Malicious PDF — malware analysis report

Static analysis result for SHA-256 a40b4ed7e368d010…

MALICIOUS

PDF

39.4 KB Created: 2020-08-11 08:16:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 070212dbf22760b45e5c058d5066a8ac SHA-1: 8a9c9d154bbfa72b9a8394d7e33cfb17bba28b62 SHA-256: a40b4ed7e368d010291a33fd4aba9a43221d3889d93ebe7adeb571e7e2f2ec8d
194 Risk Score

Malware Insights

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

The PDF contains a large number of links, many pointing to Shopify domains, but one critical link to 'ttraff.ru' is identified as a malicious redirector. This suggests a link farm or SEO poisoning tactic to drive traffic to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack vector appears to be social engineering via deceptive document content and 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.ru/pify?keyword=libro+logistica+administracion+de+la+cadena+de+suministro+pdf In PDF document text
    • http://files.macongalinks.org/uploads/1/3/0/7/130738666/jagejibokena.pdfIn PDF document text
    • http://lixapa.fastbreaklacrosse.com/uploads/1/3/1/6/131606875/3364073.pdfIn PDF document text
    • http://wojobu.threeoakwines.com/uploads/1/3/1/8/131872055/8637597.pdfIn PDF document text
    • http://files.siyuanlipiano.com/uploads/1/3/1/1/131163969/954d1.pdfIn PDF document text
    • http://files.wichitarosesociety.org/uploads/1/3/1/4/131409274/574255cc67ac70.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/1/0429/0835/2679/files/pekulefizidofewawoxikibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3127/2346/files/gepugopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0067/6001/files/deux_arabesque_debussy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1079/3370/files/xazabolule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/lean_accounting_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7588/7523/files/74657014838.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zavokalozetaxolemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3983/4780/files/attack_on_titan_season_2_dubbed_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0498/4474/files/98508959038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7505/2454/files/juxotalativasokokug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3532/7653/files/lovopubig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7932/6110/files/vifavatisuxuso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2451/5229/files/74064800119.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 1

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_off000058aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58AA 5556 bytes
SHA-256: 41d06164c856aa3c85bd3ac35e8bfbece51f0cfdc46dfaab0cfee0e77f9acca4
font_01_sfnt_off00006b70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B70 10704 bytes
SHA-256: 76d4a6693775b3ab71bb1ef55550514a46e7bf6f582de1691ce1ebd701e73666

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