Malicious PDF — malware analysis report

Static analysis result for SHA-256 68d0fbce968cacaa…

MALICIOUS

PDF

42.3 KB Created: 2020-08-10 03:36:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74bbec0b765e6110ec23ec4a23125a98 SHA-1: 3d3d60f61ac759c0d7884f6da4b65e0f9dd899f3 SHA-256: 68d0fbce968cacaadf87c6b023a690df12c38e3c777c5ea5ee7b0988e82a8da9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service known for malicious activity. The document body text and heuristics indicate a lure for a 'free download' related to a router, which is a common tactic for phishing or malware distribution. The ML classifier strongly indicates maliciousness.

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.cc/pify?keyword=d+link+dwr+921+4g+lte+router+pdf In PDF document text
    • http://files.shaqisoutthere.org/uploads/1/3/1/4/131437724/manidebujazas_xepobuxaladuw.pdfIn PDF document text
    • http://files.jesstracey.com/uploads/1/3/2/6/132696077/0fdc5739a3a.pdfIn PDF document text
    • http://files.nc3wilkesboro.com/uploads/1/3/1/4/131407406/jujuramidejakot-xinibubabikonex-lesob.pdfIn PDF document text
    • http://files.wakeforestfarmersmarket.com/uploads/1/3/1/8/131858791/5f943b94.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/1/0429/8833/9361/files/gedewupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/begixajibugaxakalugigarut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9237/6741/files/54211526141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8196/5461/files/didoletasekafakizetevena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70686619693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0577/1927/files/6455912061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0790/7752/files/saxon_algebra_2_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1725/6603/files/puzexagipotubifabuxuvezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9823/5289/files/gta_iv_tranier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9538/files/57953298857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9981/4056/files/sisabazodovajizupeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3314/8062/files/bullworker_bible_pdf_download.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 7

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_off00006738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6738 5404 bytes
SHA-256: dc161bc3d03afe6b6773c78f874520a4501d927273d31f29acc77cd14d7f9c14
font_01_sfnt_off000079d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79D2 10188 bytes
SHA-256: 0105658d6b7b994c73cda8693fed2a65fdb25569ee4c48bf27610c5acb6d4e07

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