Malicious PDF — malware analysis report

Static analysis result for SHA-256 674e01514ec7f814…

MALICIOUS

PDF

52.3 KB Created: 2020-07-22 23:42:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3b6898395cc12be5e8c2c3937b5f7838 SHA-1: f95890dab24d3c2cf6e16d782672bcff6c0d6ec9 SHA-256: 674e01514ec7f8147eeb54e453a2efaeaad57cdad005ca4e7143921f2455b43d
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links to redirector infrastructure, specifically pointing to 'ttraff.com', which is flagged as malicious. The document also employs a social engineering lure, instructing the user to install a browser extension or update to view content, a common tactic for credential theft or malware installation. The presence of embedded links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=addition+activity+for+grade+1+pdf In PDF document text
    • http://files.windycityknittingguild.com/uploads/1/3/0/7/130775292/9997317.pdfIn PDF document text
    • http://files.awakeningthedivinewithin.com/uploads/1/3/1/6/131606025/68c0d68e68.pdfIn PDF document text
    • http://files.crestonflatsstables.com/uploads/1/3/0/8/130874286/46d9965.pdfIn PDF document text
    • http://files.independantplastics.com/uploads/1/3/2/6/132681743/futafilam_mawizoxabov_luwepeliviro.pdfIn PDF document text
    • http://files.otterworksusa.com/uploads/1/3/1/4/131437351/tasegus-rekafi-zeganusisaj-jigavulef.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/1/0433/0687/7080/files/78985131446.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2068/1377/files/76852571596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8324/2401/files/21103797808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/sigipigarewesito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/89120948070.pdfIn PDF document text
    • https://regaxunizi.files.wordpress.com/2020/06/dojudemurebojovegakag.pdfIn PDF document text
    • https://godipuxijum.files.wordpress.com/2020/07/pedazofumemojevikebonu.pdfIn PDF document text
    • https://zizojika.files.wordpress.com/2020/06/46969993266.pdfIn PDF document text
    • https://bemurizoz.files.wordpress.com/2020/06/40471271889.pdfIn PDF document text
    • https://dolajova.files.wordpress.com/2020/06/36076094702.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kilezolesosobusafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0673/0138/files/87445220384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27947700243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7560/0535/files/27791146989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/tunoxoluramosexavar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8646/2620/files/70501101687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/357875875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9070/6589/files/64250897268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1395/6006/files/62685700935.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008639.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8639 5104 bytes
SHA-256: c0eca126a842bfd025bb8beffb7c643a966ede787b956792c80e3d0a8554c45f
font_01_sfnt_off000097ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97AC 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off0000a03a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA03A 10028 bytes
SHA-256: 5a2f87d7adc89a680ef82cf96d6df4024a4a54b9e61ce17254cd7d4eca314079