Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    29-06-2024 02:30

General

  • Target

    4fb42a9f7986b17d59814a0bb5daffb06a3f40736d9d5cf55daf46615bd1ca0f_NeikiAnalytics.exe

  • Size

    1.5MB

  • MD5

    df9bf4df68480a45ae5a38b85c3152e0

  • SHA1

    9cfe0a528a7e327f552f03961071232001cbe44c

  • SHA256

    4fb42a9f7986b17d59814a0bb5daffb06a3f40736d9d5cf55daf46615bd1ca0f

  • SHA512

    82dcf21b771c24e88d6fd6217780eb57948e17c5f3a52b4098579d2356b6e955b1a8f7423c98f40be027111c447db2c61281be4653f234a734757cf3548b1e19

  • SSDEEP

    24576:KK9MHjif9ILK3gBlsXbvLbLUJ70Uj654koEBETT2f1Y+TSXjk:K/jwaLKQl+bH4JbjzzEBETT29YMST

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

  • Detect Vidar Stealer 17 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 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 2 TTPs

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

  • Accesses cryptocurrency files/wallets, 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4fb42a9f7986b17d59814a0bb5daffb06a3f40736d9d5cf55daf46615bd1ca0f_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\4fb42a9f7986b17d59814a0bb5daffb06a3f40736d9d5cf55daf46615bd1ca0f_NeikiAnalytics.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2516
    • C:\Users\Admin\AppData\Local\Temp\kat780.tmp
      C:\Users\Admin\AppData\Local\Temp\kat780.tmp
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2496
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat780.tmp" & rd /s /q "C:\ProgramData\BFCFBFBFBKFI" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1640
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • Delays execution with timeout.exe
          PID:872

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    c490d34a2c8f03d9460dcc0e686863b9

    SHA1

    dc8a5bd51e2ab9d15a6c5da01a1cdbb317666526

    SHA256

    0b1d68c7498c5f7c0d5e4abeaa67d10a4ae12e8d4645eecd29c81e4b42172a7f

    SHA512

    966f43951591a6064fba83731f5d32d96b1c50ea94ecc50af73f505dcd2b3a20aa4fda0815150434a9f2eb29e09752da11de8df773d8c94c6a420365ff129e30

  • C:\Users\Admin\AppData\Local\Temp\Cab1528.tmp

    Filesize

    67KB

    MD5

    2d3dcf90f6c99f47e7593ea250c9e749

    SHA1

    51be82be4a272669983313565b4940d4b1385237

    SHA256

    8714e7be9f9b6de26673d9d09bd4c9f41b1b27ae10b1d56a7ad83abd7430ebd4

    SHA512

    9c11dd7d448ffebe2167acde37be77d42175edacf5aaf6fb31d3bdfe6bb1f63f5fdbc9a0a2125ed9d5ce0529b6b548818c8021532e1ea6b324717cc9bec0aaa5

  • C:\Users\Admin\AppData\Local\Temp\Tar17ED.tmp

    Filesize

    160KB

    MD5

    7186ad693b8ad9444401bd9bcd2217c2

    SHA1

    5c28ca10a650f6026b0df4737078fa4197f3bac1

    SHA256

    9a71fa0cb44aa51412b16a0bf83a275977ba4e807d022f78364338b99b3a3eed

    SHA512

    135be0e6370fd057762c56149526f46bf6a62fb65ef5b3b26ae01fa07b4c4e37188e203bd3812f31e260ec5cccff5924633dd55ab17e9fa106479783c2fb212b

  • \Users\Admin\AppData\Local\Temp\kat780.tmp

    Filesize

    861KB

    MD5

    66064dbdb70a5eb15ebf3bf65aba254b

    SHA1

    0284fd320f99f62aca800fb1251eff4c31ec4ed7

    SHA256

    6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

    SHA512

    b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

  • memory/2496-21-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-152-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-428-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-17-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-15-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-13-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-11-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-9-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-411-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-18-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-135-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-23-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-170-0x0000000025180000-0x00000000253DF000-memory.dmp

    Filesize

    2.4MB

  • memory/2496-178-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-186-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-187-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-211-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-394-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-355-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2496-377-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/2516-2-0x0000000003150000-0x0000000003260000-memory.dmp

    Filesize

    1.1MB

  • memory/2516-22-0x0000000000400000-0x0000000000590000-memory.dmp

    Filesize

    1.6MB

  • memory/2516-0-0x0000000000320000-0x0000000000321000-memory.dmp

    Filesize

    4KB