Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a309d9d100d744e…

MALICIOUS

PDF

46.1 KB Created: 2020-08-25 07:50:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 428d3587240cb20fc6db17e1bd44c142 SHA-1: 72d564164495bf821982e611b269481a4b687a39 SHA-256: 1a309d9d100d744eae48a1ffc09ffea828c311bb99c0809c816a9588946a2769
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is presented to the user as a download for an 'Office 2016 timeline template'. The document also contains a large number of embedded links, many of which point to Shopify domains, likely as part of an SEO link farm to improve the ranking of the malicious redirector. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=office+2016+timeline+template In PDF document text
    • http://files.parishoflongpointbay.com/uploads/1/3/0/9/130969403/fivefinowubavonin.pdfIn PDF document text
    • http://files.carlsbaddesal.com/uploads/1/3/1/3/131383661/8416451.pdfIn PDF document text
    • http://files.amazingchinainspection.com/uploads/1/3/1/6/131636689/zovoregewob_kopitejeseme_zezulubaxig.pdfIn PDF document text
    • http://files.worldfashionmedianewsarchives.com/uploads/1/3/1/3/131379678/7336342.pdfIn PDF document text
    • http://files.mairibudreau.com/uploads/1/3/0/7/130776864/ziwawajobigogefivane.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/1/0429/8440/7199/files/harcourt_phonics_practice_book_kindergarten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/citi_investment_research_reports.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2242/9858/files/civ_vi_steam_guides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3151/7605/files/7_days_to_die_mods_alpha_17.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6259/9584/files/94776887648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3358/4035/files/kibugesubolubavozute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70945418412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/2601/4362/files/fobolan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2525/3023/files/kizukututarivizabegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/adjectives_and_adverbs_list_with_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/zojupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/7454/5816/files/65636418024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4087/files/8154562352.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000077ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77CE 5396 bytes
SHA-256: 97839d7feabc4ddff80075cabb6d4ee37d49e68fe4295143fdc5a5ee1e2c90e7
font_01_sfnt_off00008a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A19 9880 bytes
SHA-256: 90820b6ee93ce07bc3e68e66b47081410b08150cdf86ee73495d57c61b162bdb