Malicious PDF — malware analysis report

Static analysis result for SHA-256 1978bad419a5882b…

MALICIOUS

PDF

39.7 KB Created: 2020-08-14 18:44:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 376cd115997a600666e6046b545fef50 SHA-1: 6a7daef31a6860aae2c090e589cf44c05f49be47 SHA-256: 1978bad419a5882bea35583b789abe052b2469fa32789825e4161c826424ae2e
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as a link farm for SEO purposes, but many redirect to malicious infrastructure. The primary redirector URL is `https://ttraff.cc/pify?keyword=arcgis+10.+7.+1`, which is flagged as malicious. The ML classifier also strongly indicated maliciousness. The document body contains obfuscated text and URLs, suggesting an attempt to disguise the malicious intent.

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=arcgis+10.+7.+1 In PDF document text
    • http://files.nataliebratcher.com/uploads/1/3/1/3/131381288/zidinetudor_wezavibovin_memak.pdfIn PDF document text
    • http://files.achieve-st.co.uk/uploads/1/3/0/9/130969354/3154054.pdfIn PDF document text
    • http://kugavo.churchwellness.net/uploads/1/3/0/8/130874588/jijufipuko_pikora.pdfIn PDF document text
    • http://files.durhamroofing.org/uploads/1/3/1/4/131455543/c60c4335dff7e62.pdfIn PDF document text
    • http://sosose.valiantfew.org/uploads/1/3/1/4/131437502/wapijevaxo-posaza.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/1/0435/2491/5359/files/dizuluzofiluwuted.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8667/6117/files/morofeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/20988872552.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4614/2106/files/50334610308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8962/5250/files/lorebemupuxazefiromade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4742/9031/files/77873924121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6462/2242/files/envato_elements_mailchimp_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2131/1898/files/nivufadagopifot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3767/7989/files/21269103918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8067/8564/files/81849717953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/8635564420.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_off00005f6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6D 5020 bytes
SHA-256: 3d10336d07b704e91a68264bcf2894f67231edec1cb51719a938a2f2899e48fd
font_01_sfnt_off000070a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70A7 9856 bytes
SHA-256: 79190b7bd9b179842cac3f0fbded1f207274e167e0cd575ed4a85e5620184433

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