Malicious PDF — malware analysis report

Static analysis result for SHA-256 334b757cb0ad5a16…

MALICIOUS

PDF

40.4 KB Created: 2020-08-02 15:13:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c4897b7e682152103652a689b9b52547 SHA-1: 4f776abdb5921c073566efd7fc8c2ee2df48d57a SHA-256: 334b757cb0ad5a16c7d023645dc4252f05162a35977195449c9a0d44676a1990
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=minecraft+xp+command'. Additionally, it exhibits a PDF link farm behavior, with numerous external links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ttraff.cc/pify?keyword=minecraft+xp+command In PDF document text
    • http://files.serendipitygv.com/uploads/1/3/1/1/131164132/pibamuzobateg_makeguseteguzo_puvamujuvabeti_fejenedivake.pdfIn PDF document text
    • http://files.truaesthetica.com/uploads/1/3/1/4/131406369/3111343.pdfIn PDF document text
    • http://files.fivesaintscluster.com/uploads/1/3/0/7/130775633/puzavad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6169/8969/files/redefujijiduwolegepo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7573/1616/files/php_parsing_url.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3425/5265/files/pitozilepagite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3801/4616/files/meridif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/80370557680.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4469/0337/files/kobijinagako.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2095/files/9772557881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nemopijudesukofareran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1673/9222/files/lumosedokapilibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8886/2614/files/nazibutatukul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3271/5163/files/vaborix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8694/5181/files/4950429107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6052/6246/files/what_is_the_best_ds_emulator.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

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
font_00_sfnt_off000062eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EB 5164 bytes
SHA-256: 8b4cf40633f052b1a5e53909e95a0c32c10abcf9a9566e3adecc64b4dd389b01
font_01_sfnt_off0000747c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x747C 9452 bytes
SHA-256: 248516399e5c8ca3921ebfe9249df85e9f4d5c96a002a644d78fafcda8e3d4d7

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