Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb9bf9cef9fb7708…

MALICIOUS

PDF

41.0 KB Created: 2020-08-05 10:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ca62172b14fdbf1898d8c9d552c41247 SHA-1: 192e424b1cb7274e125d4f40cad063331c72871f SHA-256: eb9bf9cef9fb770893922ce0d22df645083b6568d9e40d604925b135740f014a
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector (ttraff.com). This redirector likely leads to a malicious payload or further phishing content. The PDF also exhibits characteristics of a link farm, with numerous links to other PDFs hosted on various domains, including Shopify. The ML classifier strongly indicated maliciousness.

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=funcion+de+la+hormona+adrenalina+pdf In PDF document text
    • http://buvozer.affinitybodyworks.com/uploads/1/3/0/7/130776208/tajitafujixej_juvilovoj_wipakufatitad.pdfIn PDF document text
    • http://files.run4hope5k.com/uploads/1/3/1/8/131871786/0934d6.pdfIn PDF document text
    • http://files.drtrevorsmith.com/uploads/1/3/0/7/130775518/911150.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/1/0429/0949/9548/files/types_of_laser_cutting_machine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/91252774261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5506/2938/files/88360800690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0834/9592/files/xobodupilubidevakazizune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8179/3698/files/mysql_drop_index_if_exists.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7335/3366/files/itextsharp_c_getting_the_comment_from.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4832/8603/files/55272921468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76640573288.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6440/1818/files/lafuwafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8638/8136/files/55338094984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6728/4387/files/snapper_riding_mower_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/72271036648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9037/8901/files/47838813303.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 3

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_off000060d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D3 5172 bytes
SHA-256: a313ef6893f4e4bb8b28e21a4604e33f2998e657b7c3264493425e0ad3cfb0c5
font_01_sfnt_off00007242.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7242 10840 bytes
SHA-256: 4458eba8a24471fb4ccaf1ad1e8f607b57edfad3426337faee7a4d0fc8660e83

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