Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d8dd6f34c41824c…

MALICIOUS

PDF

279.1 KB Created: 2020-07-30 23:35:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62da79d1880d1d2e900783e5b44e9552 SHA-1: b4511b987dce65e711fce5dd987088c897ab9494 SHA-256: 1d8dd6f34c41824c8bee9c083abfbc9b90fe62544501637796a30f5ec4f8dd5e
134 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link to 'ttraff.com'. This URL is likely used to lure users to a malicious site. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9928

Heuristics 4

  • 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.
  • 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=compendio+del+catechismo+della+chiesa+cattolica+pdf In PDF document text
    • http://files.shilohchristianband.com/uploads/1/3/1/4/131406149/52464ecb5072888.pdfIn PDF document text
    • http://files.traumarecoverybc.com/uploads/1/3/0/8/130874250/dae0ca5c657.pdfIn PDF document text
    • http://files.takeyourchancetravel.com/uploads/1/3/2/6/132682640/61b85977d6b459c.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/1/0431/2875/0241/files/pilixubeweregasulevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6513/0658/files/88120603290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2131/0880/files/84690933603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8804/4442/files/naleg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9199/2480/files/deviseworeboje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/14334189682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6869/4423/files/14828669340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7211/files/joxok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0298/5621/files/legaxujutuzotenuxutul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7496/7965/files/widajaximul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7099/4085/files/mebowagipif.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_off0004141d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4141D 5108 bytes
SHA-256: 5da87e23ec7fe29b89598a65a52230da91843ffdc370783ce1c60b143f31627e
font_01_sfnt_off00042549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42549 12180 bytes
SHA-256: 69e0ce95fb6758b5d9fe2f127a592365dffeb042e2d63ac5f92c05c8fabd2e7c

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