Malicious PDF — malware analysis report

Static analysis result for SHA-256 67510314fdc42185…

MALICIOUS

PDF

42.5 KB Created: 2020-08-14 01:05:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 14808262501f38d10f79f1d3e392b681 SHA-1: 49d82f1485ecb744392ac198b8c1e04d973ab683 SHA-256: 67510314fdc421855b2d0a0c01a056c4282df17f14ab9665b21edad0a5209231
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links to external PDFs, many of which are hosted on domains associated with SEO link farms. The primary redirector URL, 'https://ttraff.cc/wb?keyword=hands%20on%20artificial%20intelligence%20for%20iot%20pdf%20download', is flagged as malicious. The presence of a 'download button' lure and the ML classifier's high confidence score further indicate malicious intent, likely to distribute further malware or engage in phishing.

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.cc/wb?keyword=hands%20on%20artificial%20intelligence%20for%20iot%20pdf%20download In PDF document text
    • http://files.justinlambmusic.com/uploads/1/3/0/7/130775049/radufitufubagux.pdfIn PDF document text
    • http://files.southamgallery.com/uploads/1/3/2/3/132302963/5468970.pdfIn PDF document text
    • http://duleve.foodfightdenver.com/uploads/1/3/1/6/131637419/gasofakotuxisulas.pdfIn PDF document text
    • http://files.harrietlevinmillan.org/uploads/1/3/1/6/131607164/tamotu.pdfIn PDF document text
    • http://files.suitlandhsfeasibilitystudy.com/uploads/1/3/1/6/131606159/1611714.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/1/0429/2627/6771/files/49865083806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7405/0458/files/37027707734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8113/8343/files/10945660174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4914/8838/files/fan_blade_design.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9423/7589/files/woxupexopubujuviruja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9158/files/murasoxilubi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3446/7752/files/zulamonero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6529/5526/files/holy_bible_in_bengali_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9314/8313/files/19380657704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/1368972283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3337/0522/files/download_converter_bmp_to.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_off000067f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F2 5376 bytes
SHA-256: c7aad0e498db69ede887f7640dbf836cf5ed556f90ea8604af2f1888c4f493a3
font_01_sfnt_off00007a5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A5A 10000 bytes
SHA-256: 354b4f17a8ae099e567f0528a424c32ed83490269858fda717793d2400bd15f5