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21/01/2025, 18:41 UTC

250121-xb31baxlem 10

21/01/2025, 18:28 UTC

250121-w4chdsxjfp 10

14/01/2025, 17:55 UTC

250114-whtvjsvlaz 10

14/01/2025, 17:51 UTC

250114-wfg3zavkb1 10

14/01/2025, 16:15 UTC

250114-tqfa1ssncw 10

13/01/2025, 10:33 UTC

250113-mlhf9aymaz 10

11/01/2025, 23:03 UTC

250111-21xbaatmgz 7

11/01/2025, 22:53 UTC

250111-2vd8hswjdn 10

05/01/2025, 19:04 UTC

250105-xqxrvavngm 10

05/01/2025, 18:50 UTC

250105-xhbveaspat 10

Analysis

  • max time kernel
    837s
  • max time network
    838s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    05/01/2025, 19:04 UTC

General

  • Target

    66bddfcb52736_vidar.exe

  • Size

    190KB

  • MD5

    fedb687ed23f77925b35623027f799bb

  • SHA1

    7f27d0290ecc2c81bf2b2d0fa1026f54fd687c81

  • SHA256

    325396d5ffca8546730b9a56c2d0ed99238d48b5e1c3c49e7d027505ea13b8d1

  • SHA512

    6d1fa39560f4d7ca57905bc57d615acf96b1ef69ca2a4d7c0353278e8d4466298ed87f514463c49d671cb0e3b6a269a78636a10a1e463dba5c83fe067dc5df18

  • SSDEEP

    3072:XqsEJybpRHuJKKBardRei4UGvI96/ZO6RAkeOCeP9sZy28se:XqsMyNRHuKikUi42KZO6PffmZy2d

Malware Config

Extracted

Family

vidar

Version

10.7

Botnet

877956da9963e0825aa43a159a358f24

C2

https://steamcommunity.com/profiles/76561199751190313

https://t.me/pech0nk

Attributes
  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Signatures

  • Detect Vidar Stealer 8 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar family
  • 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 4 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 3 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66bddfcb52736_vidar.exe
    "C:\Users\Admin\AppData\Local\Temp\66bddfcb52736_vidar.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2968
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2652
      • 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\JDAKJJDBGCAK" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2700
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:2964

Network

  • flag-us
    DNS
    steamcommunity.com
    RegAsm.exe
    Remote address:
    8.8.8.8:53
    Request
    steamcommunity.com
    IN A
    Response
    steamcommunity.com
    IN A
    104.103.247.162
  • flag-gb
    GET
    https://steamcommunity.com/profiles/76561199751190313
    RegAsm.exe
    Remote address:
    104.103.247.162:443
    Request
    GET /profiles/76561199751190313 HTTP/1.1
    Host: steamcommunity.com
    Connection: Keep-Alive
    Cache-Control: no-cache
    Response
    HTTP/1.1 200 OK
    Server: nginx
    Content-Type: text/html; charset=UTF-8
    Content-Security-Policy: default-src blob: data: https: 'unsafe-inline' 'unsafe-eval'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://community.fastly.steamstatic.com/ https://cdn.fastly.steamstatic.com/steamcommunity/public/assets/ https://api.steampowered.com/ https://recaptcha.net https://www.google.com/recaptcha/ https://www.gstatic.cn/recaptcha/ https://www.gstatic.com/recaptcha/ https://www.youtube.com/ https://s.ytimg.com; object-src 'none'; connect-src 'self' https://community.fastly.steamstatic.com/ https://store.steampowered.com/ https://checkout.steampowered.com/ wss://community.steam-api.com/websocket/ https://api.steampowered.com/ https://login.steampowered.com/ https://help.steampowered.com/ https://steam.tv/ https://steamcommunity.com/ https://*.valvesoftware.com https://*.steambeta.net https://*.discovery.beta.steamserver.net https://*.steamcontent.com https://steambroadcast.akamaized.net https://steambroadcast-test.akamaized.net https://broadcast.st.dl.eccdnx.com https://lv.queniujq.cn https://steambroadcastchat.akamaized.net http://127.0.0.1:27060 ws://127.0.0.1:27060; frame-src 'self' steam: https://store.steampowered.com/ https://help.steampowered.com/ https://login.steampowered.com/ https://checkout.steampowered.com/ https://www.youtube.com https://www.google.com https://sketchfab.com https://player.vimeo.com https://medal.tv https://www.google.com/recaptcha/ https://recaptcha.net/recaptcha/; frame-ancestors 'self' https://store.steampowered.com/;
    Expires: Mon, 26 Jul 1997 05:00:00 GMT
    Cache-Control: no-cache
    Date: Sun, 05 Jan 2025 19:04:29 GMT
    Content-Length: 35248
    Connection: keep-alive
    Set-Cookie: sessionid=57cd0a28feb86f41aad50cb6; Path=/; Secure; SameSite=None
    Set-Cookie: steamCountry=GB%7C7d625a3b038bb98f68b4e14dac147806; Path=/; Secure; HttpOnly; SameSite=None
  • flag-us
    DNS
    t.me
    RegAsm.exe
    Remote address:
    8.8.8.8:53
    Request
    t.me
    IN A
    Response
    t.me
    IN A
    149.154.167.99
  • flag-us
    DNS
    arpdabl.zapto.org
    RegAsm.exe
    Remote address:
    8.8.8.8:53
    Request
    arpdabl.zapto.org
    IN A
    Response
    arpdabl.zapto.org
    IN A
    0.0.0.0
  • flag-us
    DNS
    www.microsoft.com
    Remote address:
    8.8.8.8:53
    Request
    www.microsoft.com
    IN A
    Response
    www.microsoft.com
    IN CNAME
    www.microsoft.com-c-3.edgekey.net
    www.microsoft.com-c-3.edgekey.net
    IN CNAME
    www.microsoft.com-c-3.edgekey.net.globalredir.akadns.net
    www.microsoft.com-c-3.edgekey.net.globalredir.akadns.net
    IN CNAME
    e13678.dscb.akamaiedge.net
    e13678.dscb.akamaiedge.net
    IN A
    95.100.245.144
  • flag-gb
    GET
    http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl
    Remote address:
    95.100.245.144:80
    Request
    GET /pkiops/crl/MicCodSigPCA2011_2011-07-08.crl HTTP/1.1
    Connection: Keep-Alive
    Accept: */*
    If-Modified-Since: Sun, 18 Aug 2024 00:23:49 GMT
    User-Agent: Microsoft-CryptoAPI/6.1
    Host: www.microsoft.com
    Response
    HTTP/1.1 200 OK
    Content-Length: 1078
    Content-Type: application/octet-stream
    Content-MD5: PjrtHAukbJio72s77Ag5mA==
    Last-Modified: Thu, 31 Oct 2024 23:26:09 GMT
    ETag: 0x8DCFA0366D6C4CA
    x-ms-request-id: 7ca9c103-d01e-0016-3fee-2ba13d000000
    x-ms-version: 2009-09-19
    x-ms-lease-status: unlocked
    x-ms-blob-type: BlockBlob
    Date: Sun, 05 Jan 2025 19:04:59 GMT
    Connection: keep-alive
    TLS_version: UNKNOWN
    ms-cv: CASMicrosoftCV19dc968f.0
    ms-cv-esi: CASMicrosoftCV19dc968f.0
    X-RTag: RT
  • flag-us
    DNS
    crl.microsoft.com
    Remote address:
    8.8.8.8:53
    Request
    crl.microsoft.com
    IN A
    Response
    crl.microsoft.com
    IN CNAME
    crl.www.ms.akadns.net
    crl.www.ms.akadns.net
    IN CNAME
    a1363.dscg.akamai.net
    a1363.dscg.akamai.net
    IN A
    2.19.252.143
    a1363.dscg.akamai.net
    IN A
    2.19.252.157
  • flag-gb
    GET
    http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
    Remote address:
    2.19.252.143:80
    Request
    GET /pki/crl/products/MicRooCerAut2011_2011_03_22.crl HTTP/1.1
    Connection: Keep-Alive
    Accept: */*
    If-Modified-Since: Thu, 26 Sep 2024 02:21:11 GMT
    User-Agent: Microsoft-CryptoAPI/6.1
    Host: crl.microsoft.com
    Response
    HTTP/1.1 200 OK
    Content-Length: 1036
    Content-Type: application/octet-stream
    Content-MD5: +oTkvMkqpdtzWrUHEQQM3g==
    Last-Modified: Thu, 12 Dec 2024 00:06:56 GMT
    ETag: 0x8DD1A40E476D877
    Server: Windows-Azure-Blob/1.0 Microsoft-HTTPAPI/2.0
    x-ms-request-id: 346168ca-101e-0054-5d36-4c18bd000000
    x-ms-version: 2009-09-19
    x-ms-lease-status: unlocked
    x-ms-blob-type: BlockBlob
    Date: Sun, 05 Jan 2025 19:04:59 GMT
    Connection: keep-alive
  • 104.103.247.162:443
    https://steamcommunity.com/profiles/76561199751190313
    tls, http
    RegAsm.exe
    1.4kB
    42.6kB
    22
    36

    HTTP Request

    GET https://steamcommunity.com/profiles/76561199751190313

    HTTP Response

    200
  • 195.201.118.191:443
    RegAsm.exe
    152 B
    120 B
    3
    3
  • 195.201.118.191:443
    RegAsm.exe
    152 B
    120 B
    3
    3
  • 149.154.167.99:443
    t.me
    tls
    RegAsm.exe
    385 B
    219 B
    5
    5
  • 149.154.167.99:443
    t.me
    tls
    RegAsm.exe
    347 B
    219 B
    5
    5
  • 149.154.167.99:443
    t.me
    tls
    RegAsm.exe
    288 B
    219 B
    5
    5
  • 149.154.167.99:443
    t.me
    RegAsm.exe
    190 B
    92 B
    4
    2
  • 95.100.245.144:80
    http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl
    http
    439 B
    1.7kB
    5
    4

    HTTP Request

    GET http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl

    HTTP Response

    200
  • 2.19.252.143:80
    http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl
    http
    445 B
    1.7kB
    5
    4

    HTTP Request

    GET http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl

    HTTP Response

    200
  • 8.8.8.8:53
    steamcommunity.com
    dns
    RegAsm.exe
    64 B
    80 B
    1
    1

    DNS Request

    steamcommunity.com

    DNS Response

    104.103.247.162

  • 8.8.8.8:53
    t.me
    dns
    RegAsm.exe
    50 B
    66 B
    1
    1

    DNS Request

    t.me

    DNS Response

    149.154.167.99

  • 8.8.8.8:53
    arpdabl.zapto.org
    dns
    RegAsm.exe
    63 B
    79 B
    1
    1

    DNS Request

    arpdabl.zapto.org

    DNS Response

    0.0.0.0

  • 8.8.8.8:53
    www.microsoft.com
    dns
    63 B
    230 B
    1
    1

    DNS Request

    www.microsoft.com

    DNS Response

    95.100.245.144

  • 8.8.8.8:53
    crl.microsoft.com
    dns
    63 B
    162 B
    1
    1

    DNS Request

    crl.microsoft.com

    DNS Response

    2.19.252.143
    2.19.252.157

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab5218.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar523A.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/2652-8-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2652-7-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2652-18-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2652-69-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2652-15-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2652-9-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2652-68-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2652-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2652-6-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2652-5-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2652-4-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2652-12-0x0000000000400000-0x0000000000643000-memory.dmp

    Filesize

    2.3MB

  • memory/2968-19-0x00000000741D0000-0x00000000748BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2968-1-0x0000000000AF0000-0x0000000000B26000-memory.dmp

    Filesize

    216KB

  • memory/2968-0-0x00000000741DE000-0x00000000741DF000-memory.dmp

    Filesize

    4KB

  • memory/2968-16-0x00000000741D0000-0x00000000748BE000-memory.dmp

    Filesize

    6.9MB

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