ccf63c1fc7d
SHA512 6cea02eb9b2139728cfa1099740956f68429e2b47832e46d330c3c9ae2b04cbcacecd4003734f5e66d181da9f4b9f6711dbb7be313cae80c1e07b050f374096c
MD5 SHA1 SHA512

Score

10^/10

vidar discovery spyware stealer

Malware Config

Signatures

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

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/664-115-0x0000000000400000-0x00000000004D7000-memory.dmp	family_vidar
behavioral2/memory/664-114-0x0000000002240000-0x0000000002314000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
664	82de6228af53e0bcd76c186c6899933e.exe
664	82de6228af53e0bcd76c186c6899933e.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	82de6228af53e0bcd76c186c6899933e.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	82de6228af53e0bcd76c186c6899933e.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1780	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1428	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
664	82de6228af53e0bcd76c186c6899933e.exe
664	82de6228af53e0bcd76c186c6899933e.exe
664	82de6228af53e0bcd76c186c6899933e.exe
664	82de6228af53e0bcd76c186c6899933e.exe
664	82de6228af53e0bcd76c186c6899933e.exe
664	82de6228af53e0bcd76c186c6899933e.exe
664	82de6228af53e0bcd76c186c6899933e.exe
664	82de6228af53e0bcd76c186c6899933e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1428	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 664 wrote to memory of 1200	664	82de6228af53e0bcd76c186c6899933e.exe	68
PID 664 wrote to memory of 1200	664	82de6228af53e0bcd76c186c6899933e.exe	68
PID 664 wrote to memory of 1200	664	82de6228af53e0bcd76c186c6899933e.exe	68
PID 1200 wrote to memory of 1428	1200	cmd.exe	70
PID 1200 wrote to memory of 1428	1200	cmd.exe	70
PID 1200 wrote to memory of 1428	1200	cmd.exe	70
PID 1200 wrote to memory of 1780	1200	cmd.exe	71
PID 1200 wrote to memory of 1780	1200	cmd.exe	71
PID 1200 wrote to memory of 1780	1200	cmd.exe	71

C:\Users\Admin\AppData\Local\Temp\82de6228af53e0bcd76c186c6899933e.exe
"C:\Users\Admin\AppData\Local\Temp\82de6228af53e0bcd76c186c6899933e.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im 82de6228af53e0bcd76c186c6899933e.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\82de6228af53e0bcd76c186c6899933e.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1200
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im 82de6228af53e0bcd76c186c6899933e.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1428
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:1780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/664-115-0x0000000000400000-0x00000000004D7000-memory.dmp

Download

memory/664-114-0x0000000002240000-0x0000000002314000-memory.dmp