Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4c1fb2c2f2df6ba…

MALICIOUS

PDF

39.3 KB Created: 2021-05-22 18:41:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a6a6844f54cbfb29218ce37897558155 SHA-1: c653db52cfa1e35f1dd32e491df513378c727c44 SHA-256: c4c1fb2c2f2df6ba11b63b0c187d1ad44fc47648d1bb795d1d019ab21ab66c03
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 free game items. The document body explicitly mentions 'Free Minecraft Accounts Reddit' and includes a 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' call to action, directing users to a malicious URL. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites.

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/free-minecraft-accounts-reddit-game-hack In PDF document text
    • http://bunadsmaria.com/images/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://bunadsmaria.com/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://bunadsmaria.com/images/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • http://bunadsmaria.com/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://bunadsmaria.com/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://education.minecraftIn 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_off000032c2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32C2 26384 bytes
SHA-256: 3f4349444470d43decf4701534f2293431f6f539a8599f9a7d84cfadf147dd47
font_01_sfnt_off00006e5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E5F 3048 bytes
SHA-256: 6f634f415d706530fbb5de7312a36a6d314c76ba23089e1b99df025b5c4e66cc
font_02_sfnt_off000078df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78DF 18024 bytes
SHA-256: 8cc2f99dc924a15d52918b37ec4a77595277c9fc296e6ac0964170e61a15a16b

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