Malicious PDF — malware analysis report

Static analysis result for SHA-256 88e8d86fdab5298f…

MALICIOUS

PDF

46.0 KB Created: 2020-07-31 11:51:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 55b0bb15b252c49749d175264654c244 SHA-1: ce6d512c420b5211e692d2cac9c1f067bb635fb5 SHA-256: 88e8d86fdab5298f5b6e27325628e03043eb0dbfacd009c09996f868928903bd
194 Risk Score

Malware Insights

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

The PDF document employs a lure related to 'alopecia femenina tratamiento pdf' to direct users to malicious infrastructure. It utilizes a link farm strategy with numerous external PDF links, many pointing to Shopify, and a primary redirector at ttraff.com. The ML classifier strongly indicates maliciousness, and the document's structure suggests an attempt to manipulate search engine results for phishing purposes.

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=alopecia+femenina+tratamiento+pdf In PDF document text
    • http://files.omanroadshow.com/uploads/1/3/0/7/130776841/kasulojemuv.pdfIn PDF document text
    • http://files.bonelabradio.org/uploads/1/3/0/8/130874101/461220.pdfIn PDF document text
    • http://files.sunnyandsavvyrootsco.com/uploads/1/3/0/9/130969200/fukodidogeka.pdfIn PDF document text
    • http://files.newtonpresbyterianchurch.org/uploads/1/3/2/6/132680852/acbdc1e.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/1/0431/9258/2293/files/benipuposanixemikivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6182/1092/files/79363256219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6785/9359/files/gumuviza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0835/2679/files/velugidipaguketirujux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8093/1742/files/66602580083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/31241879575.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/9723761456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rixozuxixewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0917/1879/files/10700285054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/40861224270.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2688/9378/files/xusozelowedujumezudutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4539/6384/files/vuxexulovotisojalodowul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0682/7428/files/30295946908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1656/9500/files/gezitafis.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_off000073b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73B0 4900 bytes
SHA-256: 60a86f9e22daf3bcf0ece03b8112beb86c044b2797931d80534732703c3bfe9a
font_01_sfnt_off00008433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8433 11480 bytes
SHA-256: b06731116aef5d3002fa3235967c77bbe423a79548b286c58f8cb90b6119670b

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