Analysis

  • max time kernel
    125s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    14/04/2023, 01:18

General

  • Target
    setup.exe
  • Size 386KB
  • Sample230414-bnx4yagg7v
  • SHA256 1c4fff759380974bfefb163c13bd2c7c68e96076fe1e703c9e6ee167ea74297b
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vidar

Version
  • 3.4

Botnet
  • e749025c61b2caca10aa829a9e1a65a1

C2
  • https://steamcommunity.com/profiles/76561199494593681

  • https://t.me/auftriebs

Attributes
  • profile_id_v2

    e749025c61b2caca10aa829a9e1a65a1

  • user_agent

    Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:105.0) Gecko/20100101 Firefox/105.0

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • 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
  • Checks installed software on the system 1 TTPs

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

  • 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 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\setup.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    PID:1108

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
        • Size 61KB
        • SHA256 95b0a5acc5bf70d3abdfd091d0c9f9063aa4fde65bd34dbf16786082e1992e72
        • MD5 SHA1 SHA512 SSDEEP

        Tar741F.tmp

        • Path C:\Users\Admin\AppData\Local\Temp\Tar741F.tmp
        • Size 161KB
        • SHA256 1919aab2a820642490169bdc4e88bd1189e22f83e7498bf8ebdfb62ec7d843fd
        • MD5 SHA1 SHA512 SSDEEP

        mozglue.dll

        • Path \ProgramData\mozglue.dll
        • Size 593KB
        • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
        • MD5 SHA1 SHA512 SSDEEP

        nss3.dll

        • Path \ProgramData\nss3.dll
        • Size 2.0MB
        • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
        • MD5 SHA1 SHA512 SSDEEP

        memory/1108-58-0x0000000000400000-0x00000000004CF000-memory.dmp

        memory/1108-63-0x0000000000400000-0x00000000004CF000-memory.dmp

        memory/1108-62-0x0000000000400000-0x00000000004CF000-memory.dmp

        memory/1108-55-0x00000000004D0000-0x0000000000527000-memory.dmp

        memory/1108-115-0x0000000000400000-0x00000000004CF000-memory.dmp

        memory/1108-116-0x0000000000400000-0x00000000004CF000-memory.dmp

        memory/1108-117-0x0000000061E00000-0x0000000061EF3000-memory.dmp

        memory/1108-57-0x0000000000400000-0x00000000004CF000-memory.dmp

        memory/1108-56-0x0000000000400000-0x00000000004CF000-memory.dmp

        memory/1108-155-0x0000000000400000-0x00000000004CF000-memory.dmp

        memory/1108-157-0x0000000000400000-0x00000000004CF000-memory.dmp