Malicious PDF — malware analysis report

Static analysis result for SHA-256 99d63d97286bc3d3…

MALICIOUS

PDF

41.9 KB Created: 2021-05-23 19:54:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9af3f33fd0b942a66d8ed69b6f46f461 SHA-1: 86ed5d0f200bfb2fec0e9fb52f84a078ccd944ca SHA-256: 99d63d97286bc3d31ba58baca533b9a4a0ee55c84f2cdfc0a63e729b2d5ef17a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, disguised as game hacks and generators. The document body explicitly mentions 'Minecraft Free Ios 2021' and includes a call to action to 'CLICK HERE TO ACCESS MINECRAFT GENERATOR'. The embedded URLs likely lead to further malicious content or exploit delivery. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8078

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 https://netcdn.xyz/app/479516143/minecraft-free-ios-2021-game-hack In PDF document text
    • http://aspiesretreat.org/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://aspiesretreat.org/images/free-robux-net_GM431946152.pdfIn PDF document text
    • http://aspiesretreat.org/images/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://aspiesretreat.org/images/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • http://aspiesretreat.org/images/free-robux-android_GM431946152.pdfIn PDF document text
    • https://code.giftcards.comIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36CD 24652 bytes
SHA-256: b74aab767586cb9edf4f014994e9b40087f0bd7869a16d3d4ab5a6c064eb47be
font_01_sfnt_off00006e15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E15 3020 bytes
SHA-256: f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f
font_02_sfnt_off00007869.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7869 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off00008279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8279 18112 bytes
SHA-256: b55c1404a277e69c847ae3cf6ace6563469f03eb0031cfae1db94f462975a683