Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1b3e9ef8234ec5f…

MALICIOUS

PDF

47.7 KB Created: 2020-07-24 04:05:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6885840b9df348100ff5e181a3b1f322 SHA-1: 5db0eb9267acfb4c1f7268a54925132b5ea1796a SHA-256: a1b3e9ef8234ec5f7766bc89c2aafead1076ffa5f12f0903de7a0f24cdd19851
194 Risk Score

Malware Insights

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

The PDF document contains a malicious link disguised as a notification about an unavailable credit report. This link redirects to a known malicious domain, ttraff.com, which is likely intended to host further malicious content or phishing pages. The document also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, potentially for SEO manipulation or to obscure the true malicious destination.

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=annual+credit+report+equifax+online+delivery+unavailable In PDF document text
    • http://files.waltersegal.org/uploads/1/3/0/9/130969169/d57676.pdfIn PDF document text
    • http://files.mackinawvet.com/uploads/1/3/0/8/130873918/8324560.pdfIn PDF document text
    • http://files.yenzfacepainting.com/uploads/1/3/1/6/131637656/zoveratij_warusalu.pdfIn PDF document text
    • http://files.freckldsalvageshop.com/uploads/1/3/0/7/130739039/zikale.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/1/0427/5650/5756/files/51251291699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0555/8436/files/tutaxebabosalalowever.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6434/5247/files/83832132840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0595/9588/files/jivawiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/xubepikosigemeruxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1090/8572/files/80089556429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/53971680823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2990/6079/files/bibibafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3041/2450/files/36761316691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/tobatamomaneveputavowaki.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 5

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_off00007c6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C6F 5336 bytes
SHA-256: a448225d19ebcad64daa7d4ceffebbacc955a115120f0da0bf3ab00e6a27ed27
font_01_sfnt_off00008e9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E9B 10252 bytes
SHA-256: 6aa66fff146d3225b8e43a96f8a30acd8610a77559ed4011410e18265632c07e

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