vidar | 57265e6674b80a1e6292f45a4cf8be1a1b623cb1e5f89b7e07d8b7916e381e30

General

Target
d13092cd4854e3f28d379ce5bfa0238f.exe
Size 636KB
Sample210316-9bhkthf4fe
SHA256 57265e6674b80a1e6292f45a4cf8be1a1b623cb1e5f89b7e07d8b7916e381e30
MD5 d13092cd4854e3f28d379ce5bfa0238f
SHA1 3c9490725e8f6020e208c10d03827e700b6ce913
SHA512 3aa7749433ad7d0639012ece2924b8c31846b29f9795c448d0162972af066c8e1f9da6deb16dd90fa6b0a9ea26293e9e76c4e48300edc1e30401989183e4860c
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
976	cmd.exe

Loads dropped DLL 4 IoCs

pid	Process
1152	d13092cd4854e3f28d379ce5bfa0238f.exe
1152	d13092cd4854e3f28d379ce5bfa0238f.exe
1152	d13092cd4854e3f28d379ce5bfa0238f.exe
1152	d13092cd4854e3f28d379ce5bfa0238f.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	d13092cd4854e3f28d379ce5bfa0238f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	d13092cd4854e3f28d379ce5bfa0238f.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
684	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
556	taskkill.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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	d13092cd4854e3f28d379ce5bfa0238f.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436	d13092cd4854e3f28d379ce5bfa0238f.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1152	d13092cd4854e3f28d379ce5bfa0238f.exe
1152	d13092cd4854e3f28d379ce5bfa0238f.exe
1152	d13092cd4854e3f28d379ce5bfa0238f.exe
1152	d13092cd4854e3f28d379ce5bfa0238f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	556	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 976	1152	d13092cd4854e3f28d379ce5bfa0238f.exe	31
PID 1152 wrote to memory of 976	1152	d13092cd4854e3f28d379ce5bfa0238f.exe	31
PID 1152 wrote to memory of 976	1152	d13092cd4854e3f28d379ce5bfa0238f.exe	31
PID 1152 wrote to memory of 976	1152	d13092cd4854e3f28d379ce5bfa0238f.exe	31
PID 976 wrote to memory of 556	976	cmd.exe	33
PID 976 wrote to memory of 556	976	cmd.exe	33
PID 976 wrote to memory of 556	976	cmd.exe	33
PID 976 wrote to memory of 556	976	cmd.exe	33
PID 976 wrote to memory of 684	976	cmd.exe	35
PID 976 wrote to memory of 684	976	cmd.exe	35
PID 976 wrote to memory of 684	976	cmd.exe	35
PID 976 wrote to memory of 684	976	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\d13092cd4854e3f28d379ce5bfa0238f.exe
"C:\Users\Admin\AppData\Local\Temp\d13092cd4854e3f28d379ce5bfa0238f.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im d13092cd4854e3f28d379ce5bfa0238f.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\d13092cd4854e3f28d379ce5bfa0238f.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:976
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im d13092cd4854e3f28d379ce5bfa0238f.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:556
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:684