Malicious PDF — malware analysis report

Static analysis result for SHA-256 61d7a7d6445ffcec…

MALICIOUS

PDF

40.1 KB Created: 2020-08-10 03:55:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e8af5efe8131942c32dc4fec1754fac SHA-1: a3580a2ef2ce0c4cd005e6960d0af9c2c0a94b7e SHA-256: 61d7a7d6445ffcec200531d2e41b643ca31d0fdccfec01113b8aa9ed9cdfa15c
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text suggesting a lure related to 'asthma medications list pdf'. The presence of numerous embedded URLs, including a critical redirector, strongly suggests the intent is to lead the user to malicious content.

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=asthma+medications+list+pdf In PDF document text
    • http://files.docksideengraving.com/uploads/1/3/1/3/131380440/6611840.pdfIn PDF document text
    • http://files.quasilocum.com/uploads/1/3/1/3/131380733/dazepip-tefifipipewesex.pdfIn PDF document text
    • http://files.stevendchesterphotography.com/uploads/1/3/1/1/131164355/pewarowa.pdfIn PDF document text
    • http://files.inmanhardware.com/uploads/1/3/1/4/131438758/boxofadaxonuno.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/1/0437/3784/1813/files/vikizufewekozanozexaxafu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/3717908468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3373/8911/files/29633022224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/fopino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2631/6455/files/immunisation_schedule_qld_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7677/2250/files/49723366941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4388/9058/files/gupaligiponisuxekofekus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5212/1762/files/holy_paladin_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5591/3879/files/desoroleti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/megoxidojixugapilanaseg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuwuvedalolavotidexetugom.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 8

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_off00005f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F47 5288 bytes
SHA-256: d8128e37058ffdb2de7be1f9c6ab12479a8015bcafab81b446f1bcdac4a0fbac
font_01_sfnt_off00007123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7123 10128 bytes
SHA-256: d87ec3be82018c1fb8e12eb18cf9b13e954236666ef76b9c3159d6dea73e0ac5

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