Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7246670fdf2b34b…

MALICIOUS

PDF

33.6 KB Created: 2020-08-11 12:49:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0539006fc83005dcadb5bdf6646dbea8 SHA-1: 52082696226b2e6a356dff39d8e8bf62baa04c59 SHA-256: e7246670fdf2b34b96c9d8456517bf97da2041de35b9a957c5529333d24e5192
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a redirector at ttraff.com. The document body text and embedded URLs suggest a lure related to a calendar search, likely intended to drive traffic to malicious or SEO-spam content. The ML classifier strongly flagged this PDF as malicious.

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/wb?keyword=mahalaxmi%20calendar%20jan%202019%20pdf In PDF document text
    • http://kikimegek.raananahikers.com/uploads/1/3/1/4/131407493/loxavudosobud-zebok.pdfIn PDF document text
    • http://jaxolo.germanbirddogs.com/uploads/1/3/1/3/131398101/tovuxirugag.pdfIn PDF document text
    • http://files.thevigilgroup.org.uk/uploads/1/3/1/3/131383657/rimejaj.pdfIn PDF document text
    • http://files.kiyashanti.com/uploads/1/3/0/8/130814758/5886456.pdfIn PDF document text
    • http://files.incrediblydelicious.com/uploads/1/3/0/8/130813588/novusijilijiwefunife.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/1/0428/9835/8432/files/69892687871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/pilumokujofofati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6667/8686/files/dojixojukesuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/94287487073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2327/7973/files/balkan_wars.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/labolanufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8420/8545/files/comcast_xfinity_channel_lineup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2888/8227/files/list_of_philippine_accounting_standards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8318/9662/files/physical_appearance_adjectives_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/25382468146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4906/6394/files/engineering_anthropometry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/64553528610.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: incrediblydelicious.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_off000045b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45B4 5848 bytes
SHA-256: 21aa7a8997ec543249517490615ab1c325173e5692c020f9a8b881073e4a9ff6
font_01_sfnt_off00005985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5985 9420 bytes
SHA-256: d3f6f3035d0f5702b170d953006dfa6a7969ef187a45c678b52525125d6d5160

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