Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e0c5d08e3ffbe12…

MALICIOUS

PDF

75.6 KB Created: 2020-07-24 21:29:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 82e7dbd15c75f9ef4b589221bfe858d9 SHA-1: f440e4ac432c5401e524fbecfae375c836b5467b SHA-256: 8e0c5d08e3ffbe1256556e73484ad159c3a61d89ebcf40cc0a029e512ea94b7d
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, identified as a PDF link farm. One of the primary links directs to a known malicious redirector, 'ttraff.cc', which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains text related to CSS, suggesting a lure to trick users into clicking the malicious links.

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.cc/pify?keyword=bootstrap+form+error+message+css In PDF document text
    • http://files.stickemupracks.ca/uploads/1/3/1/1/131163867/gotunugodise_dubewawaloxav.pdfIn PDF document text
    • http://files.signaturegames.eu/uploads/1/3/1/4/131409709/ziguku_tubufaliz.pdfIn PDF document text
    • http://files.gofmtogo.com/uploads/1/3/1/3/131398380/bonerulam.pdfIn PDF document text
    • http://files.sugarinthegourdband.com/uploads/1/3/1/4/131452935/sodefomipowod-jebivel-vixolumumejeb.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/1/0439/8202/8958/files/rexete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7857/3464/files/nizugawojuto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9953/8087/files/niniwane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/panofagokeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5783/9254/files/xarow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/vowunixixajajikiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1795/3702/files/wumep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6413/9669/files/8829647545.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3455/0173/files/72202156016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nisej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3853/8904/files/56229159200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/16809888657.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_off0000d733.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD733 4988 bytes
SHA-256: d8e0bf39f067fad7ba9bc589186a78695a8448829e3e1c5e71255b57362c2562
font_01_sfnt_off0000e831.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE831 17432 bytes
SHA-256: 89792da6a1b1ffb44dec2d7b9285b94f99e9f9d7452d580fe74b18a878aaf9aa

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