Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e01ad8d661a708f…

MALICIOUS

PDF

39.5 KB Created: 2020-08-03 23:07:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3bf67415f23303dc36fe017de00aa40a SHA-1: cadaaf43d6612f2d55cdc257e3d91b235e4e394e SHA-256: 1e01ad8d661a708fd24ec80d272aa4de91bc58c816678e342ac91dfb9b6617db
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=proyecto+de+tesis+unalm+pdf. The document body, though partially corrupted, suggests an academic theme ('Proyecto de tesis unalm pdf') which is likely used as a lure. The presence of many external links, including to Shopify domains, indicates a link farm strategy to obscure the ultimate destination or to spread the malicious content.

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.com/pify?keyword=proyecto+de+tesis+unalm+pdf In PDF document text
    • http://files.wemeantoklean.com/uploads/1/3/1/4/131438137/xawaduzi.pdfIn PDF document text
    • http://files.nttechnology.net/uploads/1/3/0/9/130969904/juguxaxujaxite-vubozunim.pdfIn PDF document text
    • http://files.thirdcinemaproductions.com/uploads/1/3/1/3/131379749/sonazez.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/1/0438/9978/1275/files/60705733127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9421/1750/files/kozuriwunafavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0506/6907/files/nuvikojifojamovewukig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5209/0022/files/31716744888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/soxubojolorilafurukirazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6208/3232/files/45265051791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/35850078312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8686/3783/files/70675032887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/30198264185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4115/2421/files/sowigapumenug.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 8

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_off00005b23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B23 5404 bytes
SHA-256: 1708e558a6ecf1b3dad637d065cb60136fa9fb73175b013c937b548a16b17214
font_01_sfnt_off00006d77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D77 10556 bytes
SHA-256: be67d92e3f65d19c1ecfded1e0b609b22111a5c5c0c04a9709b41798575cfc02

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