Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4e241b31ceb1c8f…

MALICIOUS

PDF

864.3 KB Created: 2020-08-21 11:14:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56a18cfdf09ff0d679953cf012df4b67 SHA-1: 9c9ceb24f808a8a310b6d9c82e6be098aaf24bd6 SHA-256: a4e241b31ceb1c8f73c46eca8c25bad5967383b690212a27ef5e94080498899a
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. The embedded URL, https://ttraff.com/pify?keyword=hair+style+pic+boy+2017, is the primary indicator of malicious intent. While no scripts were extracted, the presence of this malicious URL strongly suggests a phishing or malware delivery attempt. The document body appears to be heavily obfuscated or corrupted, preventing analysis of its content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8837

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=hair+style+pic+boy+2017 In PDF document text
    • http://dapefa.utahstudentnurse.org/uploads/1/3/1/4/131438304/vezoziwofu-nobizobenofusu.pdfIn PDF document text
    • http://fadez.maggiegreenwayart.com/uploads/1/3/1/4/131438003/2076b.pdfIn PDF document text
    • http://wedimikak.danielledesnoyersphotography.com/uploads/1/3/1/4/131406013/dc8921d3e28b.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/1/0435/3510/6203/files/88100501660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8831/3506/files/aadhaar_download_in_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0504/8994/files/gajuwoxibid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/1340/1764/files/fronted_adverbials_word_mat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8572/5857/files/namumasababewarulagexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5813/files/40062272608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7325/files/wupomikaguresu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46946939033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4950/8250/files/driver_etc_hosts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7015/2088/files/15917017896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0465/6790/files/36771342610.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/mulesejogoretekaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/jasinepexuzufosozipi.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000d3689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3689 5536 bytes
SHA-256: 5dcee9700d5d5f51e530e965e4a0390c60d586b0f17a00445535cca5ce472bc7
font_01_sfnt_off000d497c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD497C 10504 bytes
SHA-256: 24005db908f4906d837c1b3ee96f4853d7b737e5a7d47f4653a676e61f82db6f