Malicious PDF — malware analysis report

Static analysis result for SHA-256 912ccd9fde9d4132…

MALICIOUS

PDF

44.0 KB Created: 2020-08-16 21:12:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b31ef5eee1308fd3076980f1666bc719 SHA-1: 9c7b0b79ffd685655280e2276e9347e144892aaf SHA-256: 912ccd9fde9d41322ba3c378b7836ca25523327366a603f1f3cfae72eb360805
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link pointing to ttraff.com, which is known malicious infrastructure. The document body explicitly mentions 'Acronis true image 2013 trial', suggesting a lure to download or activate software. The embedded URLs, particularly the one to ttraff.com, are the primary indicators of malicious intent, likely leading to a further stage of attack.

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=acronis+true+image+2013+trial In PDF document text
    • http://files.robjackson.co/uploads/1/3/2/7/132740285/7557948.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/1/0429/9689/1807/files/tadajisik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/9528/8984/files/katolight_generators_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0749/2775/files/tabla_de_caracteres_ascii.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0252/7895/files/46484643600.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8733/1481/files/rulaxotirobisozif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1198/0964/files/newagazowozuvamex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bijalikupuxamimidesedol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8338/6280/files/jquery_1._9._1_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2808/5911/files/chava_novel_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4678/0566/files/1441821641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3384/5150/files/vexozowawov.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 2

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_off000066b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B3 5596 bytes
SHA-256: b58a490a98d9280ca3ca40edad4d5ff32497661527cf6d8a38d3fd2c6092ac1a
font_01_sfnt_off000079a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A1 13332 bytes
SHA-256: c49c1b5eaf88f9b5c55a06cf46c930cac9e5f2659c75ed5fe94f0e22e1cc1adb

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