Malicious PDF — malware analysis report

Static analysis result for SHA-256 633188bac4b8aa8a…

MALICIOUS

PDF

34.8 KB Created: 2020-08-10 08:06:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c785603cbd06711da2e1b9e8ec0e71c SHA-1: 360bcd5a578047bacfeb4fa151518c88fc50b0a3 SHA-256: 633188bac4b8aa8a5f696994ff9285cd9c55739fefa723985ddbc96c250baa35
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed for SEO manipulation. A critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=telugu+bible+pdf+file+download', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, also contains this redirector URL and other PDF links, reinforcing the lure for free downloads.

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=telugu+bible+pdf+file+download In PDF document text
    • http://wofirow.cassinsackett.com/uploads/1/3/2/7/132741555/ae5f7f14e326.pdfIn PDF document text
    • http://pomoxijo.lake-of-dreams-campground.com/uploads/1/3/2/8/132814930/tupelatolep.pdfIn PDF document text
    • http://files.firstnewark.com/uploads/1/3/0/8/130874120/7381583.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/1/0432/3858/8584/files/50845528285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9707/1524/files/zopadiseratagagenokojixej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6238/6079/files/smash_bros_dojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/40279320790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7084/9181/files/20981003504.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/senerega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6284/3797/files/survey_of_accounting_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0991/6576/files/automatic_transmission_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6114/8837/files/85140454142.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4431/4024/files/26997942656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pinabazebovo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2572/6625/files/notatitimaluzibamak.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 4

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_off00004b1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B1F 5116 bytes
SHA-256: 873776714b54f6297f0e8e10e3de27a3b2ce4815b19ae167fac1053302c8b3c4
font_01_sfnt_off00005cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CB1 9816 bytes
SHA-256: b5aea410cb8b06abc69f08fb5ab3fc9eae2d8c573475432e013d3047260e1eb3

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