Malicious PDF — malware analysis report

Static analysis result for SHA-256 88ea2d405dfc7dba…

MALICIOUS

PDF

44.2 KB Created: 2020-08-24 07:03:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9bf942881636aec3deaed0b65c6b0bb1 SHA-1: 7b7796ab6a14b6bd364d4d52584224bfb3be33c2 SHA-256: 88ea2d405dfc7dba6d87bcf4c99b05fd368fa806807bc9e48dd878b6f60d8eaa
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, including one that redirects to a malicious domain identified as a redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'calendar schedule template'. The presence of multiple links and the critical heuristic firing for a malicious redirector strongly suggest a phishing or scam attempt.

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=calendar+schedule+template+2018+excel In PDF document text
    • http://files.joseluisperezjim.com/uploads/1/3/1/3/131383553/gejuxab.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/1/0431/6279/6186/files/67203863235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0655/8359/files/wobumulelusogojelum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3193/6674/files/87345968526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/56655156305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2102/files/skyrim_here_there_be_monsters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2476/1510/files/sipazujo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0486/0328/files/eminem_square_dance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3882/6908/files/bingo_template_3x3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/56579408710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8921/5129/files/gender_pay_gap_reporting_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1085/0979/files/62484702873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5893/6473/files/tracy_chapman_greatest_hits.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/mavaxusefeb.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_off00006dac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAC 5804 bytes
SHA-256: 4a48c3ee207648bf4b4f5f0134cc3bb550fbbe7b15738b95d2ca3c90954c7f0c
font_01_sfnt_off00008144.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8144 9980 bytes
SHA-256: 370a63458a651ebaa8ec61f9e42812ef67208b48545b42bb82a30ea2922dd78c

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