Analysis

  • max time kernel
    193s
  • max time network
    301s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    03-10-2024 22:34

General

  • Target

    866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe

  • Size

    559KB

  • MD5

    95f0dcc3e4b88dd0eb7f6a95d6a1c38f

  • SHA1

    8ac0decaec841dc5a689938fcacda0b1bbe96bf9

  • SHA256

    866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da

  • SHA512

    5db08a3d20eab0f34325af1c6aaa6059a5875eededb5bf8d79ceb9835d2e92af7f91b3ee8340f23b872dfc40b6523b40ad90fbf058a299e2c4314bb775969fd8

  • SSDEEP

    12288:eP12qROL6WXuAVQybGwAH/6YsHGEwccznuQ9ii/cbFbu1lHDPZ:sXXauAVQyqz6Y6G4wnuQNURi37Z

Malware Config

Extracted

Family

vidar

Version

11

Botnet

b74ef0d8ce56e494b0d83e1d5be9dbeb

C2

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

Extracted

Family

lumma

C2

https://beearvagueo.site/api

Signatures

  • Detect Vidar Stealer 13 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 2 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 14 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe
    "C:\Users\Admin\AppData\Local\Temp\866ec52c5296cde6aa8dedd875299258c783a9c4a07f98851e6fd7c9367396da.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3900
    • 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:4672
      • C:\ProgramData\IJECAEHJJJ.exe
        "C:\ProgramData\IJECAEHJJJ.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2224
        • 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:4140
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2224 -s 268
          4⤵
          • Program crash
          PID:880
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\KECBFBAEBKJJ" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1476
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:3844
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3900 -s 284
      2⤵
      • Program crash
      PID:3180

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\IJECAEHJJJ.exe

    Filesize

    527KB

    MD5

    fdef61f6fb6fdb0463ec2184cfc22a30

    SHA1

    f29647874a60d21e8d83eeba66b75295f0d56c92

    SHA256

    f1d09670af11ec8c97e55fabf1bf01c1cc32eaf06c2cea54443c6491d50e2e5a

    SHA512

    174cacd51f08595a52838eb01e6f2aea27ab1299b4df13f25d177e0a9e45da01b4e280a089acac8de9566005b430a8b3ef4dd9f18630886f4daa68ffa2e8bed5

  • \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/2224-77-0x00000000003D0000-0x0000000000456000-memory.dmp

    Filesize

    536KB

  • memory/2224-71-0x00000000003D0000-0x0000000000456000-memory.dmp

    Filesize

    536KB

  • memory/3900-0-0x0000000001408000-0x0000000001409000-memory.dmp

    Filesize

    4KB

  • memory/4140-75-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/4140-74-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/4140-72-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/4672-13-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-29-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-53-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-54-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-55-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-62-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-63-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-30-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-14-0x0000000022460000-0x00000000226BF000-memory.dmp

    Filesize

    2.4MB

  • memory/4672-12-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-6-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-3-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-76-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4672-1-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB