Malicious PDF — malware analysis report

Static analysis result for SHA-256 a18bf34c34d4bbee…

MALICIOUS

PDF

42.0 KB Created: 2021-05-21 20:07:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 8cd22666bb95ffeaf081585de7919192 SHA-1: edf2453443c2327bc12408858f5a64cff958ae73 SHA-256: a18bf34c34d4bbee6872e0417be820b3b7eca649356672702ea55fbf443cf3e9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically promoting a 'free generator / game hack' for Minecraft. The document body and heuristics indicate a lure to click these links, which likely leads to further malicious content or downloads. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a malicious redirection workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8099

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-hack-minecraft-pe-game-hack In PDF document text
    • http://www.gadanie.lv/images/tiktok-free-views_GM835599320.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://www.gadanie.lv/images/coin-master-spin-link-free_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000035a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35A9 25212 bytes
SHA-256: 2aac23148a83cacf38ab675804d0a91bc8110015237283d004af7f52bd706d5a
font_01_sfnt_off00006e84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E84 3020 bytes
SHA-256: f1a29adcea636583330be8db4f6466410de551ac48576b9e1aa5c34e2d665a1f
font_02_sfnt_off000078d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D9 2816 bytes
SHA-256: 4555740682277f0055d57b15bd0ba953e5b51415ea3d21c93db391eace072d4f
font_03_sfnt_off000082ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82EA 18196 bytes
SHA-256: d34ad1dbd9dd4a0600043f837e3a6c6fdafb13b781254d1b565cb7d4b46c75dd

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