Malicious PDF — malware analysis report

Static analysis result for SHA-256 f13d8677bdbe410e…

MALICIOUS

PDF

54.0 KB Created: 2020-08-04 01:33:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 795e3d48f8cd5a428a9747c5c5fce5fb SHA-1: a43267c5425263da9ef54c89a909cf76eee70d7d SHA-256: f13d8677bdbe410e273bc2074d7dc3db52228a75dc944fb3a76db0f24d121995
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=project+management+budget+template+pdf'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous external links, including 'https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tadigepulimo.pdf'. The document body, though heavily obfuscated, contains text related to project management templates, suggesting a lure to entice users to click the malicious link.

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=project+management+budget+template+pdf In PDF document text
    • http://mugade.postmaster-jobs.com/uploads/1/3/1/4/131437886/9068800.pdfIn PDF document text
    • http://files.robocupjunioruk.org/uploads/1/3/0/9/130969260/zugivirufo.pdfIn PDF document text
    • http://files.themoveablechurch.org/uploads/1/3/0/8/130874128/9175303.pdfIn PDF document text
    • http://files.ucsbvsa.com/uploads/1/3/0/8/130874403/fatuvukajisedazad.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/1/0428/9835/8432/files/tadigepulimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2891/9973/files/19064706391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dedagefegumam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4904/1563/files/foxebavexazamijoxikagef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/45012737216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2093/5590/files/dosiguzap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8730/5629/files/radizalewideta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3116/7137/files/rugofepuwosuronakuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/42482349572.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42479515564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3009/3728/files/texobup.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_off000095cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95CC 5512 bytes
SHA-256: 166feef3514d8ddfc81a7e8d3300b91846a504b5a91821c0bb7bf4c9c8d63695
font_01_sfnt_off0000a875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA875 9948 bytes
SHA-256: bdc7e8657b95b10559ae9104f982d3f8b5ab3a5b3640595669a7c48e7fde9704

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