vidar | da129a056ae920abf92d21a2515c5df006328cc1ba0722b9591eddb0bf253cd9

General

Target
cd699463b57fef262c106818c1a548d2.exe
Size 724KB
Sample210930-dlr61sgbf9
SHA256 da129a056ae920abf92d21a2515c5df006328cc1ba0722b9591eddb0bf253cd9
MD5 cd699463b57fef262c106818c1a548d2
SHA1 1b39afcb52bdf6b07821266f913b3098e0af216d
SHA512 3baa80d761f149f8172c89eb359ec51ca11f7ac7ed3988c89034f1ac068e047e5e654746e47aab5c53272bf9a3f43c66f3c979fd3362f07e3298988a93279185
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/3728-114-0x0000000002240000-0x0000000002314000-memory.dmp	family_vidar
behavioral2/memory/3728-115-0x0000000000400000-0x00000000004D7000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
3728	cd699463b57fef262c106818c1a548d2.exe
3728	cd699463b57fef262c106818c1a548d2.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	cd699463b57fef262c106818c1a548d2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	cd699463b57fef262c106818c1a548d2.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
644	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3700	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3728	cd699463b57fef262c106818c1a548d2.exe
3728	cd699463b57fef262c106818c1a548d2.exe
3728	cd699463b57fef262c106818c1a548d2.exe
3728	cd699463b57fef262c106818c1a548d2.exe
3728	cd699463b57fef262c106818c1a548d2.exe
3728	cd699463b57fef262c106818c1a548d2.exe
3728	cd699463b57fef262c106818c1a548d2.exe
3728	cd699463b57fef262c106818c1a548d2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3700	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3728 wrote to memory of 3772	3728	cd699463b57fef262c106818c1a548d2.exe	68
PID 3728 wrote to memory of 3772	3728	cd699463b57fef262c106818c1a548d2.exe	68
PID 3728 wrote to memory of 3772	3728	cd699463b57fef262c106818c1a548d2.exe	68
PID 3772 wrote to memory of 3700	3772	cmd.exe	70
PID 3772 wrote to memory of 3700	3772	cmd.exe	70
PID 3772 wrote to memory of 3700	3772	cmd.exe	70
PID 3772 wrote to memory of 644	3772	cmd.exe	71
PID 3772 wrote to memory of 644	3772	cmd.exe	71
PID 3772 wrote to memory of 644	3772	cmd.exe	71

C:\Users\Admin\AppData\Local\Temp\cd699463b57fef262c106818c1a548d2.exe
"C:\Users\Admin\AppData\Local\Temp\cd699463b57fef262c106818c1a548d2.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3728
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im cd699463b57fef262c106818c1a548d2.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\cd699463b57fef262c106818c1a548d2.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3772
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im cd699463b57fef262c106818c1a548d2.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3700
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:644

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3728-114-0x0000000002240000-0x0000000002314000-memory.dmp

Download

memory/3728-115-0x0000000000400000-0x00000000004D7000-memory.dmp