Malicious PDF — malware analysis report

Static analysis result for SHA-256 563ac1049abcb458…

MALICIOUS

PDF

38.9 KB Created: 2020-07-31 21:24:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: abce84cb523a003ad91cd45743370c91 SHA-1: bcb6f60436637ad79d60a4c60af191c67c756a42 SHA-256: 563ac1049abcb458ef086db46782fb7df598f46e84f1a75da31e64d6cc17ea37
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to a book title and the malicious URL, suggesting a lure for users to download potentially malicious content. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm or distribution mechanism. No scripts were extracted, but the primary attack vector appears to be the malicious redirector.

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.ru/pify?keyword=stahl%2527+s+essential+psychopharmacology+6th+edition+pdf In PDF document text
    • http://files.sgglassgallery.com/uploads/1/3/1/4/131407818/1d330a4e447.pdfIn PDF document text
    • http://files.bvswband.org/uploads/1/3/1/8/131856288/gasekasu.pdfIn PDF document text
    • http://files.hatsbyelvee.com/uploads/1/3/1/3/131382590/4835718.pdfIn PDF document text
    • http://files.paraglidinginjapan.com/uploads/1/3/1/4/131452799/2096101.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/1/0431/2468/7014/files/nuxozofujujariwejibosu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8592/2466/files/raxagodis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5940/4197/files/15155657615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6415/6575/files/fekeri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/19274009337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1583/0695/files/vebekatan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9074/8316/files/30210922660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9119/8112/files/84841126629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7610/8956/files/27024938352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6434/5255/files/54038304976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0304/3230/files/46904513353.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_off000057c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57C5 5964 bytes
SHA-256: 12631cc46aff6bc9574f7a6572356e63521e89ed019b1c66c64d699ea1d17588
font_01_sfnt_off00006bf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF7 10120 bytes
SHA-256: a92e1779699d1071c17a04c223b21e8d05b7094df09c9904974da949dc3a3567

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