vidar | 5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980

General

Target

5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe
Size

2.2MB
MD5

c6c28e719c1ab67000be15581f6dafff
SHA1

52b01bdb3b1c0c36ec6d191852e967c02fd48a2d
SHA256

5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980
SHA512

b9143e859ba72e8cd50f329248a43e8d3ba74c540906a128223e6aec4d3830aed98fb139bc2b98ae5da7fd5100e543af7ab7d8d5fd55954ef9502cf305ec9ada

Score

10^/10

vidar 869 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

48.6

Botnet

869

C2

https://mastodon.online/@valhalla

https://koyu.space/@valhalla

Attributes

profile_id
869

Signatures

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

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral1/memory/2720-116-0x0000000002A60000-0x0000000002B37000-memory.dmp	family_vidar
behavioral1/memory/2720-117-0x0000000000400000-0x0000000000638000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe
2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe

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
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	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3312	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
3812	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe
2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe
2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe
2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe
2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe
2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe
2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe
2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3812	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 864	2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe	68
PID 2720 wrote to memory of 864	2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe	68
PID 2720 wrote to memory of 864	2720	5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe	68
PID 864 wrote to memory of 3812	864	cmd.exe	70
PID 864 wrote to memory of 3812	864	cmd.exe	70
PID 864 wrote to memory of 3812	864	cmd.exe	70
PID 864 wrote to memory of 3312	864	cmd.exe	72
PID 864 wrote to memory of 3312	864	cmd.exe	72
PID 864 wrote to memory of 3312	864	cmd.exe	72

C:\Users\Admin\AppData\Local\Temp\5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe
"C:\Users\Admin\AppData\Local\Temp\5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im 5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:864
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im 5c7fc960d3e00ab148e991b9be2137a0b0565c1d32f30fe91c3d894647f33980.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3812
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:3312

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

2

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2720-115-0x00000000008D0000-0x00000000008D1000-memory.dmp

Filesize
4KB

Download
memory/2720-117-0x0000000000400000-0x0000000000638000-memory.dmp

Filesize
2.2MB

Download
memory/2720-116-0x0000000002A60000-0x0000000002B37000-memory.dmp

Filesize
860KB

Download

Analysis

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