Malicious PDF — malware analysis report

Static analysis result for SHA-256 7975a5a770425eb1…

MALICIOUS

PDF

43.1 KB Created: 2020-07-28 17:18:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03b8f1067f5a7d236cb36d7541c38322 SHA-1: a2dd525111d88a98244837b75afc91dc838cb949 SHA-256: 7975a5a770425eb1628dbd7515835c878dfe17143b1cd637f6db053cc2fd9554
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to lead users to a redirector URL, which is a common tactic for phishing or malware distribution. The ML classifier strongly indicates maliciousness, and the presence of many external links suggests an attempt to drive traffic to malicious infrastructure. While no scripts were explicitly extracted, the PDF structure and link farm heuristic point towards a malicious document, likely delivered via spearphishing.

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=ms+access+database+forms In PDF document text
    • http://files.curbsidewithlove.com/uploads/1/3/1/3/131398488/6218630.pdfIn PDF document text
    • http://files.tfgministries.org/uploads/1/3/0/8/130873735/getipebebus.pdfIn PDF document text
    • http://files.elkgrovelimos.com/uploads/1/3/2/7/132740412/7614292.pdfIn PDF document text
    • http://files.tigerscornerdaycare.com/uploads/1/3/0/7/130776775/mepad_jolev_devajuzabidon.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/1/0436/2852/7779/files/85432287047.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2637/5071/files/girizalad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2871/6439/files/sodatetuguge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9110/7752/files/garawetamimarigej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bibekejufalakudogaloseja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6076/3555/files/97181880093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9118/2243/files/maresu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8179/3698/files/lifulezijejowamameripufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3874/2430/files/peboporejajepos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5018/9478/files/binofijukezoguvawisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/xojevazokuzinawotopim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3136/2725/files/5393570033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4392/1820/files/wazoniz.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 4

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_off00006d1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D1F 4916 bytes
SHA-256: 47c9d63c8f632afd9bf6357565603ab9de236e7d2ad1f10836fb2dcbe160153f
font_01_sfnt_off00007dc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC9 9712 bytes
SHA-256: 7652a5073b180828787ce3642f11799cef30f7fdeef8a0411cd70b1b3cdae580

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