Malicious PDF — malware analysis report

Static analysis result for SHA-256 3652871be77d56de…

MALICIOUS

PDF

37.2 KB Created: 2020-07-08 17:27:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-08-25
MD5: 8c3a0cabd8d1ec327214cfbebfd7d4df SHA-1: 26323974201fca1bddce0d71d151ba4fadde1a99 SHA-256: 3652871be77d56dea2565892c1d2c829e69810d6524469b478ad1b1f8b27bb70
194 Risk Score

Malware Insights

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

The PDF contains a prominent link disguised as a 'Trillion dollar coach accompanying pdf', which redirects to a known malicious domain (ttraff.com). The document also features a large number of embedded links pointing to various PDF files hosted on external domains, indicative of a link farm or SEO poisoning tactic. These elements strongly suggest a phishing or redirection attack aimed at tricking users into visiting malicious sites.

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=trillion%20dollar%20coach%20accompanying%20pdf In PDF document text
    • http://files.chloemarrissa.com/uploads/1/3/1/3/131379290/sotufajovata-zebufoja.pdfIn PDF document text
    • http://files.espsinc.net/uploads/1/3/0/7/130739183/47343c604.pdfIn PDF document text
    • http://files.chrisschnabelart.com/uploads/1/3/0/8/130873895/8094947.pdfIn PDF document text
    • http://files.rabbitmountainlavender.com/uploads/1/3/0/7/130738625/futevukumuj_lulamatix_libujuferebetux.pdfIn PDF document text
    • http://files.sisterspiritwomensharingspirituality.org/uploads/1/3/2/8/132815154/58853863.pdfIn PDF document text
    • http://files.littleladyo.com/uploads/1/3/0/9/130969004/furopigolijur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://mixumepenow322808010.files.wordpress.com/2020/06/mababiluwuxukagix.pdfIn PDF document text
    • https://rozirul.files.wordpress.com/2020/06/sebikizolanikomajakupoluw.pdfIn PDF document text
    • https://kikujasut.files.wordpress.com/2020/07/suxevomeximuzapaxepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75901524911.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/63537272249.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pedarivorenali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xekugoxozeritazol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72518400380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78108387577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98973723668.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_off0000566b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x566B 5032 bytes
SHA-256: 3c3a88cc8aa386f8a69fc22c4b77f7456615773f513697d0d74a282b0fbc6335
font_01_sfnt_off0000674e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674E 9576 bytes
SHA-256: 80bcc5e0d35ba38052ad3a258840c0d2d5ae2a1dcfcae1bcb667e06b1e583309

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