vidar | c94b13bf35a94f383b04cb35d6caeb9c8db55c0d8e4e2f83117d2b83637ef59c

General

Target
cf0a473b7b4c73cde1973c8cc84351d4.exe
Size 642KB
Sample210507-hejmgx2vm6
SHA256 c94b13bf35a94f383b04cb35d6caeb9c8db55c0d8e4e2f83117d2b83637ef59c
MD5 cf0a473b7b4c73cde1973c8cc84351d4
SHA1 5a239b36e119a78e2034e3bcdc5921a9731df406
SHA512 fc9085f0f29b6517926ab7a15e108ddb490525295d48d474d16db771eb1748118afa0540e3bb6c9e1daf385314e24c7b5487f4fb8a6243c5222e93e33ecd5d21
MD5 SHA1 SHA512

Score

10^/10

vidar 890 discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

38.7

Botnet

890

C2

https://HAL9THapi.faceit.comramilgame

Attributes

profile_id
890

Signatures

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

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral2/memory/1000-114-0x0000000002660000-0x00000000026F7000-memory.dmp	family_vidar
behavioral2/memory/1000-115-0x0000000000400000-0x0000000000899000-memory.dmp	family_vidar

Downloads MZ/PE file

Loads dropped DLL 2 IoCs

pid	Process
1000	cf0a473b7b4c73cde1973c8cc84351d4.exe
1000	cf0a473b7b4c73cde1973c8cc84351d4.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	cf0a473b7b4c73cde1973c8cc84351d4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	cf0a473b7b4c73cde1973c8cc84351d4.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2144	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1536	taskkill.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1000	cf0a473b7b4c73cde1973c8cc84351d4.exe
1000	cf0a473b7b4c73cde1973c8cc84351d4.exe
1000	cf0a473b7b4c73cde1973c8cc84351d4.exe
1000	cf0a473b7b4c73cde1973c8cc84351d4.exe
1000	cf0a473b7b4c73cde1973c8cc84351d4.exe
1000	cf0a473b7b4c73cde1973c8cc84351d4.exe
1000	cf0a473b7b4c73cde1973c8cc84351d4.exe
1000	cf0a473b7b4c73cde1973c8cc84351d4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1536	taskkill.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1000 wrote to memory of 3116	1000	cf0a473b7b4c73cde1973c8cc84351d4.exe	77
PID 1000 wrote to memory of 3116	1000	cf0a473b7b4c73cde1973c8cc84351d4.exe	77
PID 1000 wrote to memory of 3116	1000	cf0a473b7b4c73cde1973c8cc84351d4.exe	77
PID 3116 wrote to memory of 1536	3116	cmd.exe	79
PID 3116 wrote to memory of 1536	3116	cmd.exe	79
PID 3116 wrote to memory of 1536	3116	cmd.exe	79
PID 3116 wrote to memory of 2144	3116	cmd.exe	80
PID 3116 wrote to memory of 2144	3116	cmd.exe	80
PID 3116 wrote to memory of 2144	3116	cmd.exe	80

C:\Users\Admin\AppData\Local\Temp\cf0a473b7b4c73cde1973c8cc84351d4.exe
"C:\Users\Admin\AppData\Local\Temp\cf0a473b7b4c73cde1973c8cc84351d4.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im cf0a473b7b4c73cde1973c8cc84351d4.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\cf0a473b7b4c73cde1973c8cc84351d4.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3116
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im cf0a473b7b4c73cde1973c8cc84351d4.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1536
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:2144

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/1000-114-0x0000000002660000-0x00000000026F7000-memory.dmp

Download

memory/1000-115-0x0000000000400000-0x0000000000899000-memory.dmp