Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d7ae940f4a18846…

MALICIOUS

PDF

46.0 KB Created: 2020-08-16 22:09:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4e8c6396be8481094b3e9ce532188a2f SHA-1: bc44682027f9c0afadffbfb943f7e41105a0b874 SHA-256: 8d7ae940f4a18846e36aaad5dadb858547402f67636a765db94629837e4db76d
202 Risk Score

Malware Insights

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

The PDF contains multiple external links, including one identified as a malicious redirector pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text suggesting a 'budget spreadsheet format' lure, and a call-to-action phrase was detected. This indicates a phishing attempt designed to redirect users to malicious content.

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.com/pify?keyword=budget+spreadsheet+format In PDF document text
    • http://files.well-estar.com/uploads/1/3/1/6/131637034/91a0067.pdfIn PDF document text
    • http://files.bethellutheranschool.org/uploads/1/3/0/9/130969185/3777456.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/1/0430/9578/5621/files/bodezibinamamera.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0305/1175/files/biosecurity_in_poultry_production.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0016/7589/files/75455177060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8615/9767/files/nolegurisoluzufenav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5293/4044/files/item_id_minecraft_pe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7175/0823/files/wewoferotafaxuduzonuvonan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9157/files/1738886747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1855/0429/files/baby_boy_names_in_tamil_with_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6354/8833/files/4133842348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7917/2257/files/59064805710.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E93 5472 bytes
SHA-256: e3ccbdb4fc6134999282212481809900284f541038f4c166aedbd9efbc5cdd65
font_01_sfnt_off00007113.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7113 10572 bytes
SHA-256: a7ced43086d2b7918451d4d15e2f44b066c9b7664bfc8bee75c734d2ee54c5bf
font_02_sfnt_off00009575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9575 16312 bytes
SHA-256: aad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0

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