Malicious PDF — malware analysis report

Static analysis result for SHA-256 882aa8ec41a727c9…

MALICIOUS

PDF

60.5 KB Created: 2020-07-24 21:31:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 55aa034800f5b68903672a83dcb935a2 SHA-1: bf56b0745ed6c7683ceebc258dc651cd8ed79563 SHA-256: 882aa8ec41a727c97eb5f6af7ae43b493c8b23a5c07af5a5cf0065a63b1b3023
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting an attempt to distribute further malicious content or phish users. The ML classifier strongly supports the malicious verdict. The embedded URLs, particularly the one pointing to 'ttraff.com', are indicative of a redirection scheme to potentially malicious sites.

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=albert+camus+the+plague+pdf In PDF document text
    • http://files.francesandkevin2019.org/uploads/1/3/0/7/130740521/gopidomuva.pdfIn PDF document text
    • http://files.casparmckeever.com/uploads/1/3/1/4/131438449/ca906f12.pdfIn PDF document text
    • http://files.superjumppartyzone.com/uploads/1/3/0/8/130874668/13c3a2.pdfIn PDF document text
    • http://files.ucfootball.co.nz/uploads/1/3/0/7/130775776/757eb.pdfIn PDF document text
    • http://files.tatcor.com/uploads/1/3/0/7/130739287/170a8d3.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/1/0430/3713/0914/files/1824046893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zosakasebiribo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5670/9273/files/88647030472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5654/6463/files/disepotufove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/kodiwebezup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40313354442.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zonamanasalusowalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3380/5471/files/tafunejinanororelujifised.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6237/files/jisebupotokarikagefara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7189/files/76350153323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bewewolifokolugetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3680/3233/files/98980573343.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_off0000b02b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB02B 5316 bytes
SHA-256: e87ff5096831704a05262bbb8484885e89cd8249c297d7258197043b99431696
font_01_sfnt_off0000c23c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC23C 10268 bytes
SHA-256: caeb563587f92bc18011a40f328bb18ba8b1bd41ee28eb5a74f24cefafb7c727

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