Analysis

  • max time kernel
    269s
  • max time network
    279s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    06-05-2022 13:33

General

  • Target

    Installer.exe

  • Size

    364.9MB

  • MD5

    6f4a55e3149cdaeee406f45159143ad3

  • SHA1

    8b78b75db208bc8830bc6ee4a336c4a6924ad162

  • SHA256

    db3a04ac7c84019a5cea15908ee835b1a76acb289f3657bb8aeddfe780ae9885

  • SHA512

    f5134c9f08493b1f16cba0bb2c77663358908305eb865df8928e425bd4b710416f16b9fc149122bc25184e26e9f605b08121ff701ba56bd56b3c08036ba61d8d

Malware Config

Extracted

Family

vidar

Version

52

Botnet

1281

C2

https://t.me/hollandracing

https://busshi.moe/@ronxik321

Attributes
  • profile_id

    1281

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

    suricata: ET MALWARE W32/Agent.OGR!tr.pws Stealer

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
  • Vidar Stealer 3 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • 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.

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

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Installer.exe
    "C:\Users\Admin\AppData\Local\Temp\Installer.exe"
    1⤵
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    PID:1556
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:1640
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x588
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:560

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Virtualization/Sandbox Evasion

    1
    T1497

    Install Root Certificate

    1
    T1130

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    4
    T1012

    Virtualization/Sandbox Evasion

    1
    T1497

    System Information Discovery

    3
    T1082

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \ProgramData\mozglue.dll
      Filesize

      133KB

      MD5

      8f73c08a9660691143661bf7332c3c27

      SHA1

      37fa65dd737c50fda710fdbde89e51374d0c204a

      SHA256

      3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

      SHA512

      0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

    • \ProgramData\nss3.dll
      Filesize

      1.2MB

      MD5

      bfac4e3c5908856ba17d41edcd455a51

      SHA1

      8eec7e888767aa9e4cca8ff246eb2aacb9170428

      SHA256

      e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

      SHA512

      2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

    • memory/1556-63-0x00000000759D0000-0x0000000075B2C000-memory.dmp
      Filesize

      1.4MB

    • memory/1556-66-0x0000000000F70000-0x00000000016E8000-memory.dmp
      Filesize

      7.5MB

    • memory/1556-58-0x00000000761F1000-0x00000000761F3000-memory.dmp
      Filesize

      8KB

    • memory/1556-59-0x0000000000280000-0x00000000002C0000-memory.dmp
      Filesize

      256KB

    • memory/1556-60-0x0000000000F70000-0x00000000016E8000-memory.dmp
      Filesize

      7.5MB

    • memory/1556-61-0x0000000077190000-0x000000007723C000-memory.dmp
      Filesize

      688KB

    • memory/1556-54-0x0000000000F70000-0x00000000016E8000-memory.dmp
      Filesize

      7.5MB

    • memory/1556-64-0x0000000075280000-0x0000000075410000-memory.dmp
      Filesize

      1.6MB

    • memory/1556-65-0x0000000000F70000-0x00000000016E8000-memory.dmp
      Filesize

      7.5MB

    • memory/1556-57-0x0000000000F70000-0x00000000016E8000-memory.dmp
      Filesize

      7.5MB

    • memory/1556-68-0x0000000000F70000-0x00000000016E8000-memory.dmp
      Filesize

      7.5MB

    • memory/1556-67-0x0000000000F70000-0x00000000016E8000-memory.dmp
      Filesize

      7.5MB

    • memory/1556-69-0x0000000077B50000-0x0000000077CD0000-memory.dmp
      Filesize

      1.5MB

    • memory/1556-70-0x0000000060900000-0x0000000060992000-memory.dmp
      Filesize

      584KB

    • memory/1556-56-0x0000000000F70000-0x00000000016E8000-memory.dmp
      Filesize

      7.5MB

    • memory/1556-55-0x0000000000F70000-0x00000000016E8000-memory.dmp
      Filesize

      7.5MB

    • memory/1640-91-0x000007FEFC1F1000-0x000007FEFC1F3000-memory.dmp
      Filesize

      8KB