vidar | d8e57f4c33ba5fc9f984da08a6be1febac3ce5e81b25e7ee3fa26edda758ca41

General

Target
3962092537d806cbed7bae9631f072de.exe
Size 520KB
Sample210429-hp2p3c3dj2
SHA256 d8e57f4c33ba5fc9f984da08a6be1febac3ce5e81b25e7ee3fa26edda758ca41
MD5 3962092537d806cbed7bae9631f072de
SHA1 2ac6d138483f437d9d63a4e64358fdbf78c8a536
SHA512 86b0355ac207ccca55ff4d94560c954987f3ee2a3ba4f58b95ee57495212a8b67d2466ccbdab24c2b668d0103916557c613311c913928dfecdaa61035a827adc
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
744	3962092537d806cbed7bae9631f072de.exe
744	3962092537d806cbed7bae9631f072de.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	3962092537d806cbed7bae9631f072de.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	3962092537d806cbed7bae9631f072de.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3152	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3984	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
744	3962092537d806cbed7bae9631f072de.exe
744	3962092537d806cbed7bae9631f072de.exe
744	3962092537d806cbed7bae9631f072de.exe
744	3962092537d806cbed7bae9631f072de.exe
744	3962092537d806cbed7bae9631f072de.exe
744	3962092537d806cbed7bae9631f072de.exe
744	3962092537d806cbed7bae9631f072de.exe
744	3962092537d806cbed7bae9631f072de.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3984	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 744 wrote to memory of 2792	744	3962092537d806cbed7bae9631f072de.exe	78
PID 744 wrote to memory of 2792	744	3962092537d806cbed7bae9631f072de.exe	78
PID 744 wrote to memory of 2792	744	3962092537d806cbed7bae9631f072de.exe	78
PID 2792 wrote to memory of 3984	2792	cmd.exe	80
PID 2792 wrote to memory of 3984	2792	cmd.exe	80
PID 2792 wrote to memory of 3984	2792	cmd.exe	80
PID 2792 wrote to memory of 3152	2792	cmd.exe	81
PID 2792 wrote to memory of 3152	2792	cmd.exe	81
PID 2792 wrote to memory of 3152	2792	cmd.exe	81

C:\Users\Admin\AppData\Local\Temp\3962092537d806cbed7bae9631f072de.exe
"C:\Users\Admin\AppData\Local\Temp\3962092537d806cbed7bae9631f072de.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:744
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im 3962092537d806cbed7bae9631f072de.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\3962092537d806cbed7bae9631f072de.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2792
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im 3962092537d806cbed7bae9631f072de.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3984
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:3152

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/744-114-0x0000000002240000-0x00000000022D7000-memory.dmp

Download

memory/744-115-0x0000000000400000-0x000000000049F000-memory.dmp