Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e9b2b6ba7d44d37…

MALICIOUS

PDF

41.4 KB Created: 2020-08-17 12:23:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a2cb34ede92a4cab0772e6083e1a09e SHA-1: 05e5fba78c4c7b43a89f6958db16af76d4ca5457 SHA-256: 8e9b2b6ba7d44d37887e9eaa82709ec21b46641699540c50c287756d77c9aeef
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to malicious content. The document body, though heavily obfuscated, contains the same redirector URL and several Shopify-hosted PDF links, reinforcing the lure.

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=cognitive+development+questions+and+answers In PDF document text
    • http://daluderom.animalmystic.org/uploads/1/3/0/7/130776330/4361504.pdfIn PDF document text
    • http://vekag.intuitiveaim.com/uploads/1/3/1/6/131636725/womivoselal-tufixibefosip-xolorivatozenaz-levad.pdfIn PDF document text
    • http://muwiw.lawncarenewburgh.com/uploads/1/3/2/8/132814930/8ff47f.pdfIn PDF document text
    • http://files.bowlrevs.com/uploads/1/3/0/9/130969032/3099f3f5f.pdfIn PDF document text
    • http://files.kamelicounselling.com/uploads/1/3/1/6/131636914/ramuzo_lurinenixidekob_nodamef.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/1/0429/4259/5239/files/7692310447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9676/8673/files/situravotebevafaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5396/3678/files/xslt_transform_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7424/7069/files/tisiforipejizonade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/pagbasa_ng_abakada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7985/0397/files/sociology_textbook_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2558/7609/files/60750974486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9112/4643/files/boxutudowozoned.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1045/7753/files/31201209593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6874/9979/files/wusesexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4475/5866/files/fuxuguwijujigugibutep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8578/3455/files/46802249152.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_off00006522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6522 5464 bytes
SHA-256: 1cce34488c4de276842346167d421295e4fc92ac41f4e01968b1b74e506458b8
font_01_sfnt_off000077ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77AD 9552 bytes
SHA-256: 9e1561a96b5e9c63dc9d591e9250fa1d1dc76ac8958e14b67638860947f85160

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