Malicious PDF — malware analysis report

Static analysis result for SHA-256 254ed75ebf38e7fe…

MALICIOUS

PDF

40.8 KB Created: 2020-08-09 04:05:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a62590465b91ec33b793575ad48426e SHA-1: 5b6f12d89e61ae174f59e53009b87d42ad7520e0 SHA-256: 254ed75ebf38e7fe2acccf145dd9636ffcd4a16d077ea11104922242e2e2adc3
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are part of a link farm designed to appear as legitimate content. The primary redirector URL, https://ttraff.com/pify?keyword=advantages+of+online+advertising+pdf, is flagged as malicious. This suggests a phishing or scam attempt where the document is used to drive traffic to malicious sites, likely for further exploitation or malware delivery.

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.com/pify?keyword=advantages+of+online+advertising+pdf In PDF document text
    • http://bogikoj.mathstart.net/uploads/1/3/1/8/131871721/ripejixij_pazijometev_kofezebutororo.pdfIn PDF document text
    • http://files.terrievoigt.com/uploads/1/3/1/3/131379590/gadawimuse.pdfIn PDF document text
    • http://files.amys3dayweekend.com/uploads/1/3/0/7/130739117/topuwutezifedarima.pdfIn PDF document text
    • http://files.editorsink.net/uploads/1/3/2/8/132815002/4871493.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/1/0431/6705/6028/files/suniparijojivosina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/19355022479.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5729/9099/files/english_to_bengali_dictionary_free_download_full_version.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5040/1943/files/xuviwadisekezigag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2784/9639/files/64153406310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3997/3788/files/nedenivusubopezaweditomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6272/8606/files/nomawumogadatozekunope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6022/3397/files/the_good_morrow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/54111959620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/5981/7117/files/antigeno_prostatico_valores_normales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/dexikoninufab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7658/2560/files/anfibios_de_costa_rica.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_off0000617d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617D 5256 bytes
SHA-256: ea7a7662254b2e47fc5479f904bd6dcd1410a009e3fcd4a6d09c39d5d015f827
font_01_sfnt_off0000737b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x737B 10096 bytes
SHA-256: 59bbd2d22bce32c4624febe25dae49e00ac3a71fde975da9f3f3e7b0c585c9a3