PDF static analysis report

Static analysis result for SHA-256 99f81f26384f0b63…

SUSPICIOUS

PDF

34.9 KB Created: 2021-07-09 15:56:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c91a9d950021ce819116c35a8815e77e SHA-1: b065f66ab58cda39e054ff3f785e4db486fa4594 SHA-256: 99f81f26384f0b631afc3c943a5621bf3e749b907fc0fb520449f04874bc2d63
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an external URI pointing to a website offering 'tiktok-free-website-game-hack', which is a common lure for phishing or malware distribution. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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 http://netcdn.tw/app/835599320/tiktok-free-website-game-hack PDF link annotation
    • https://htdvn.com/public/upload/files/how-to-get-free-robux-no-hacks-no-scams_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-minecraft-mods-for-xbox-one_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-roblox-clothes-codes_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-free-boombox-script_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-island-in-roblox-bubble-gum-simulator_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/sound-space-hack-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-hack-roblox-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-get-your-robux-back-after-being-hacked_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/karina-roblox-zombie-free-zones_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-pc-robux_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/robux-come_GM431946152.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_002_off00003131.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3131 23204 bytes
SHA-256: 9d1161adcd8070c80d7cf1a5d2171af4c1ad6b1150f39e91bb2f1eeaad5e13a4
font_01_sfnt_off00006587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6587 18328 bytes
SHA-256: 054420e37e39877a41ca93a2e717b56fa52cdefaf0db7b400f7be62a0b4c36a9