Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa54f8cea7c802a0…

MALICIOUS

PDF

41.2 KB Created: 2020-08-03 01:19:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9326b04419dccc09d4e5f73a7409670 SHA-1: d7be11de532c755b3beb2197440ea51b5fdfbf1e SHA-256: aa54f8cea7c802a047d6a06a7d8d00b54906da4d012b17eba8d297b20779ce2d
202 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. It also exhibits a link farm pattern, with many links pointing to Shopify domains, likely for SEO manipulation. The document body contains a call-to-action phrase, suggesting a lure to click the malicious link, which is further supported by the PDF_SEO_LINK_FARM heuristic. The primary malicious IOC is the redirector URL.

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=seamoth+depth+module+mk2 In PDF document text
    • http://damojofis.chicagoartizen.com/uploads/1/3/0/8/130873951/765376.pdfIn PDF document text
    • http://files.catonthecorner.com/uploads/1/3/2/6/132695517/vebavefapidefexaj.pdfIn PDF document text
    • http://files.amyslovelylips.com/uploads/1/3/0/7/130775808/juvazifixixuv.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/1/0428/3580/4319/files/international_financial_management_eun_7th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5791/3754/files/kisamulugawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8065/5775/files/vekunerubusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2987/9194/files/1148086529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5282/5767/files/pallet_jack_repairs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9806/2491/files/anthony_brown_worth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/femos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6573/7370/files/kadetewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66541571973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19189676900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/midanoleluzin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/jupusuxigusafaja.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 3

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_off0000647f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647F 5224 bytes
SHA-256: 9d4e4a6c086ac8370ff91356bbb442c3fc5294dc8f7b89fdbd01e4098b99cf33
font_01_sfnt_off0000761d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x761D 9816 bytes
SHA-256: e2cab8cf12efe936c6a4044ea71d603d464a1ec54ee225b376dca36cc5fe521c

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