Overview

overview

10

Static

static

0a1cadddf9...a5.exe

windows7_x64

10

0a1cadddf9...a5.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    158s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    02-02-2022 18:31

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe

  • Size

    656KB

  • MD5

    3edf49c7068f5359d6f45e25818b3b60

  • SHA1

    c35fb0266c9914f18dd7e0c2d767284585a96ed8

  • SHA256

    0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5

  • SHA512

    6b04c7e1b9f1ebc9a38a4e171b52820a43ddd85c832254ada00cd5b1fbf8587175cdcd24629ea7248f30628b05821fda0cc75e45ef354688372d45a0739af141

Score
10/10
vidar937discoverypersistencespywarestealersuricata

Malware Config

Extracted

Family

vidar

Version

50

Botnet

937

C2

https://mastodon.social/@prophef6

https://noc.social/@prophef5
Attributes
  • profile_id

    937

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

    stealervidar
  • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt)

    suricata
  • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2

    suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (Passwords.txt) M2

    suricata
  • suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2

    suricata: ET MALWARE Suspicious Zipped Filename in Outbound POST Request (passwords.txt) M2

    suricata
  • suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    suricata: ET MALWARE Vidar/Arkei Stealer Client Data Upload

    suricata
  • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer Data Exfil

    suricata
  • suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

    suricata: ET MALWARE Vidar/Arkei/Megumin/Oski Stealer HTTP POST Pattern

    suricata
  • Vidar Stealer 2 IoCs
    stealer
  • Downloads MZ/PE file
  • Sets service image path in registry 2 TTPs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
    spywarestealer
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Kills process with taskkill 1 IoCs
    evasion
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe
    "C:\Users\Admin\AppData\Local\Temp\0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3772
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im 0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe" & del C:\ProgramData\*.dll & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3456
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im 0a1cadddf9a7499907171a2c98e9a4caa02108eb299b67cfcd7e547a1325eca5.exe /f
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3848
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:2616
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1196
  • C:\Windows\System32\WaaSMedicAgent.exe
    C:\Windows\System32\WaaSMedicAgent.exe 110bfc80a01b87136a0d73a2317bfa4c 50D8FqWaHkut9i7c1mwUdA.0.1.0.0.0
    1⤵
    • Modifies data under HKEY_USERS
    PID:388
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:2580

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3772-130-0x0000000000710000-0x0000000000795000-memory.dmp

    Filesize

    532KB

    Download

  • memory/3772-131-0x0000000002200000-0x00000000022A5000-memory.dmp

    Filesize

    660KB

    Download

  • memory/3772-132-0x0000000000400000-0x00000000004CE000-memory.dmp

    Filesize

    824KB

    Download