Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a023256ebd20cf3…

MALICIOUS

PDF

37.2 KB Created: 2020-08-15 16:44:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a6590039dbf268e39d9118c971a98935 SHA-1: d7040fcd08bae573982d3e474668d036086110b2 SHA-256: 1a023256ebd20cf31f67a6d65c6c44c5a27ec68c0e70110b87e65e661f83f44c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=bagpipe+sheet+music+for+itchy+fingers', is designed to redirect users to malicious content. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains, likely for SEO manipulation to obscure the malicious redirector. No scripts were extracted, but the presence of the malicious redirector and the link farm structure strongly suggests a phishing or malware delivery 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.cc/pify?keyword=bagpipe+sheet+music+for+itchy+fingers In PDF document text
    • http://mugisiw.ironmenfootball.com/uploads/1/3/1/4/131438641/ramolitizetijaxew.pdfIn PDF document text
    • http://files.elvirabasevich.com/uploads/1/3/2/6/132695865/votaxuxarox.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7287/9782/files/46504537993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9823/9132/files/picadora_de_pasto_casera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0450/1922/files/management_12th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vukanuzedatijaxugevune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1817/4107/files/50209787474.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1087/5815/files/8331166215.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/wizareta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6097/7048/files/ibm_websphere_application_server_tutorial_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89709194360.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004528.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4528 5428 bytes
SHA-256: 4d5c1540b7c3b2ae4b55ee4d00b94bf951aff6fac552e9e373e78d46198c4b9b
font_01_sfnt_off00005783.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5783 10180 bytes
SHA-256: e920c66765b639cfbde7b97bb872861ccfbf69e5ef1cc4b459e1889b647a4349
font_02_sfnt_off00007a18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A18 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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