Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a0d57e096aed11d…

MALICIOUS

PDF

38.4 KB Created: 2020-08-04 02:05:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f5ec3b03f02e75cd534a974ad5fe0c64 SHA-1: bbb50614889eff3477ccd43b28dab245b0a79103 SHA-256: 3a0d57e096aed11dc413c5ba0b3c9b9e6b72310b3b30822e3e886427be5c00a5
194 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the same lure text and URLs as the embedded links, suggesting a coordinated effort to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.

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=the+science+book+big+ideas+simply+explained+pdf+download In PDF document text
    • http://files.myscentsandessentials.com/uploads/1/3/1/3/131398220/1042425.pdfIn PDF document text
    • http://files.millhillarts.com/uploads/1/3/1/4/131437984/wefukofasas.pdfIn PDF document text
    • http://files.waco-review.com/uploads/1/3/0/7/130776483/kemapanamobikipos.pdfIn PDF document text
    • http://files.tristatecamp.com/uploads/1/3/1/4/131437584/nafixid.pdfIn PDF document text
    • http://files.freeshawnali.com/uploads/1/3/1/0/131069781/rokomapizuj.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/1/0432/5857/7046/files/jugogajav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0545/2193/files/99887778737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0326/4667/files/biology_notes_spm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/motorola_surfboard_sbg6580_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovovowegafakaroseras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8036/5720/files/kotovuzuninowoliravur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9315/5237/files/tosodesivixaronugijazori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5671/7205/files/liver_cirrhosis_diet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4624/8358/files/bufosaru.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_off000055c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55C5 5888 bytes
SHA-256: 668d1364a4b817f96a8ab50747cb94f662b9932c6d7ce51d29e5178e7ec42ce4
font_01_sfnt_off000069cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69CC 9576 bytes
SHA-256: 4a4d0ab96f5139ef4fa47f49c49ce36180d5b3d83c27c57be16bc871c8633222

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