Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-09-2024 01:26

General

  • Target

    64e4050888a60a81125a39c3f7f97734702cc10e3ee2c7b4c1936b47a5f49859.exe

  • Size

    394KB

  • MD5

    62cab8f2668425bc0e1e595528c7b93e

  • SHA1

    46f6ba786149b3e6029e4660470e28f0c9c1c96b

  • SHA256

    64e4050888a60a81125a39c3f7f97734702cc10e3ee2c7b4c1936b47a5f49859

  • SHA512

    eb5649d17f1a54af48b60e259d03ba6fc45ffd6dc37e3972453eabec52ecfe039a42faa4c3c058c0fb53198eadc6dec880533901b051b7de6f6b12ac35d934d0

  • SSDEEP

    6144:Zs7jMI5riiD58kQd+8NUvLIktE4W1qmsDETic6xrGbV:Z9Ih3D5w48q0kt50sDETicwC

Malware Config

Extracted

Family

vidar

Version

11

Botnet

9bf5e431869643a2ac397d2dc0d687fb

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

Signatures

  • Detect Vidar Stealer 13 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 64 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 64 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\64e4050888a60a81125a39c3f7f97734702cc10e3ee2c7b4c1936b47a5f49859.exe
    "C:\Users\Admin\AppData\Local\Temp\64e4050888a60a81125a39c3f7f97734702cc10e3ee2c7b4c1936b47a5f49859.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3632
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Checks computer location settings
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3536
      • C:\ProgramData\GHCAKKEGCA.exe
        "C:\ProgramData\GHCAKKEGCA.exe"
        3⤵
        • Checks computer location settings
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2352
        • C:\Users\Admin\AppData\Local\Temp\Software\IDSM.exe
          "C:\Users\Admin\AppData\Local\Temp\Software\IDSM.exe"
          4⤵
          • Checks computer location settings
          • Drops startup file
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1424
          • C:\Users\Admin\AppData\Local\Temp\Software\MSDNG.exe
            "C:\Users\Admin\AppData\Local\Temp\Software\MSDNG.exe" --checker
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:460
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\KKEHDBAEGIII" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3560
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:4504

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\GHCAKKEGCA.exe

    Filesize

    410KB

    MD5

    85a11b316f726fa24547c289aa61092e

    SHA1

    b2e79c0f56b03f4213bab0b62190666e78940b82

    SHA256

    5864b9c1714f615fa1fa40f60b9e14cfb534ec217e9e4a013fa5959217adabe8

    SHA512

    4adf0998b395e502ee2d2e3ac9e58b64a537cd82a827175866522d642ec406c704665912e228f2f3e04a69d7b716da5801553dc71991f7ceac3c3b7444f13038

  • C:\ProgramData\IECFBKFHCA.exe

    Filesize

    162B

    MD5

    1b7c22a214949975556626d7217e9a39

    SHA1

    d01c97e2944166ed23e47e4a62ff471ab8fa031f

    SHA256

    340c8464c2007ce3f80682e15dfafa4180b641d53c14201b929906b7b0284d87

    SHA512

    ba64847cf1d4157d50abe4f4a1e5c1996fe387c5808e2f758c7fb3213bfefe1f3712d343f0c30a16819749840954654a70611d2250fd0f7b032429db7afd2cc5

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\IDSM_9855fbbbebd14006896ff3e57568000d.lnk

    Filesize

    1KB

    MD5

    484d19c80440fc093f7f96e82689d3b9

    SHA1

    6d85c110eec1d488c2b87e043ce6c74c6ee94b02

    SHA256

    cc93a333760bc103e965b0562425ce5ccc062c18f0efa7aa85fffa8d993fb744

    SHA512

    b707587347c4ff1c9792563d2e1e6b2a183bea8b3b1ab9ed97ca7a0792a0e9fabe4c9b0ef65ba119801cbc0e3c7273fa0b88d00b5bf1109427869ffd712ced63

  • memory/2352-111-0x00000000024A0000-0x00000000024A1000-memory.dmp

    Filesize

    4KB

  • memory/2352-110-0x00000000002C0000-0x000000000036A000-memory.dmp

    Filesize

    680KB

  • memory/2352-109-0x0000000072F9E000-0x0000000072F9F000-memory.dmp

    Filesize

    4KB

  • memory/3536-53-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-85-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-36-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-52-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-3-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-20-0x0000000022790000-0x00000000229EF000-memory.dmp

    Filesize

    2.4MB

  • memory/3536-19-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-77-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-78-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-35-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-86-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-18-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-6-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3536-8-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/3632-11-0x00000000746E0000-0x0000000074E90000-memory.dmp

    Filesize

    7.7MB

  • memory/3632-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

    Filesize

    4KB

  • memory/3632-1-0x0000000000DA0000-0x0000000000E08000-memory.dmp

    Filesize

    416KB