Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2e98c3c836fff5e…

MALICIOUS

PDF

31.3 KB Created: 2021-07-19 06:24:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 45da33df9a29a9fe0ef48b778e18607c SHA-1: b9be86a6ebbf1bd551438fea0660681c78a08bba SHA-256: a2e98c3c836fff5e1f676ee0673c910d9b60e8368de3e592ac52136515324426
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and further malicious PDFs, disguised as game hacks and printables. The document body explicitly contains a call to action to download a generator, reinforcing the lure. The embedded URLs are designed to lead the user to download additional malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9893

Heuristics 4

  • 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.
  • 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 http://netcdn.tw/app/479516143/free-minecraft-printables-game-hack In PDF document text
    • http://ddsadler.net/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://ddsadler.net/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://ddsadler.net/images/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://ddsadler.net/images/minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://ddsadler.net/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://ddsadler.net/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://ddsadler.net/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://ddsadler.net/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://ddsadler.net/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://ddsadler.net/images/coin-master-hack-without-verification_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
font_00_sfnt_off0000296c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x296C 21984 bytes
SHA-256: 727f377514ddce366091e1176c10d9affe3c79fe893b9cfdea1238ecba024bc7
font_01_sfnt_off0000594a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x594A 17956 bytes
SHA-256: e5df45a09fd76c24ea43a7fa28fc5fe559da15feee3d3577044ff876206ae01e

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