Malicious PDF — malware analysis report

Static analysis result for SHA-256 d42b9bbcae8303bc…

MALICIOUS

PDF

44.6 KB Created: 2020-08-22 04:26:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5edb181d60a3b6fea2faa2f604197d4a SHA-1: 3f27a6c002eb97408e24af5c0448cefe5a1b190c SHA-256: d42b9bbcae8303bc10edcec37021afb6db53cfdb3f1e78c256b1834050cc2360
194 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of numerous embedded links, a common tactic for distributing malicious content. One critical heuristic flagged a link to known malicious redirector infrastructure, specifically 'https://ttraff.com/pify?keyword=affirming+diversity+sonia+nieto+pdf'. Another critical heuristic indicated a PDF link farm, with the first URL being 'https://cdn.shopify.com/s/files/1/0438/3942/2626/files/backup_chat_whatsapp_dari_android_ke_iphone.pdf'. These findings strongly suggest the document's purpose is to lure users to external, potentially harmful sites.

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.com/pify?keyword=affirming+diversity+sonia+nieto+pdf In PDF document text
    • http://files.cileiaslittlecloset.com/uploads/1/3/1/4/131438616/toxasida.pdfIn PDF document text
    • http://tamevugev.nea-salina.org/uploads/1/3/2/6/132683056/rawadofuruje.pdfIn PDF document text
    • http://files.michellesmithlaw.com/uploads/1/3/2/8/132814476/3294821.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/1/0438/3942/2626/files/backup_chat_whatsapp_dari_android_ke_iphone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3297/5272/files/guwivapov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8610/1145/files/32080051052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5352/9753/files/malejibopifuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9148/5091/files/xutagererafakuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9080/2856/files/54495286381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/loxutiwijadewafulon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2640/7843/files/atal_pension_yojana_form.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 3

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_off00006e48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E48 5480 bytes
SHA-256: adc6d84ee2450908db2d5f6215d2ecc01a3a9a1275020b4874d2b069ec10a92d
font_01_sfnt_off000080db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80DB 10828 bytes
SHA-256: 284baa242d224f9b0fae73e8273f73e62e24ccdadfc736d972eb46593a982959

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