Malicious PDF — malware analysis report

Static analysis result for SHA-256 381e73532a0bbd54…

MALICIOUS

PDF

54.5 KB Created: 2020-08-01 06:24:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e67f733b230fd28ece95d9e2ed37c7c SHA-1: 406bdcfabf669be8f347c2291072ba83461f2c05 SHA-256: 381e73532a0bbd540232a9780274e4959b789b1b139a63e06ec5fb385699d3ee
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=count+items+in+list+python' which is flagged as malicious. The presence of numerous external PDF links suggests a link farm or a method to distribute further malicious content, aligning with SEO manipulation tactics.

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=count+items+in+list+python In PDF document text
    • http://files.javakhkservice.com/uploads/1/3/1/6/131607063/sovatevijofaj.pdfIn PDF document text
    • http://files.dreamingtreephotomn.com/uploads/1/3/0/8/130814397/xagizewire.pdfIn PDF document text
    • http://files.lifeword.nl/uploads/1/3/0/7/130775368/foruf_gukejiwi.pdfIn PDF document text
    • http://files.gene-switch.eu/uploads/1/3/2/6/132695556/9537323.pdfIn PDF document text
    • http://files.hairandmakeupbyalicia.com/uploads/1/3/0/9/130969310/6907172.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/1/0431/7803/3303/files/10653959390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/kagemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2567/7982/files/88113129958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/4646748451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6717/9165/files/fatuwojutaledodure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9153/2699/files/74941060860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6209/8085/files/fofadagaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6009/2309/files/83144070910.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7211/9193/files/jimogenuranelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6381/3020/files/nivajatumiberumi.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 8

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_off00007687.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7687 4760 bytes
SHA-256: 5cafbdd285d0f1c85ba888b1e2c0993e4bb89e3fa2929312b6a0cccf9d935a3a
font_01_sfnt_off00008693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8693 15380 bytes
SHA-256: 895fc4e97a48c87df2a37b8650b0229432dcc9fad694405e8ffcd420055c403a
font_02_sfnt_off0000b729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB729 16312 bytes
SHA-256: 975089639afea594160f6daa1ae948ffc4125994d61a9fd32dce02580f7b6b15

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