Malicious PDF — malware analysis report

Static analysis result for SHA-256 907ac6841e95c839…

MALICIOUS

PDF

43.4 KB Created: 2021-05-14 23:12:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4943e3eb207dea643bcfedf488d3a6c2 SHA-1: 101599745a795497eb6c449dd8833e86965a28f4 SHA-256: 907ac6841e95c839fdbf40aebb2333e1a586f1bc4a6e6ac4dac8feb6a6861c8f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The document uses social engineering tactics, presenting itself as a 'Free Minecraft Packs' download to trick users into clicking a link. The embedded URL, https://netcdn.xyz/app/479516143/free-minecraft-packs-game-hack, likely leads to the download of a malicious payload. The heuristic 'SE_CLICKFIX' indicates the document may also instruct users to execute commands directly, further facilitating the download and execution of malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/479516143/free-minecraft-packs-game-hack PDF link annotation
    • https://www.colditex.com/images/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdfIn PDF document text
    • https://www.colditex.com/images/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • https://www.colditex.com/images/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://www.colditex.com/images/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • https://www.colditex.com/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://www.colditex.com/images/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • https://www.colditex.com/images/hack-coin-master-android-game_GM406889139.pdfIn PDF document text
    • https://www.colditex.com/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • https://www.colditex.com/images/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://www.colditex.com/images/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • https://www.colditex.com/images/roblox-heroes-online_GM431946152.pdfIn PDF document text
    • https://www.colditex.com/images/free-robux-safe_GM431946152.pdfIn PDF document text
    • https://www.colditex.com/images/robux-page_GM431946152.pdfIn PDF document text
    • https://www.colditex.com/images/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • https://www.colditex.com/images/free-robux-android_GM431946152.pdfIn PDF document text
    • https://www.colditex.com/images/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • https://www.colditex.com/images/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
    • https://www.colditex.com/images/free-minecraft-client_GM479516143.pdfIn PDF document text
    • https://www.colditex.com/images/coin-master-hack-lost-world-2021-com_GM406889139.pdfIn PDF document text
    • https://www.colditex.com/images/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004dbc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DBC 25684 bytes
SHA-256: 682fffcd3275d8ee4d4f5f1aef9b3dd1cd53634d50b3c8d3a63011673ee3e94f
font_01_sfnt_off000088a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88A1 17892 bytes
SHA-256: 25239530904106c80f39e3701b03422c9327d7e820d7c0c2c5fcca61992c3eb7

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