Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7428d0b00b58cab…

MALICIOUS

PDF

34.1 KB Created: 2020-08-24 20:40:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8dd9ecacd516c240449cf4e074fcb121 SHA-1: 629268a05f2233e716092c311d837ff8213495ac SHA-256: f7428d0b00b58cabae628747ac0631c06cb115b45f6e3f50b03a9370450ef38b
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=deped+quarterly+award+certificate+template+editable'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including several hosted on Shopify. The presence of a 'Download Button' heuristic further suggests a lure to entice users to click on these links. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=deped+quarterly+award+certificate+template+editable In PDF document text
    • http://dawuxejop.tavisdupreez.com/uploads/1/3/1/4/131438304/migakiwutekufalawez.pdfIn PDF document text
    • http://files.lucyradford.com/uploads/1/3/0/7/130739718/nusaxago_venepopepo_zatemoxi.pdfIn PDF document text
    • http://files.ablessingboutique.org/uploads/1/3/1/4/131437680/5259319.pdfIn PDF document text
    • http://files.shopelevateonline.com/uploads/1/3/1/4/131437953/kelima-dodedal-zoxowu.pdfIn PDF document text
    • http://files.dorakrincyinteriors.com/uploads/1/3/1/4/131438604/sikomana-pifenawa-vajib-kimasopofa.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/1/0430/3526/3130/files/welumotapolunemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9664/3486/files/pisinesudorumerup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1974/7996/files/ubuntu_repo_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2041/9226/files/slate_digital_fg-_x_mastering_plugin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4190/7100/files/contemporary_cephalometric_radiography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3970/9589/files/sikerikis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4190/5045/files/wowapamol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4894/4284/files/national_minority_scholarship_form.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_off0000481c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x481C 5584 bytes
SHA-256: 1f54f308d2ed3894bc4c6f8a81b32f2c7521fdd30eb5949abed6874afcff64ba
font_01_sfnt_off00005b16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B16 9448 bytes
SHA-256: c05a40dc23154a1c10de28274f250be7380d21691892793089bbd7f7b77bf2e2

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