Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee42378fa4300f1f…

MALICIOUS

PDF

39.0 KB Created: 2020-08-03 04:40:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f4de51553ff731ff8fd0b40335216cb SHA-1: 9fe79cf59b0e570a616ca16ca85cab5fb8572a3a SHA-256: ee42378fa4300f1fab9f24612d18d2f31ab208f506efb6b24a9f1d227edeeacb
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=50+shades+of+grey+book+free+download'. This URL is presented within the document body, disguised as a free book download, and likely leads to a malicious payload. The PDF also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, suggesting an attempt to manipulate search engine results or distribute content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=50+shades+of+grey+book+free+download In PDF document text
    • http://files.mygrapplingvideo.com/uploads/1/3/2/6/132695732/ronoloposeku-ganir.pdfIn PDF document text
    • http://files.southeastfinancialcenter.com/uploads/1/3/0/7/130776499/54d2b366.pdfIn PDF document text
    • http://files.reading2reading.com/uploads/1/3/0/9/130969555/49253ecafb.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/1/0429/1382/4927/files/nudivus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/63410762847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1334/9273/files/menugisori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9947/0486/files/sennheiser_tr120_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6997/1363/files/jidelaliweboru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4479/7600/files/semariramalozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/kepadufananoxipekokafasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5393/2966/files/32908773157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3216/7068/files/mivibijurimebibemub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/galesabizuweguxum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0820/files/4247829933.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4681/3344/files/55992814467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3572/8794/files/jovizajiti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3848/1311/files/48421775802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/97246925398.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5858 5736 bytes
SHA-256: 6504479d39a5b3b34836e69a4dce244f015a0453aa764acce8aea622a97b2c43
font_01_sfnt_off00006bf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF4 10284 bytes
SHA-256: 2b8fd816f44f6d2e5596d165bec918fb10a687b64f1934638f2295442d26512b