Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e7f09c8e94c3910…

MALICIOUS

PDF

39.6 KB Created: 2020-08-26 08:42:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5b746adb558668dbf37ae8d61477cf8 SHA-1: 45a4ddb4afed1c07f96f566a4bb4b5a3fc9e5053 SHA-256: 8e7f09c8e94c39100eb401fd5a42f0c69ceb6ed3b62ee7f868180a0b9e1d960a
222 Risk Score

Malware Insights

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

The PDF document impersonates a cloud document lure, presenting a download button that, when clicked, redirects the user to a malicious URL. The primary malicious URL identified is ttraff.com, which is known to host redirector infrastructure. The document body contains text related to 'Cnet adobe reader', suggesting a lure to trick users into downloading a fake Adobe Reader update.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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.com/pify?keyword=cnet+adobe+reader In PDF document text
    • http://files.wonderpin.com/uploads/1/3/1/6/131637362/feligizibab_bikajegirob_titit_julen.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/1/0428/9835/8432/files/91960476686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/letras_de_canciones_infantiles_cortas_para_preescolar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0243/6518/files/mabebe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3631/9645/files/lofifubisav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6624/4766/files/14450971493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5004/9448/files/favupaxuwepiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3086/1208/files/android_scrolling_activity.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1373/4563/files/blank_calendar_january_2015.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/1314/0643/files/ultimate_guide_to_google_adwords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/tarat.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_off00005b24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B24 4652 bytes
SHA-256: edbfe889841915ebb65df7db84788acd0eb490054995750dffd2e95893bc3321
font_01_sfnt_off00006afb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFB 12328 bytes
SHA-256: e9b913f7001e02b8b9b36264b76bba8e66b1a13fb0ef0380e112f07388113ceb

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