Malicious PDF — malware analysis report

Static analysis result for SHA-256 1325ebcb1b0eeae2…

MALICIOUS

PDF

47.4 KB Created: 2020-08-02 02:45:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c42f5af81b7b5784314b1ecc8101d3d SHA-1: f2a3ac54d346c2a4a9b5b2a61fe2d2c310735cfa SHA-256: 1325ebcb1b0eeae2efa800489fc047f0422f9f7254fcb268f157b2ae5fe0168e
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service identified as malicious. The document body, though heavily obfuscated, contains text related to 'conjugation of seguir' and URLs that appear to be part of a link farm designed to distribute malicious content. The ML classifier strongly indicated maliciousness, supporting the conclusion that this PDF is used for phishing or scamming.

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.ru/pify?keyword=conjugation+of+seguir In PDF document text
    • http://files.scatteringtheseed.com/uploads/1/3/1/4/131408970/f4a117bb827.pdfIn PDF document text
    • http://files.castirongrilllubbock.com/uploads/1/3/1/4/131453436/wewidikebota.pdfIn PDF document text
    • http://files.buffalo-hood-cleaning-services.com/uploads/1/3/1/3/131380343/toxogep-zagevifod-reloduge.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0234/7168/files/60015786850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4424/7451/files/c_card_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4474/8950/files/mazumukusiridulisarugetet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/92634508911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/wuxafunewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6713/8470/files/62106346472.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/tolazawuborutepabexojumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/6198534542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kemulubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0839/2353/files/how_to_bold_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0256/8599/files/45767794991.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6942 4884 bytes
SHA-256: e40656b68caefb7a5c1be3e08d2659bb68621021e2080537954841321259f13a
font_01_sfnt_off000079fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79FA 12552 bytes
SHA-256: ce378fb98425ef07e42fb96b12849e1fba3e5a04cb0735e2d5e34e4c6db56ed6
font_02_sfnt_off0000a2c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2C9 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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