vidar | e712b1b6ea37890ab7a310f969eb95be24e28bfcc26bb908147a0bc676d4169d

General

Target
b1aa8ead1f756e1bc6bdd1dcf64f070d.exe
Size 734KB
Sample211214-httr2agcgp
SHA256 e712b1b6ea37890ab7a310f969eb95be24e28bfcc26bb908147a0bc676d4169d
MD5 b1aa8ead1f756e1bc6bdd1dcf64f070d
SHA1 182f9d9e6c3c90fa24e9deb81e7fb9f6f17144c0
SHA512 84469deae21948cbe8c881956bf4f612e92c4820f560061352a5a381b9e9323f4a65fd08b615242eb2aaabb2852a399e9de792e2c3ee2cac1731233d2d7e1c4a
MD5 SHA1 SHA512

Score

10^/10

vidar 874 discovery spyware stealer suricata

Malware Config

Extracted

Family

vidar

Version

49.1

Botnet

874

C2

https://noc.social/@sergeev46
https://c.im/@sergeev47

Attributes

profile_id
874

Signatures

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload
suricata

Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral1/memory/1668-58-0x0000000000400000-0x0000000000539000-memory.dmp	family_vidar
behavioral1/memory/1668-57-0x0000000000220000-0x00000000002F9000-memory.dmp	family_vidar

Downloads MZ/PE file

Deletes itself 1 IoCs

pid	Process
1556	cmd.exe

Loads dropped DLL 4 IoCs

pid	Process
1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe
1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe
1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe
1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.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
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	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1212	timeout.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
1056	taskkill.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe
1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe
1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe
1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1056	taskkill.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 1556	1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe	29
PID 1668 wrote to memory of 1556	1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe	29
PID 1668 wrote to memory of 1556	1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe	29
PID 1668 wrote to memory of 1556	1668	b1aa8ead1f756e1bc6bdd1dcf64f070d.exe	29
PID 1556 wrote to memory of 1056	1556	cmd.exe	31
PID 1556 wrote to memory of 1056	1556	cmd.exe	31
PID 1556 wrote to memory of 1056	1556	cmd.exe	31
PID 1556 wrote to memory of 1056	1556	cmd.exe	31
PID 1556 wrote to memory of 1212	1556	cmd.exe	33
PID 1556 wrote to memory of 1212	1556	cmd.exe	33
PID 1556 wrote to memory of 1212	1556	cmd.exe	33
PID 1556 wrote to memory of 1212	1556	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\b1aa8ead1f756e1bc6bdd1dcf64f070d.exe
"C:\Users\Admin\AppData\Local\Temp\b1aa8ead1f756e1bc6bdd1dcf64f070d.exe"
1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im b1aa8ead1f756e1bc6bdd1dcf64f070d.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\b1aa8ead1f756e1bc6bdd1dcf64f070d.exe" & del C:\ProgramData\*.dll & exit
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1556
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im b1aa8ead1f756e1bc6bdd1dcf64f070d.exe /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1056
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    3⤵
    - Delays execution with timeout.exe
    PID:1212

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1668-55-0x000000000072B000-0x00000000007A8000-memory.dmp

Download

memory/1668-57-0x0000000000220000-0x00000000002F9000-memory.dmp

Download

memory/1668-58-0x0000000000400000-0x0000000000539000-memory.dmp

Download

memory/1668-56-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads