Analysis

  • max time kernel
    47s
  • max time network
    54s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-10-2024 16:42

General

  • Target

    b84100c670bb19e92bfb62423048aa43.exe

  • Size

    571KB

  • MD5

    b84100c670bb19e92bfb62423048aa43

  • SHA1

    592f3aef7ad93db6527d8e9d06b2ebbae1a51a79

  • SHA256

    7823532217e8b06b102734023019188833b3e0ae711c3dc6f9cb437d8c48d14b

  • SHA512

    25610d8053a29ef458a690e1435008cbdfd990e2548dbad0db929e539a594c61c144f0025f4b74788324d507af37c66dde302ba513f5279d4f2b37ec5ab8a953

  • SSDEEP

    12288:HcEcpXoWDMr3QZJG6/vrB7JOpf/4Xx8Yl6E0nfhLZ4S:HOXo5Q/vXipYXx3l65ntK

Malware Config

Extracted

Family

vidar

C2

http://lade.petperfectcare.com:80

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Extracted

Family

lumma

Signatures

  • Detect Vidar Stealer 16 IoCs
  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 14 IoCs
  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b84100c670bb19e92bfb62423048aa43.exe
    "C:\Users\Admin\AppData\Local\Temp\b84100c670bb19e92bfb62423048aa43.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:396
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2180
      • C:\ProgramData\JJDBAAEGDB.exe
        "C:\ProgramData\JJDBAAEGDB.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3048
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
          4⤵
            PID:3064
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
            4⤵
              PID:2740
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
              4⤵
              • System Location Discovery: System Language Discovery
              PID:1052
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3048 -s 80
              4⤵
              • Loads dropped DLL
              • Program crash
              PID:2916
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\KJEHCGDBFCBA" & exit
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:772
            • C:\Windows\SysWOW64\timeout.exe
              timeout /t 10
              4⤵
              • System Location Discovery: System Language Discovery
              • Delays execution with timeout.exe
              PID:1000
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 52
          2⤵
          • Program crash
          PID:2524

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • \ProgramData\JJDBAAEGDB.exe

        Filesize

        538KB

        MD5

        8e704acd1b0c26fdcfd0374d57fcb28e

        SHA1

        157b61a24087521693c8aca743d60e4c33cb803d

        SHA256

        6c7818a65f46711fbc89cd7b548829e98be247fab8b2c4766c85b64bc632e797

        SHA512

        b9248880d2b68a7a171f210ce0d9db345c189c411c4946238ed840d0ed993563b413d66a1ed61357bfe699ebc62f9817c4390cffd30067f7a357a5db3bd63351

      • \ProgramData\mozglue.dll

        Filesize

        593KB

        MD5

        c8fd9be83bc728cc04beffafc2907fe9

        SHA1

        95ab9f701e0024cedfbd312bcfe4e726744c4f2e

        SHA256

        ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

        SHA512

        fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

      • \ProgramData\nss3.dll

        Filesize

        2.0MB

        MD5

        1cc453cdf74f31e4d913ff9c10acdde2

        SHA1

        6e85eae544d6e965f15fa5c39700fa7202f3aafe

        SHA256

        ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

        SHA512

        dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

      • memory/396-0-0x0000000000E6D000-0x0000000000E6F000-memory.dmp

        Filesize

        8KB

      • memory/1052-98-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        Filesize

        4KB

      • memory/1052-101-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1052-112-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1052-111-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1052-102-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1052-93-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1052-94-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1052-95-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1052-96-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1052-97-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/1052-99-0x0000000000400000-0x0000000000463000-memory.dmp

        Filesize

        396KB

      • memory/2180-16-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-18-0x000000001B4A0000-0x000000001B6FF000-memory.dmp

        Filesize

        2.4MB

      • memory/2180-6-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-7-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

        Filesize

        4KB

      • memory/2180-63-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-64-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-71-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-72-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-9-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-4-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-33-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-34-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-10-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-5-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-15-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-14-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-13-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-1-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-2-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-110-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/2180-3-0x0000000000400000-0x0000000000676000-memory.dmp

        Filesize

        2.5MB

      • memory/3048-92-0x0000000001455000-0x0000000001456000-memory.dmp

        Filesize

        4KB