vidar | 2ac370f6d3f2a5f8008415fb9e0a20b676d08ef337e81722499c96ba47d8a8a1

General

Target
c21c38b41e26d025c1772834ddef86f0.exe
Size 674KB
Sample210507-ynzhyx2aqj
SHA256 2ac370f6d3f2a5f8008415fb9e0a20b676d08ef337e81722499c96ba47d8a8a1
MD5 c21c38b41e26d025c1772834ddef86f0
SHA1 32898d4cef9a5ed56ee3b0974ed4140290f39903
SHA512 c6953e8f182e6549b8954b2faf40864efe0b0affeb7e10d259ca69f7331edc68c73cb2ab4a5d4c054687a7333445328133362f8bae45f5b28526ad94dac4e554
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
2208	c21c38b41e26d025c1772834ddef86f0.exe
2208	c21c38b41e26d025c1772834ddef86f0.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	c21c38b41e26d025c1772834ddef86f0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	c21c38b41e26d025c1772834ddef86f0.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
192	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1172	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2208	c21c38b41e26d025c1772834ddef86f0.exe
2208	c21c38b41e26d025c1772834ddef86f0.exe
2208	c21c38b41e26d025c1772834ddef86f0.exe
2208	c21c38b41e26d025c1772834ddef86f0.exe
2208	c21c38b41e26d025c1772834ddef86f0.exe
2208	c21c38b41e26d025c1772834ddef86f0.exe
2208	c21c38b41e26d025c1772834ddef86f0.exe
2208	c21c38b41e26d025c1772834ddef86f0.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1172	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2120	2208	c21c38b41e26d025c1772834ddef86f0.exe	79
PID 2208 wrote to memory of 2120	2208	c21c38b41e26d025c1772834ddef86f0.exe	79
PID 2208 wrote to memory of 2120	2208	c21c38b41e26d025c1772834ddef86f0.exe	79
PID 2120 wrote to memory of 1172	2120	cmd.exe	81
PID 2120 wrote to memory of 1172	2120	cmd.exe	81
PID 2120 wrote to memory of 1172	2120	cmd.exe	81
PID 2120 wrote to memory of 192	2120	cmd.exe	82
PID 2120 wrote to memory of 192	2120	cmd.exe	82
PID 2120 wrote to memory of 192	2120	cmd.exe	82

C:\Users\Admin\AppData\Local\Temp\c21c38b41e26d025c1772834ddef86f0.exe
"C:\Users\Admin\AppData\Local\Temp\c21c38b41e26d025c1772834ddef86f0.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im c21c38b41e26d025c1772834ddef86f0.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\c21c38b41e26d025c1772834ddef86f0.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2120
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im c21c38b41e26d025c1772834ddef86f0.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1172
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:192

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/2208-114-0x00000000024F0000-0x0000000002587000-memory.dmp

Download

memory/2208-115-0x0000000000400000-0x00000000008A1000-memory.dmp