Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a39f340a7df9b70…

MALICIOUS

PDF

181.0 KB Created: 2020-08-02 06:04:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1eb93cc504c3f7a40d6979cff1735883 SHA-1: fbdbbd304a93fd89783e2ac2cd75b915c76c13c5 SHA-256: 2a39f340a7df9b7025151efaf7a239021cb62c43babb611ab057058383ac0036
134 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 pointing to 'https://ttraff.com/pify?keyword=mysql+you+are+using+safe+update+mode'. The ML classifier also flagged this PDF with high confidence. The document body contains the same URL, indicating a direct attempt to lure the user to a malicious site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=mysql+you+are+using+safe+update+mode In PDF document text
    • http://files.afuricupertino.com/uploads/1/3/1/4/131452903/5380194.pdfIn PDF document text
    • http://files.myneighborhoodpt.com/uploads/1/3/1/1/131164081/cfc3354132e.pdfIn PDF document text
    • http://files.trueholinessnde.org/uploads/1/3/0/7/130776341/wumudav-vilijarapiwu-fowemotanoz-setabuv.pdfIn PDF document text
    • http://files.williamsburgrec.com/uploads/1/3/2/6/132682745/tagogumolizim_fofuzipupi.pdfIn PDF document text
    • http://files.the-simple-kitchen.com/uploads/1/3/0/7/130739239/leforediramodu.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/1/0431/4162/8072/files/malabimakisusewabem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3604/7525/files/nowesesewomeroworaba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4141/5587/files/17016676582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8258/0130/files/85736422508.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8153/0534/files/bufofakilixiwadejitad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4469/2383/files/kuwifolozowiworoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/vogebirire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8670/8885/files/28834699523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4119/3110/files/kabunafijafuzanav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9015/7473/files/98517979341.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/vexuxiwiwikoguruvuxuje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.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_off00028038.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28038 5592 bytes
SHA-256: 164326309406dfaa360a598fd8218c35a40dec15c8e5f63951a857db4241d2aa
font_01_sfnt_off00029341.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29341 15872 bytes
SHA-256: fdf206c8dca3a47e6af4ccd3fb621f4748a93edf35742ff8d7b16ba60a71049a

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