Malicious PDF — malware analysis report

Static analysis result for SHA-256 5387f3b1f3540171…

MALICIOUS

PDF

42.1 KB Created: 2020-08-13 23:38:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff80be1b8f8de12c76c281dd82a6e8ee SHA-1: b56e73b482e360d93793f8bb856f9e66e3ac879c SHA-256: 5387f3b1f3540171cb92455291ce8744b0fc19057a33637d702668300dc949ce
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources, indicating a link farm or redirection attempt. One critical heuristic firing identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=creative+answer+to+how+was+your+day'. The document body, though partially corrupted, also contains this URL and other links to PDF files hosted on Shopify. This suggests the primary goal is to redirect the user to 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.cc/pify?keyword=creative+answer+to+how+was+your+day In PDF document text
    • http://peragux.committedtohim.com/uploads/1/3/2/6/132683286/c6669e8234568.pdfIn PDF document text
    • http://files.farmingtonavenuebaptist.org/uploads/1/3/1/8/131871414/5669621.pdfIn PDF document text
    • http://files.drderickclinic.com/uploads/1/3/1/4/131406173/nidosuguro-tovakamaxije-niwekukaf-rekap.pdfIn PDF document text
    • http://files.akadeltapsiomega.org/uploads/1/3/2/6/132696274/nasubetoki.pdfIn PDF document text
    • http://pabig.westportom.com/uploads/1/3/1/3/131379899/7176638.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/1/0429/2955/3575/files/bautagebuch_bg_bau.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2568/6951/files/a_wrinkle_in_time_chapter_9_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1400/0540/files/3d_reader_uptodown.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4062/8133/files/making_hard_decisions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3331/1904/files/gufijetaxodofugavoviloxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7974/6201/files/52303745465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7678/7107/files/65276568276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7935/8869/files/motorcycle_frame_jig_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74832969368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5007/3240/files/atf_form_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/9549/5590/files/entrepreneurial_intention_questionnaire.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_off000068c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68C0 5040 bytes
SHA-256: 02a2a1ca069d184d6f605c58dc00ff0d20e8cb93635a7e64a81ba04d8a301ed5
font_01_sfnt_off000079ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79EC 9892 bytes
SHA-256: 23f9526747703ce2c6c52ca2ab9f9d487cd478d666bc5fc0d600a12985a1ab8f

Open this report in the interactive analyzer, or submit your own file for analysis.