vidar | 4d12d3563fce6e241f9da491a046d2b33734cca9d496f2e22b0fc25429fbec63

General

Target
e22b5d9d77f7cd89930329a37f5d8ad1.exe
Size 577KB
Sample210325-e842tyxz8x
SHA256 4d12d3563fce6e241f9da491a046d2b33734cca9d496f2e22b0fc25429fbec63
MD5 e22b5d9d77f7cd89930329a37f5d8ad1
SHA1 8ebfef4de63e43b708bba12b26a29a7c69a98cb7
SHA512 f0c93d1f90eb29ace97fe0402482ca41dab5a249cf8389f7888948053c30b62a8fa15ebaae88552a182fcaec4970e76f396fd779f4876ae7ead9423c356a346e
MD5 SHA1 SHA512

Score

10^/10

vidar discovery spyware stealer

Malware Config

Signatures

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

Deletes itself 1 IoCs

pid	Process
812	cmd.exe

Loads dropped DLL 4 IoCs

pid	Process
1924	e22b5d9d77f7cd89930329a37f5d8ad1.exe
1924	e22b5d9d77f7cd89930329a37f5d8ad1.exe
1924	e22b5d9d77f7cd89930329a37f5d8ad1.exe
1924	e22b5d9d77f7cd89930329a37f5d8ad1.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	e22b5d9d77f7cd89930329a37f5d8ad1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	e22b5d9d77f7cd89930329a37f5d8ad1.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1172	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
916	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436	e22b5d9d77f7cd89930329a37f5d8ad1.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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	e22b5d9d77f7cd89930329a37f5d8ad1.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1924	e22b5d9d77f7cd89930329a37f5d8ad1.exe
1924	e22b5d9d77f7cd89930329a37f5d8ad1.exe
1924	e22b5d9d77f7cd89930329a37f5d8ad1.exe
1924	e22b5d9d77f7cd89930329a37f5d8ad1.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	916	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 812	1924	e22b5d9d77f7cd89930329a37f5d8ad1.exe	31
PID 1924 wrote to memory of 812	1924	e22b5d9d77f7cd89930329a37f5d8ad1.exe	31
PID 1924 wrote to memory of 812	1924	e22b5d9d77f7cd89930329a37f5d8ad1.exe	31
PID 1924 wrote to memory of 812	1924	e22b5d9d77f7cd89930329a37f5d8ad1.exe	31
PID 812 wrote to memory of 916	812	cmd.exe	33
PID 812 wrote to memory of 916	812	cmd.exe	33
PID 812 wrote to memory of 916	812	cmd.exe	33
PID 812 wrote to memory of 916	812	cmd.exe	33
PID 812 wrote to memory of 1172	812	cmd.exe	35
PID 812 wrote to memory of 1172	812	cmd.exe	35
PID 812 wrote to memory of 1172	812	cmd.exe	35
PID 812 wrote to memory of 1172	812	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\e22b5d9d77f7cd89930329a37f5d8ad1.exe
"C:\Users\Admin\AppData\Local\Temp\e22b5d9d77f7cd89930329a37f5d8ad1.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1924
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im e22b5d9d77f7cd89930329a37f5d8ad1.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\e22b5d9d77f7cd89930329a37f5d8ad1.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:812
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im e22b5d9d77f7cd89930329a37f5d8ad1.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:916
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:1172