Malicious PDF — malware analysis report

Static analysis result for SHA-256 658bc761fbaca80d…

MALICIOUS

PDF

53.6 KB Created: 2020-08-13 21:37:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ee319a23d9d16479b954e2e37f4327a8 SHA-1: 8e4b39f78985e765ab294e8cd01dfc165db6ce42 SHA-256: 658bc761fbaca80d77a6b422cec8109d460ff510e1293823ec8658de4ec68a10
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the document is part of a link farm or phishing campaign designed to drive traffic to malicious sites, likely for malware distribution or credential harvesting.

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=mission+mangal+songs+free In PDF document text
    • http://files.beautybeathairstore.com/uploads/1/3/1/4/131452735/fd0f1da0.pdfIn PDF document text
    • http://zutiri.nanoteacher.org/uploads/1/3/1/8/131872149/fae5cf8e9.pdfIn PDF document text
    • http://files.artlaws.com/uploads/1/3/1/3/131383297/1d43401383668.pdfIn PDF document text
    • http://files.samwheelockmusic.com/uploads/1/3/2/6/132681409/5434528.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/1/0432/6657/2452/files/wolofalisugufezibuwaxafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5700/4192/files/bagipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tinoled.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4768/8091/files/lu_file_khng_chnh_sa_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8601/0776/files/7262745045.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6509/6857/files/66373926855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7170/9092/files/36519442441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/68776833402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5517/6097/files/52129971002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9197/5580/files/18699937256.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000079bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79BD 5092 bytes
SHA-256: 2fb6f1e49bf5d9456f1a85f1a8ebba2630fe8735ceee0ac717437ad057ee06bd
font_01_sfnt_off00008af7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AF7 11564 bytes
SHA-256: daae190b5176d97dcc4d2e612725f249600bc0d20f22f7331935156a033626ca
font_02_sfnt_off0000b293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB293 16700 bytes
SHA-256: e12d31d8609d0f05bcb507b6e055698e367fad7df9c8cf2e12f5487728e008de

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