Analysis

  • max time kernel
    122s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    07-10-2024 16:34

General

  • Target

    7f3c2473d1e6.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 4 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7f3c2473d1e6.exe
    "C:\Users\Admin\AppData\Local\Temp\7f3c2473d1e6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2640
    • 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:2728
      • C:\ProgramData\BKJKEBGDHD.exe
        "C:\ProgramData\BKJKEBGDHD.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1080
        • 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:2404
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1080 -s 52
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:2036
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\KECFIDGCBFBA" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:468
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:1856
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 52
      2⤵
      • Program crash
      PID:3032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \ProgramData\BKJKEBGDHD.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/1080-88-0x0000000000385000-0x0000000000386000-memory.dmp

    Filesize

    4KB

  • memory/2404-91-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2404-97-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2404-89-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2404-90-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2404-96-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2404-92-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2404-93-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2404-94-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2404-98-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2404-107-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2404-108-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/2640-0-0x0000000000EFD000-0x0000000000EFF000-memory.dmp

    Filesize

    8KB

  • memory/2728-2-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-10-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-58-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-59-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-60-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-67-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-68-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-28-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-17-0x000000001B0D0000-0x000000001B32F000-memory.dmp

    Filesize

    2.4MB

  • memory/2728-15-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-14-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-29-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-3-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-4-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-13-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-5-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-6-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-7-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB

  • memory/2728-106-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-8-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/2728-1-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB