Malicious PDF — malware analysis report

Static analysis result for SHA-256 83c8f8b4377dc602…

MALICIOUS

PDF

40.9 KB Created: 2021-05-21 10:30:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 174458b198c1410e2d9a32c7a35e1ac1 SHA-1: d7f88f1e6f3863ab1d56ca3a4241bac78326add4 SHA-256: 83c8f8b4377dc602fca67774e9fb258a7c1f86f35b282c9f1c4851f08bbde564
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 and lures users with promises of free game hacks and generators. The document body explicitly mentions 'CLICK HERE TO ACCESS MINECRAFT GENERATOR 2', reinforcing the deceptive nature of the content. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect the user to a malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7508

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/how-to-download-minecraft-windows-10-edition-for-free-game-hack In PDF document text
    • http://g3galileo.com/images/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • http://g3galileo.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://g3galileo.com/images/free-robux-net_GM431946152.pdfIn PDF document text
    • http://g3galileo.com/images/free-400-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://g3galileo.com/images/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003657.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3657 27400 bytes
SHA-256: f8242aff2ac062b0b7fac3f09f8abbb60cc039f7acb3d8c99cfd343a418ccfaf
font_01_sfnt_off00007331.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7331 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00007ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE2 18764 bytes
SHA-256: 21f431781c44949058772af5dafb642530c243ab7b82586e83b465fe58a13039

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