Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3f1a007ff268ea6…

MALICIOUS

PDF

44.1 KB Created: 2021-05-15 08:31:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e7d136eca820b5960da5033465735317 SHA-1: 7415a4daab5ae6aad3ff5b10cd4bd7e40e53bc69 SHA-256: b3f1a007ff268ea6ea6c731848a900c76d9b0ff3fbd3d9f822a8eb9e6ad89bc8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free generators. The primary malicious URL identified is https://netcdn.xyz/app/479516143/minecraft-client-download-game-hack, which is associated with a game hack lure. The document body and embedded URLs suggest a social engineering tactic to drive traffic to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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-client-download-game-hack In PDF document text
    • https://www.audipec.com.br/images/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.audipec.com.br/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.audipec.com.br/images/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://www.audipec.com.br/images/coin-master-homepage_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/how-can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.audipec.com.br/images/roblox-com-hack_GM431946152.pdfIn PDF document text
    • https://www.audipec.com.br/images/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • https://www.audipec.com.br/images/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/roblox-avatar-tester_GM431946152.pdfIn PDF document text
    • https://www.audipec.com.br/images/minecraft-free-apk_GM479516143.pdfIn PDF document text
    • https://www.audipec.com.br/images/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/minecraft-free-download_GM479516143.pdfIn PDF document text
    • https://www.audipec.com.br/images/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.audipec.com.br/images/coin-master-daily-free-spins-2021_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_003_off000048ea.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48EA 24156 bytes
SHA-256: 9866f7cf53d639999fdc9608fefd3d5738ed6d00142a11cab4b0945f45027086
font_01_sfnt_off00007fe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE1 2904 bytes
SHA-256: 7e6c95af62597fca50e5790f27262ff650b4539ae1f60ec4b70e6d5e14ac2b25
font_02_sfnt_off000089ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89EE 18292 bytes
SHA-256: df528b26126d4fc11b7eeaa3b1f911f76ffca14ff52ae065bc56290066d0d251

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