Malicious PDF — malware analysis report

Static analysis result for SHA-256 adbd928537930791…

MALICIOUS

PDF

37.4 KB Created: 2020-08-02 21:40:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a8ac422f6e4cd9d1835f67d92bf5bf12 SHA-1: cde3d48c21e47a602ab01a84d482852ee08356ef SHA-256: adbd9285379307913e2fe934a63b32c4c26c8a8781b31e8edc8cdd1c4088d9be
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=air+o+swiss+humidifier+manual'. This URL is designed to redirect users to potentially malicious content. The document body, though heavily obfuscated, contains references to this URL and other Shopify links, suggesting a link farm or SEO poisoning tactic to distribute the malicious PDF. The ML classifier also strongly flagged this PDF as malicious.

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=air+o+swiss+humidifier+manual In PDF document text
    • http://files.letrim.com/uploads/1/3/1/3/131378852/1041228.pdfIn PDF document text
    • http://files.numinousmusic.com/uploads/1/3/0/7/130775021/saxefalovud.pdfIn PDF document text
    • http://files.msjohnstononline.com/uploads/1/3/1/4/131437464/zumemaju.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5244/9444/files/jofaxazinapubop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3436/1503/files/18623947624.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/zeguloposevur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/usa_holidays_calendar_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5449/6935/files/dezibal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1223/5159/files/wakanunob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3059/4204/files/90666581858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0774/5958/files/k_episode_1_english_dub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2766/8890/files/75842221742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/54013005928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6565103434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9050/1020/files/nixoza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/pojogunegazozexu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48A8 5028 bytes
SHA-256: 9d6552aaf9f322158ceb9b5099c84d6810604c97f493b9b0e8f33e34c8591f51
font_01_sfnt_off00005995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5995 9608 bytes
SHA-256: ab743692401baed0fa44a24ae96667e65ee6551954058c9a69efde93fb546a0a
font_02_sfnt_off00007a59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A59 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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