Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e711ba5fb1cb40f…

MALICIOUS

PDF

42.1 KB Created: 2020-08-03 02:40:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ff838a1d8ab15916efa24567fea3d580 SHA-1: c356a491b4fcce827a39d0bda7a5b068efca0427 SHA-256: 8e711ba5fb1cb40f27783768ebc50906b212d84db5361edc5bb930d04e2a3060
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a significant number of embedded links, identified as a link farm. One of the primary links directs to a known malicious redirector service, ttraff.cc, which is likely used to obfuscate the ultimate destination of the attack. The presence of numerous links, many pointing to Shopify domains, suggests an attempt to manipulate search engine results or to host a large number of lures. No scripts were extracted, and the document body was largely unreadable binary data, but the heuristic firings strongly indicate a malicious redirection scheme.

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=piscatoris+hunter+area In PDF document text
    • http://files.amycvena.com/uploads/1/3/1/3/131380951/xowojeno_fakumelof_xafexixumagil_degosemo.pdfIn PDF document text
    • http://gufig.promolusitano.com/uploads/1/3/1/0/131070476/nogolexog.pdfIn PDF document text
    • http://files.aprilklasenauthor.com/uploads/1/3/2/7/132712483/gujadif-xolukejevuvi-pibubixowivuduj.pdfIn PDF document text
    • http://files.thesoulsalchemy.com/uploads/1/3/0/8/130814687/gonuror_jelegusugajo_gujisanolose_pugijuzepe.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/1/0428/1214/5823/files/katepifutesemupoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3182/1473/files/19993746760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/74239689393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8001/5271/files/4042206946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9062/5191/files/fikimagalebub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3444/1885/files/uninstall_node._js_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2385/9873/files/sibiwuras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/xfinity_uc_davis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6463/1195/files/96378147976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nozawilod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/titigabibuzumazavuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/16481260084.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 3

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_off000068a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A4 4856 bytes
SHA-256: 3e5913c8199d2f91d3c63c36b6c31d4209a5f4e1266bb6415f94abe4a6dde8b1
font_01_sfnt_off00007921.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7921 10064 bytes
SHA-256: 554a852ed8d5c28a1e1acd6c34dd544969741c5a061797968578111bf8daa716

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