Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a72551976dc340b…

MALICIOUS

PDF

43.2 KB Created: 2020-08-05 15:05:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ec7d6e0cd22f3fc47fac841bec43455 SHA-1: d4e141ef812674c3dcf0d0ef3ff0b4da7b90f15c SHA-256: 1a72551976dc340bcc48f2631ebd99db5c46d036e0341c91c013e7d794a716eb
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, a technique often used in SEO link farms to manipulate search engine rankings or to distribute malicious content. One of the primary links, 'https://ttraff.com/pify?keyword=list+of+all+polyatomic+ions+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting it is the intended destination. The presence of numerous links, including the malicious redirector, indicates a probable phishing or malware distribution attempt.

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=list+of+all+polyatomic+ions+pdf In PDF document text
    • http://files.niassestudios.com/uploads/1/3/0/8/130874318/b919e96e4ba.pdfIn PDF document text
    • http://files.cyspringstheatricalcompany.com/uploads/1/3/2/6/132682134/b8d9a.pdfIn PDF document text
    • http://files.bezenintdes.net/uploads/1/3/0/7/130776164/5094421.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/1/0432/1896/0545/files/subidejolezawowafojika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2890/5127/files/wironufezurujatolulijomim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pazutorigixasozesilax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4183/2615/files/12622299494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6649/8965/files/74055515865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2512/1959/files/old_forge_web_cams.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mutim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6899/7283/files/22434479256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dijev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7719/8229/files/suvodigadebojexug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/46420620761.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/sozirejefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6726/0582/files/jagepifirumisukuduludep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0177/4233/files/75591698843.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_off00006a9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A9B 5248 bytes
SHA-256: c40b5d9dd4bbbd6411ef8020abdfead3c00b8ded1476c56601bb45ba3c3bd898
font_01_sfnt_off00007c75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C75 10176 bytes
SHA-256: 09afc06ab3fdf648f0fd46a3dca9ffc65ada1113195f60f613f42986fe835e8b

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