Malicious PDF — malware analysis report

Static analysis result for SHA-256 99397978163b1131…

MALICIOUS

PDF

42.2 KB Created: 2020-08-22 02:00:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a21acd79d810c6c402f961cce7bdb176 SHA-1: 60ed2e6e56cabb7e41d1f16e5c26d89c9b777f92 SHA-256: 99397978163b11314ac2cd6269f4bf8f18c0af61cc2e809158917cd845c16140
194 Risk Score

Malware Insights

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

The PDF document contains a lure for a free wedding invitation video template, but embeds a link to a known malicious redirector at ttraff.com. The document also contains a large number of links to external PDFs hosted on Shopify, likely for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, and the document body is heavily corrupted, but the presence of the malicious redirector is sufficient evidence of malicious intent.

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=free+template+for+wedding+invitation+video In PDF document text
    • http://files.anroflowers.co.za/uploads/1/3/2/7/132712447/nitaboxoso-rexakiwe-xurukotuxubakux.pdfIn PDF document text
    • http://vedifave.findingancestorsmadeeasy.com/uploads/1/3/1/4/131453197/kuvov.pdfIn PDF document text
    • http://mipateg.jvstuff.com/uploads/1/3/2/3/132303134/jamajisow-vevojipifamade.pdfIn PDF document text
    • http://pafubesel.alexandrahaleyart.com/uploads/1/3/0/8/130874679/2381894.pdfIn PDF document text
    • http://nobudox.newyorkstatemuzzleloadersassn.com/uploads/1/3/1/4/131482995/xunukajazi-fewaladuzef.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/1/0438/0744/1053/files/bebalepedogir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8375/0814/files/wubexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4986/8712/files/64110416845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9532/6887/files/lejopopeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6917/6992/files/basic_self_defense_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6161/4494/files/cleric_character_sheet_3._5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2368/7067/files/41230680877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3290/3829/files/novoduwogiwufugapedosak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/42228357160.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7787/6377/files/bigekuwezegekanoxuwi.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_off00006765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6765 5292 bytes
SHA-256: 6a60b2d75af51467a576b7f89ca9809a242d6d3a0d1b28f1391ed237213bccb1
font_01_sfnt_off0000796b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x796B 10120 bytes
SHA-256: 622ebc2dc49be1f7abc819ce6a6a2c397a88cdbcc27de84560e2047bce49fbe1

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