Malicious PDF — malware analysis report

Static analysis result for SHA-256 2648790ffff3b890…

MALICIOUS

PDF

49.0 KB Created: 2020-08-01 03:29:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 20fbe432ad7123fe2ebd344a08d52ef2 SHA-1: 335a59d902c705327f290447d9395513323e0247 SHA-256: 2648790ffff3b890c89c58695ac3edff21ba3f4b0a9694ee786bdb7a5fb5b013
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be directing users to a malicious site via the embedded link.

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=reddit+night+mode In PDF document text
    • http://files.anandalaketahoe.com/uploads/1/3/1/6/131607029/kijurum_wenudoluta.pdfIn PDF document text
    • http://files.stjohnsecofin.com/uploads/1/3/1/4/131438784/zomozanuxike.pdfIn PDF document text
    • http://files.sandpiperstudio-photographybychristine.com/uploads/1/3/2/6/132682878/ba30cf679f8d.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/1/0428/9763/7535/files/43655384448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7189/6736/files/ark_survival_evolved_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1109/6221/files/birumafare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3032/2084/files/45029820860.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6197/6994/files/60840748536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3656/5923/files/jezizoteloratutapeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/zunajaraxilafufagok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2010/8455/files/zujonuditosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/fikuguvoluradagowofarevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8115/4214/files/25157087081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31321710084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6479/5044/files/what_does_thorns_do_in_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4636/2533/files/3969965204.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 6

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_off00008428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8428 4732 bytes
SHA-256: 35191d69e4ddfff7fcb60cf6be71a63d3968f6c3ffbe2b6cdf0acd044ccb1b3e
font_01_sfnt_off00009423.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9423 10300 bytes
SHA-256: af8b599308b92590631ac5f1d8155b579000c23833f043830fa9045ee304dcc5

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