vidar | 1b9d19121084397c2e419fc9d37fa9ed7be2b7f772f3be94e83c20642b178d0a

General

Target
3127446f32198dcc58ed4f261e02e7ca.exe
Size 600KB
Sample210421-x43441ltas
SHA256 1b9d19121084397c2e419fc9d37fa9ed7be2b7f772f3be94e83c20642b178d0a
MD5 3127446f32198dcc58ed4f261e02e7ca
SHA1 ddc8a7bd64edf882fc372d0ba7f2b849953951b0
SHA512 49f4f339fffc11647a4e91a7690e4ea0de76f4e1a0b078f27c8fb01c176feb4f92507a5fa0458981bc0e8edf1ae91acd46fff3ea2d928b6cc18f7e081c76cb31
MD5 SHA1 SHA512

Score

10^/10

vidar discovery spyware stealer

Malware Config

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
784	3127446f32198dcc58ed4f261e02e7ca.exe
784	3127446f32198dcc58ed4f261e02e7ca.exe

Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
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	3127446f32198dcc58ed4f261e02e7ca.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3127446f32198dcc58ed4f261e02e7ca.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2712	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3856	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
784	3127446f32198dcc58ed4f261e02e7ca.exe
784	3127446f32198dcc58ed4f261e02e7ca.exe
784	3127446f32198dcc58ed4f261e02e7ca.exe
784	3127446f32198dcc58ed4f261e02e7ca.exe
784	3127446f32198dcc58ed4f261e02e7ca.exe
784	3127446f32198dcc58ed4f261e02e7ca.exe
784	3127446f32198dcc58ed4f261e02e7ca.exe
784	3127446f32198dcc58ed4f261e02e7ca.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3856	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 784 wrote to memory of 3024	784	3127446f32198dcc58ed4f261e02e7ca.exe	78
PID 784 wrote to memory of 3024	784	3127446f32198dcc58ed4f261e02e7ca.exe	78
PID 784 wrote to memory of 3024	784	3127446f32198dcc58ed4f261e02e7ca.exe	78
PID 3024 wrote to memory of 3856	3024	cmd.exe	80
PID 3024 wrote to memory of 3856	3024	cmd.exe	80
PID 3024 wrote to memory of 3856	3024	cmd.exe	80
PID 3024 wrote to memory of 2712	3024	cmd.exe	81
PID 3024 wrote to memory of 2712	3024	cmd.exe	81
PID 3024 wrote to memory of 2712	3024	cmd.exe	81

C:\Users\Admin\AppData\Local\Temp\3127446f32198dcc58ed4f261e02e7ca.exe
"C:\Users\Admin\AppData\Local\Temp\3127446f32198dcc58ed4f261e02e7ca.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:784
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im 3127446f32198dcc58ed4f261e02e7ca.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\3127446f32198dcc58ed4f261e02e7ca.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3024
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im 3127446f32198dcc58ed4f261e02e7ca.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3856
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:2712

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

4

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

4

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/784-114-0x0000000000680000-0x0000000000715000-memory.dmp

Download

memory/784-115-0x0000000000400000-0x00000000004C4000-memory.dmp