Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa589bcca66f4b8c…

MALICIOUS

PDF

33.0 KB Created: 2020-08-02 13:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9bc71e2d8daf73f598f7dd0383a4d72e SHA-1: 373c923736135e9fe3cedd576cefe982e157045d SHA-256: aa589bcca66f4b8c4fc731b469a9c72414f5746f85e13a44b0b647a6a3839a64
194 Risk Score

Malware Insights

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

This PDF document exhibits malicious behavior through a large number of embedded links, many of which point to a link farm hosted on Shopify. The primary malicious URL, 'https://ttraff.ru/pify?keyword=mortal+kombat+rom', is identified as a malicious redirector. The document's content, though heavily obfuscated, appears to be a lure related to 'Mortal Kombat rom'. The extensive use of Shopify links suggests an attempt to obscure the true destination or leverage SEO tactics for distribution.

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=mortal+kombat+rom In PDF document text
    • http://files.audaciousmonkey.com/uploads/1/3/1/4/131483128/8cc41aa33f7b343.pdfIn PDF document text
    • http://files.giaddiecreations.com/uploads/1/3/1/1/131164081/2b8a1f70a463.pdfIn PDF document text
    • http://files.writinginkc.com/uploads/1/3/1/8/131871602/xisiporetoxusubumexo.pdfIn PDF document text
    • http://files.jennycrakes.com/uploads/1/3/1/3/131384429/vujutozuwevanomuseb.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/1/0433/1202/1662/files/54654124102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7932/7130/files/26552027302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/67604350439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2476/1507/files/535035237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9013/3663/files/petixivalebuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1509/3920/files/53715370181.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1076/8546/files/59345911839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8089/3084/files/14074640823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5094/3142/files/nabedi.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_off000044c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44C1 4864 bytes
SHA-256: c6b788f5a22bfdd72548ea04896f297c500237f204e5b4b665241f2349adb65f
font_01_sfnt_off00005541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5541 10100 bytes
SHA-256: 16c20995d227488fe111831970108593d53a731da4b13df6f7bf0b6ca4a42650

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