Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec9c76835964787e…

MALICIOUS

PDF

51.4 KB Created: 2020-07-28 12:01:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1df1339833eb962aa3f67ac6a3b7077c SHA-1: a38fbf5706eba90887b5fbd82b5bce2fcbe01c49 SHA-256: ec9c76835964787e0c075507d98ddd87f53b63f17417d5493a16540929dd8365
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'ttraff.com'. Another critical heuristic, PDF_SEO_LINK_FARM, indicates a mass of external PDF links, with 'cdn.shopify.com' being a dominant host. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, appears to be a lure related to EPA air pollution technology.

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=epa+air+pollution+technology+fact+sheet In PDF document text
    • http://files.thejazzyjewelzstudio.com/uploads/1/3/1/3/131379262/268d5e3fef3.pdfIn PDF document text
    • http://files.whatsnextreport.com/uploads/1/3/1/4/131438418/7253195.pdfIn PDF document text
    • http://files.ddtpphinc.com/uploads/1/3/0/7/130739810/b019ec0270e08.pdfIn PDF document text
    • http://files.benevaanimalhospital.com/uploads/1/3/1/8/131856232/texijesatosu.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/1/0438/9978/1275/files/lezidexiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8941/2764/files/burekodibigamukagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5491/6003/files/jalopifimekavukofodutajek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4571/4077/files/nufijuxikusipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5813/3152/files/39581577223.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5586/4222/files/58664430392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7448/6421/files/sukewosijopebalagitudug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0133/0339/files/27881566791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/mesom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2942/2499/files/kuwufogexomadurilisakede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0093/9164/files/wudonerotifuzudan.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
🗂 Part of campaign: thejazzyjewelzstudio.com 3 samples

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_off00007fbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBE 5216 bytes
SHA-256: 7bcdabec58d45d01ec4ad536e63dd45cb1af56f6e50eec7155fb922be6c426ec
font_01_sfnt_off00009185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9185 15124 bytes
SHA-256: 1e4e894405ee5ee038e0ff9e1340c6ce206da1a6890e4660bb8c28ae78765e9b

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