Malicious PDF — malware analysis report

Static analysis result for SHA-256 069795d25c6f9cdb…

MALICIOUS

PDF

42.3 KB Created: 2020-08-09 08:27:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b3e3ad9a15a37c0fa32b8125383fcb2e SHA-1: ec8c063f5a11110864ccc4800f64e2fdfe83459e SHA-256: 069795d25c6f9cdb0afd3c4404d83ceb352d28e4fa9d1a92a90a02c90db6ccd0
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'https://ttraff.ru/pify?keyword=cito+begrijpend+lezen+groep+8+pdf'. This indicates the document is designed to redirect users to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of numerous links, including a link farm, suggests a phishing or malware distribution attempt.

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=cito+begrijpend+lezen+groep+8+pdf In PDF document text
    • http://fizep.otto-and-olive.com/uploads/1/3/0/9/130969742/c880a7ad8af95.pdfIn PDF document text
    • http://files.debsoutherland.com/uploads/1/3/1/4/131453250/mikotajogeromuzerej.pdfIn PDF document text
    • http://files.laurieann-ranger25.com/uploads/1/3/0/8/130814935/divibulamanof.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/1/0430/8572/5857/files/redemption_manual_5._0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/90582802408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8774/9525/files/52960259052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/86309338130.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8866/7034/files/nugufalufaretavekoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8549/files/84257542147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5744/6038/files/87203379199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekugoxozeritazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5627/4339/files/39596878082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6095/2229/files/62058924553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0304/3230/files/kimifuvemixixuxoradatajuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7265/1413/files/xirelapirapif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6517/files/numagawazo.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_off00005e8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8D 5184 bytes
SHA-256: 529e2b8ee1cdf2f04e858bbb4ec2ee317761977d8a77f9b4fa1c6b910354940a
font_01_sfnt_off0000704c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x704C 13776 bytes
SHA-256: d21d8598352f284a40722fcf444bd9c68cf02d89d2c10ea84c4c74b0eec52426