Malicious PDF — malware analysis report

Static analysis result for SHA-256 2458744734fd5e86…

MALICIOUS

PDF

47.1 KB Created: 2020-08-02 01:26:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ab16d968711aaf6f4756a094502b1b3 SHA-1: 2e4915dd393c07e92c532be77abf43789121e65e SHA-256: 2458744734fd5e861aa2c87a083c36f301768289a4643612d38dff9235522145
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains this URL and appears to be a lure for a driver download. The PDF also hosts a large number of links to other PDFs on Shopify domains, likely for SEO manipulation to improve the ranking of the malicious redirector. No scripts were extracted from this sample.

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=bluetooth+peripheral+device+driver In PDF document text
    • http://files.copelandconnection.org/uploads/1/3/1/8/131856574/2643010.pdfIn PDF document text
    • http://files.kalinabg.com/uploads/1/3/0/7/130776682/0499461ad5e29.pdfIn PDF document text
    • http://files.ocmulgeeblacksmithsguild.org/uploads/1/3/0/7/130739835/lotolemotovazikij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9874/9608/files/zixexifof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6056/0025/files/kiwama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0872/1045/files/garevatuvazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4705/0661/files/vazurapifapoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3390/9665/files/bopugavunusagosor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5675/files/21091374884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6382/0959/files/19178379672.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1645/4305/files/xanodezopelagutujozuzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/komokanaxudikeleseton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4763/2548/files/16873474370.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4102/9276/files/59828361140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4803/2666/files/xoxuxotuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7895/7718/files/brooks_was_here.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/jewamumawunixudodafoxu.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E7E 4868 bytes
SHA-256: a03c767e587a3221579f9ba6a58c4aea488735ed320c221d47a409928f7a9f3e
font_01_sfnt_off00007f24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F24 9968 bytes
SHA-256: 6aa81cf3dcab5f34dbbc3806949f46251f363439f25355382358ea2c5e52ae87
font_02_sfnt_off0000a150.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA150 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176