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Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/01/2025, 02:12

General

  • Target

    2f317783ebd3c12517e36d052c09e88291cf335f8f83efdc360aa9dbcb8eb916.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 7 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\2f317783ebd3c12517e36d052c09e88291cf335f8f83efdc360aa9dbcb8eb916.exe
    "C:\Users\Admin\AppData\Local\Temp\2f317783ebd3c12517e36d052c09e88291cf335f8f83efdc360aa9dbcb8eb916.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2104
    • 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\s2dcbayv\s2dcbayv.cmdline"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2536
      • 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\RESD652.tmp" "c:\Users\Admin\AppData\Local\Temp\s2dcbayv\CSCC220BDB39B84D3D99D47DBBF6ADB52.TMP"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2984
    • 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:1492
      • 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\CAAKFIIDGIEH" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2576
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:1784

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CabDBB1.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\RESD652.tmp

    Filesize

    1KB

    MD5

    3042e29af05fbbd3f5214116be870d3d

    SHA1

    fffc3527fd75c62b9805eb89b606cdd1105bd8bd

    SHA256

    7f7467044fc2bb2defdcdf1055d6d89b41af8ed8cdf3ef12bb46ee696bab58df

    SHA512

    d69908fb5c3fbe1d7968d3e8d26167f4c1f36908587307a7b14da3a3113196a9ac10523ccdb86a30db724716c0f997627adc427a86f9dcbe49700492bec55c88

  • C:\Users\Admin\AppData\Local\Temp\TarDBD3.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Local\Temp\s2dcbayv\s2dcbayv.dll

    Filesize

    8KB

    MD5

    0ba6364e05e0aada0646231de4521f8e

    SHA1

    6ae31b4b12a1941b17b6a3d7f043ac711a9c3a90

    SHA256

    3241a4b21f0cbb1dfce5775fabff8b1196b4e76029b9ba4f319cf4cc4a731012

    SHA512

    53f5d74591afa800d1581121b2e83a0144540716ae23b92dfb2ff36001ed81677ea19fe28591528b0fc866c2dfe50f92debe7c1bf8cf2835e52a0404b6f0a15d

  • \??\c:\Users\Admin\AppData\Local\Temp\s2dcbayv\CSCC220BDB39B84D3D99D47DBBF6ADB52.TMP

    Filesize

    652B

    MD5

    d9daccbccff867b63cbc1cf74e220458

    SHA1

    0478f52fab72981dc87a316eac463028414fb483

    SHA256

    27880114f8d73d59c5a202cf280d7c1c796a1289dbb24d4639f7d656648e811f

    SHA512

    842008f5cddcb732327bb1753414859469028dac434e8b024ee45263e7f0f9de55038b54047e9f495f61f880e9ca91f5f60b083dd93bab5f0d40a7d83ccf4df3

  • \??\c:\Users\Admin\AppData\Local\Temp\s2dcbayv\s2dcbayv.0.cs

    Filesize

    10KB

    MD5

    b022c6fe4494666c8337a975d175c726

    SHA1

    8197d4a993e7547d19d7b067b4d28ebe48329793

    SHA256

    d02016a307b3e8da1a80c29551d44c17358910816e992bc1b53da006d62dd56a

    SHA512

    df670235e87b1ee957086be88731b458c28629e65e052276dd543be273030986a7e5c67fa83587f68ec06fa0f33b0c3f1f041c2d06073709b340f96c3884f2b9

  • \??\c:\Users\Admin\AppData\Local\Temp\s2dcbayv\s2dcbayv.cmdline

    Filesize

    204B

    MD5

    a19c7c8d21493d16fbb370ec161627d2

    SHA1

    b655b4a0ba1d0b01a081778c201162a0b7b14165

    SHA256

    a51e643b7fd63bd7ad55c96f2094a2a24776d637d72d08acbb899a90a37d47a4

    SHA512

    249973ee181e9c6ebc37ade0c5f084a8e14dc65d532299d74c478e45016cb58d0c2e63ce9e9dda3a07cf17a1db71b09ad9931876fbec89de6a0164f825097383

  • \ProgramData\chrome.dll

    Filesize

    676KB

    MD5

    eda18948a989176f4eebb175ce806255

    SHA1

    ff22a3d5f5fb705137f233c36622c79eab995897

    SHA256

    81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4

    SHA512

    160ed9990c37a4753fc0f5111c94414568654afbedc05308308197df2a99594f2d5d8fe511fd2279543a869ed20248e603d88a0b9b8fb119e8e6131b0c52ff85

  • memory/1492-28-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/1492-18-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/1492-26-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/1492-82-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/1492-81-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/1492-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1492-23-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/1492-21-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/1492-20-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/1492-19-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/1492-17-0x0000000000400000-0x0000000000700000-memory.dmp

    Filesize

    3.0MB

  • memory/2104-15-0x0000000000790000-0x0000000000798000-memory.dmp

    Filesize

    32KB

  • memory/2104-2-0x0000000074790000-0x0000000074E7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2104-0-0x000000007479E000-0x000000007479F000-memory.dmp

    Filesize

    4KB

  • memory/2104-1-0x0000000000F70000-0x0000000000F82000-memory.dmp

    Filesize

    72KB

  • memory/2104-29-0x0000000074790000-0x0000000074E7E000-memory.dmp

    Filesize

    6.9MB