Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac0de9bae22fe302…

MALICIOUS

PDF

39.3 KB Created: 2021-05-24 16:17:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9c6abdf0db8601e3a479de4e58eafbf8 SHA-1: d93cb288e42d7a9d78b8c92223bdfc45aae363f9 SHA-256: ac0de9bae22fe302b78887f57b01fc5901bf0fdae05b93ebf8e724c50c0cf829
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and malicious infrastructure, disguised as game hacks and generators. The document body and heuristics indicate a lure to download or access a 'free generator' or 'game hack', which is a common social engineering tactic. The embedded URLs are the primary indicators of malicious intent, likely leading to further malware downloads or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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-download-ios-game-hack In PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/totally-free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://www.otomasi.uinjambi.ac.id/repository/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://code.giftcards.comIn 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_off00003378.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3378 26004 bytes
SHA-256: f919d6cce8ff19f99d39d9e33bb8b83ca5ec99303ae0f3cbefea7b48a72e4a2e
font_01_sfnt_off00006e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E69 2824 bytes
SHA-256: 61b3a573627d4f03d30684157e1627da3b4499cefab0fdf17b45999135b0250b
font_02_sfnt_off00007810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7810 18292 bytes
SHA-256: 753811b4f273a5193b6cf6bc91b948249e8ca1a4fe068b1e84efe9b046d1d7eb

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