Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b1a947991d69588…

MALICIOUS

PDF

46.7 KB Created: 2020-07-29 22:48:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 775bad76078ed008f29d603e4cfdee19 SHA-1: 82b2ffdb9c01e9aba5bc138e0ab671608adc83a6 SHA-256: 9b1a947991d69588a85e23479f6a52cde96b11591c6fe130acae6d86e8090710
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=aggression+definition+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body is heavily obfuscated and unreadable, but the presence of these links strongly suggests a lure to external malicious content. No scripts were extracted from this sample.

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=aggression+definition+pdf In PDF document text
    • http://files.buildhealthyseniors.com/uploads/1/3/0/9/130969045/8871714.pdfIn PDF document text
    • http://files.waterfrontlotspei.com/uploads/1/3/2/7/132710700/7589548.pdfIn PDF document text
    • http://files.finewineandesotericspirits.com/uploads/1/3/1/6/131637850/xetefewilugibisixe.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/1/0431/6830/1212/files/gemafej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3714/5753/files/xejifevofixulujagelalok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4743/5940/files/79663717079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5733/9800/files/faxizowuvurafekaxukiverox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7595/3049/files/xasibanizepiboxiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1261535930.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/62712876271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8549/6482/files/70276512975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1560/2337/files/siriramaxirosamuxufav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8180/9558/files/zuxeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2536/7194/files/bijigevidoxalofedumasane.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_off00007bb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BB9 4744 bytes
SHA-256: 45ae0559be9b842938e4b5f73513b2fe9190b9074767f8e29da692e16ed5feb1
font_01_sfnt_off00008be9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BE9 9896 bytes
SHA-256: 6d357e9022f2b8639e97a4fd02e7fd72b383a26f04e3d7c63eb7462ee24872bc

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