Malicious PDF — malware analysis report

Static analysis result for SHA-256 33489ad7e47955bb…

MALICIOUS

PDF

45.3 KB Created: 2020-08-14 11:02:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2fc97d0e666ca6f15b83498dfbb2982e SHA-1: fe5a142d92b05b2ed0e5f72085c71b7dd1f8bb96 SHA-256: 33489ad7e47955bb0dc12a24b398c763ca8d48d6af45412c1b1edb0b1546303a
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as a construction scope of work template, but the primary link redirects to malicious infrastructure. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=construction+scope+of+work+template+excel, which is flagged as a malicious redirector.

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=construction+scope+of+work+template+excel In PDF document text
    • http://files.martineaxelrod.com/uploads/1/3/1/4/131407572/voxikateba.pdfIn PDF document text
    • http://files.lkonsite.com/uploads/1/3/0/8/130813427/8323588.pdfIn PDF document text
    • http://files.nigellewisphotography.com/uploads/1/3/0/8/130814387/pupomefum-gubamepexaponod.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/1/0431/1128/4885/files/50109387717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9980/0217/files/rita_pmp_exam_prep_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8003/1137/files/watorazipamizabitoweg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/riwemabosemuridaredexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6792/4899/files/wulelerabovagixopegojuwim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2492/5351/files/6991806597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/dutimolepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4185/7448/files/kuzujaxodafowimot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9548/1750/files/tinepimetixubigabo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0143/0695/files/11036342132.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/cambio_climatico_en_el_mundo_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/jesusofodobijagibu.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 6

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_off000073c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73C8 5292 bytes
SHA-256: cdc391b72827c03102be099eab0a81cf855f145994bcc95a03541d79ea8d9abf
font_01_sfnt_off000085ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85CA 10152 bytes
SHA-256: f24eadd5af6d24809dead66ddf575bc5af5c024866a3aacbc5974a0053fc4ed2

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