Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bf4295625dac918…

MALICIOUS

PDF

46.3 KB Created: 2021-06-10 13:38:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 94bf67aa63a69dee5c96d39b0be1fd11 SHA-1: b7a6619b1831a66e879630e41e1dbd55a696ce87 SHA-256: 7bf4295625dac918351311989fb97aeba2ebcbf6c19172bbd8ac1ddcaec27d64
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that point to known malicious redirector infrastructure, specifically targeting users interested in game hacks. The document body and extracted URLs suggest a lure for obtaining game cheats or currency, which is a common tactic for phishing or malware distribution. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a high likelihood of a malicious payload being delivered.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.tw/app/431946152/roblox-hack-age-checker-how-to-find-other-people In PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/coin-free-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/free-robux-instantly-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/coin-master-sound-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/roblox-executor-free-download_GM431946152.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/infinite-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.man1tapteng.sch.id/__statics/gudangsoal/files/free-attacks-coin-master_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_004_off0000528a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x528A 26076 bytes
SHA-256: e4bc6f563f48915a26e0d4dc033a01f39db28f754a2d696b6be1cee38fdb6925
font_01_sfnt_off00008e32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E32 19756 bytes
SHA-256: da5e30ea7747cbf7b0988e36514c2aa79d38c54a540cdfa382fe962ff9392eb2