Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0bd21b6de57a3a2…

MALICIOUS

PDF

40.6 KB Created: 2021-05-10 14:32:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 552d43aedd5e1111b519628e835e3e74 SHA-1: 45429286fc8c8db0240fc9ea9dd87b77072792ae SHA-256: d0bd21b6de57a3a20827f8e0c7ccd347d27bd661ef930860e18cfa864085a2be
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free generators." The document body and heuristics indicate a lure for potentially unwanted content, likely leading to further malware or phishing. The presence of multiple embedded URLs suggests an attempt to drive traffic to these malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.xyz/app/431946152/roblox-free-clothes-hack-game-hack In PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/free-spins-coin-master-april-2021_GM406889139.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://elearning.man1acehselatan.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-com_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
font_00_sfnt_off000044c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44C4 24004 bytes
SHA-256: c405fa62fba4db5168ccc87a0ed54a3a8293a715583f1b83bdc1e979d252359d
font_01_sfnt_off00007b70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B70 18616 bytes
SHA-256: 103feac3cc5aa8b61edffdeede0b2c422429be550018f77d71a4c0e7d6940ea7

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