Malicious PDF — malware analysis report

Static analysis result for SHA-256 de68a65d59ed2a19…

MALICIOUS

PDF

45.7 KB Created: 2020-08-11 05:23:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 357986520d71526904030755d3a8607c SHA-1: d85270e3d8b2c6f97fb5caea680bf0ea76237217 SHA-256: de68a65d59ed2a19218cdfd2b1da7e80927a3163339852fa5353ecab4420adeb
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to ttraff.com, which is known malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'Arcgis 10. 5 installation guide pdf' and the malicious URL, suggesting a lure to trick users into downloading further malicious content. The ML classifier also strongly indicated maliciousness.

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=arcgis+10.+5+installation+guide+pdf In PDF document text
    • http://files.susandupontbaptistaartist.com/uploads/1/3/2/6/132683154/zewujirerosexe-gekilibo-sowiboja.pdfIn PDF document text
    • http://files.minds-eye-marketing.com/uploads/1/3/1/4/131410009/wezavuvogifazalokip.pdfIn PDF document text
    • http://files.youndtexcavating.com/uploads/1/3/1/0/131070561/fakixibiraf-zuselet-farixitaj-liwip.pdfIn PDF document text
    • http://files.whatsthequestion.online/uploads/1/3/1/3/131380397/lurud.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/1/0430/0803/2922/files/rabitomubipetasubodojedav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/6837/1623/files/positive_daily_affirmations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2541/3782/files/40988364357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2439/7989/files/iso_22020_version_2020_afnor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4740/3168/files/xefoxefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4279/8757/files/genonumutixifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/16717695476.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1514/3587/files/nukotofugor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9050/8960/files/7819497606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0416/4257/files/4769779740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/72504397973.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 5

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_off0000743d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x743D 5660 bytes
SHA-256: 0828d69fc6b164992dd1c901c0ffd5b2120c0dd7da4e2e3ba679dac903ca5a48
font_01_sfnt_off00008797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8797 10076 bytes
SHA-256: ad8cc115670b878f4f3b3410145e92e3debff781fb336c3aa3b6309041c74511

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