Malicious PDF — malware analysis report

Static analysis result for SHA-256 83fbbe3e0cbd683d…

MALICIOUS

PDF

33.5 KB Created: 2021-05-21 04:38:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2245fdf72c48c523e0260510653f1629 SHA-1: 7b9c2f384a9394d6b895a121340c4de9c1d9bf7e SHA-256: 83fbbe3e0cbd683dd1cb3873942c7a84fab4fd1486433f95d2750812143ecea7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks or generators. The document body explicitly mentions 'TIKTOK GENERATOR' and 'CLICK HERE TO ACCESS', reinforcing the lure. The embedded URLs suggest a phishing or scamming attempt, likely leading to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9506

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/835599320/is-tiktok-app-free-game-hack In PDF document text
    • http://classicskitours.net/images/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://classicskitours.net/images/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://classicskitours.net/images/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • http://classicskitours.net/images/roblox-gang-rape_GM431946152.pdfIn PDF document text
    • http://classicskitours.net/images/pubg-uc-2021_GM1330123889.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
stream_002_off00002f0f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F0F 23200 bytes
SHA-256: 5499b48f1e30b9eb41d2fb60087fd75466b42daf5e4144ba3ee76db05782d5f4
font_01_sfnt_off00006335.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6335 17632 bytes
SHA-256: 5f52ba2e19c2ccb4ce1169e828da1869a3978b1b2358f711c7393d0a290af5b7

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