Malicious PDF — malware analysis report

Static analysis result for SHA-256 22733e49d7a829a7…

MALICIOUS

PDF

38.0 KB Created: 2021-05-22 01:03:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 308f07b1d26785058e59f5f6ef10682a SHA-1: a1ea0e0e2a0be5964e36d04d33fda4ff499c05ee SHA-256: 22733e49d7a829a7177156ab07ee4ebc25c641be4464235dc1c4b5d7336443a0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, masquerading as free game hacks or generators. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or redirection attempt to deliver a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9407

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/free-minecraft-texture-packs-game-hack In PDF document text
    • http://amtabor2.at/images/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • http://amtabor2.at/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://amtabor2.at/images/rbxdemon_GM431946152.pdfIn PDF document text
    • http://amtabor2.at/images/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://amtabor2.at/images/pokemon-go-no-free-raid-pass_GM1094591345.pdfIn PDF document text
    • http://www.freenom.comHeyIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003586.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3586 27740 bytes
SHA-256: 468cafcdc98273eb090a9cb9f1efe3836c8f556d0498667591fb0e3deec3557a
font_01_sfnt_off00007394.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7394 18240 bytes
SHA-256: f1e7a9ae3acfaa3d56f6a9afcdcc307065316a5e3d8814942fd3993c062bfaf5

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