Malicious PDF — malware analysis report

Static analysis result for SHA-256 612d6e8402860b35…

MALICIOUS

PDF

65.8 KB Created: 2020-08-11 07:21:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b1343fa2d94bddec11ca19fc51df66de SHA-1: 562c314d3b6ee3dbaed3e850ecdba11d6a43e866 SHA-256: 612d6e8402860b352d327750b2e57b4f5329104007e3d50ac19ada6935039e40
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links pointing to redirector infrastructure, specifically 'ttraff.com', which is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary purpose is to redirect users to malicious content, likely for phishing or to download further malware.

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=valores+sociales+pdf In PDF document text
    • http://files.heartlandcustomfarmtoys.com/uploads/1/3/0/8/130814101/bavijowuwazi.pdfIn PDF document text
    • http://files.uptownchurchcharleston.org/uploads/1/3/0/7/130776142/07f64f5c4066.pdfIn PDF document text
    • http://files.sportsfactory.shop/uploads/1/3/1/4/131409090/36796.pdfIn PDF document text
    • http://files.t3northloop.com/uploads/1/3/0/9/130969522/gelixagikuzeki_xotedaru_tatupiguwazus_rawejevag.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/1/0433/3695/8104/files/bovudaxuxupiviteb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5706/9721/files/sixegebusibireta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5939/6251/files/28472596487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3633/6540/files/bagipugumivuzogodazujoner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/95681320268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0428/1511/files/17725043743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3203/4976/files/the_three_musketeers_by_alexandre_dumas_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/wafija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8403/7792/files/history_of_black_body_radiation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6790/6979/files/mugazulugipokadeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/tafajebidizoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1390/6327/files/79209846500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9832/4638/files/waxosejazusivu.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_off0000c2bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2BD 5116 bytes
SHA-256: d758b45d6c790bd7813b06024cfdc53e48ae58146097c2adc0c7de207d5549bc
font_01_sfnt_off0000d431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD431 11256 bytes
SHA-256: 62ada384eabd6f33f04066c9e332e6af44cf6f3d05b1db1e102c75845a72ee18