Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-01-2025 07:19

General

  • Target

    770b223cce43b2043d5953fffb30c512.exe

  • Size

    44KB

  • MD5

    770b223cce43b2043d5953fffb30c512

  • SHA1

    4b535eec398fe92c7b59b05fd8be500c49942cee

  • SHA256

    2f317783ebd3c12517e36d052c09e88291cf335f8f83efdc360aa9dbcb8eb916

  • SHA512

    bdc7f650a8a09cb4099f174c287681c8199785477272f9e9d1762a7f9be2e9aa02975078958ce59eab592f814de6c78efe579886a0e1ef511cb41558a081ce9c

  • SSDEEP

    768:8FtchgNSVwafevGHkiV++I1gqDnJuuAuznQVLNvxu0BvkwIt6BcN4fejq:8FtggN7aeGEk+11Tu9AnQVLNppvk9RNQ

Malware Config

Extracted

Family

vidar

Version

11.4

Botnet

12d6c83ea3cfc666e31df67358e93313

C2

https://t.me/asg7rd

https://steamcommunity.com/profiles/76561199794498376

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Signatures

  • Detect Vidar Stealer 9 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar family
  • Downloads MZ/PE file
  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • 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).

  • 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
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\770b223cce43b2043d5953fffb30c512.exe
    "C:\Users\Admin\AppData\Local\Temp\770b223cce43b2043d5953fffb30c512.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2336
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\5jwg3a2f\5jwg3a2f.cmdline"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2396
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESB174.tmp" "c:\Users\Admin\AppData\Local\Temp\5jwg3a2f\CSCC884E91284A24563B45299CFAF5345D.TMP"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2516
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\RegAsm.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2432
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" & rd /s /q "C:\ProgramData\HCFCFHJDBKJK" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2572
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:2796

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\5jwg3a2f\5jwg3a2f.dll

    Filesize

    8KB

    MD5

    172cc130a151003ea4f81cbf82cb4ad1

    SHA1

    30fe847a295cb61abfa2965cf44006272ae130ec

    SHA256

    5cacd1c3d1f7ed7965dd6ced67679e2b55ac6a6d1248feb65eb9dbee3cc1edb8

    SHA512

    3dd5381964258e8a1b7839746c3d15aa891285fa8ec9a1f4cb6ddd1b030392f3af1115923be5a0d1bc811f6ff6befcbf89e0d433d85e779ebef7922188919b74

  • C:\Users\Admin\AppData\Local\Temp\CabB685.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\RESB174.tmp

    Filesize

    1KB

    MD5

    c135ceb76640e7229443c9747557b265

    SHA1

    4172cbcf03f9755ce8ca4e8e2896bacb23e60b5d

    SHA256

    4d1ec62bb90651fd99eaea6523b29ebc3220acd9a00f59a93295afd54c09b2d7

    SHA512

    467784dc1fd2b12847473e45a947fb73553f62feb29b29c20687df00f500e3a57d4cae2d3568c5547ef6bb629e67ab1c71df5b083a5a91bc4105913bac696cfa

  • C:\Users\Admin\AppData\Local\Temp\TarB6B7.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \??\c:\Users\Admin\AppData\Local\Temp\5jwg3a2f\5jwg3a2f.0.cs

    Filesize

    10KB

    MD5

    b022c6fe4494666c8337a975d175c726

    SHA1

    8197d4a993e7547d19d7b067b4d28ebe48329793

    SHA256

    d02016a307b3e8da1a80c29551d44c17358910816e992bc1b53da006d62dd56a

    SHA512

    df670235e87b1ee957086be88731b458c28629e65e052276dd543be273030986a7e5c67fa83587f68ec06fa0f33b0c3f1f041c2d06073709b340f96c3884f2b9

  • \??\c:\Users\Admin\AppData\Local\Temp\5jwg3a2f\5jwg3a2f.cmdline

    Filesize

    204B

    MD5

    0c630c6e72fb99101fb6b0282c3187be

    SHA1

    f6b420579516bb69f2755ed847d6727196fcb0d7

    SHA256

    3511b1834be647471710d820960d91027f49bc6c34774a5929cca8d524aa30ae

    SHA512

    1e2dee4d835e21a6a59bee3d23e844693bf63b37938879b0017c143592f384d5f6c48e32835d971b527ac7e9b5e3d192c2b79dc0a80c215ecd9450ad3343cde4

  • \??\c:\Users\Admin\AppData\Local\Temp\5jwg3a2f\CSCC884E91284A24563B45299CFAF5345D.TMP

    Filesize

    652B

    MD5

    7890d4552b83fe9582cc4f10a70f37af

    SHA1

    21cd0c5b606a7488512a1f3c8dadfc6de9845a6a

    SHA256

    8ecdd755e85987b24d7601f537bd2fca770864c6804bafc11072ccdc1621f1ed

    SHA512

    f66160df86c4f7aa61e1758a9abe490367c9b2c6d7b033354d6cee9f76eedfb3f097448dafc56cd4da123d09b4ecdf152848331f7d14de6aa3ca3d2aed218daf

  • \ProgramData\chrome.dll

    Filesize

    676KB

    MD5

    eda18948a989176f4eebb175ce806255

    SHA1

    ff22a3d5f5fb705137f233c36622c79eab995897

    SHA256

    81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4

    SHA512

    160ed9990c37a4753fc0f5111c94414568654afbedc05308308197df2a99594f2d5d8fe511fd2279543a869ed20248e603d88a0b9b8fb119e8e6131b0c52ff85

  • memory/2336-33-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2336-0-0x000000007480E000-0x000000007480F000-memory.dmp

    Filesize

    4KB

  • memory/2336-1-0x0000000000260000-0x0000000000272000-memory.dmp

    Filesize

    72KB

  • memory/2336-2-0x0000000074800000-0x0000000074EEE000-memory.dmp

    Filesize

    6.9MB

  • memory/2336-15-0x0000000000470000-0x0000000000478000-memory.dmp

    Filesize

    32KB

  • memory/2432-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2432-28-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2432-24-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2432-23-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2432-22-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2432-17-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2432-32-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2432-26-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2432-19-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2432-82-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2432-83-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2432-21-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2432-87-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB