Malicious PDF — malware analysis report

Static analysis result for SHA-256 87eeda132ab6dc88…

MALICIOUS

PDF

44.1 KB Created: 2020-08-22 12:39:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46f9acb09ade46ab2f94b2d0c51f1370 SHA-1: f2572866c1aa6c08b70cf01142e67ce12eec039d SHA-256: 87eeda132ab6dc889296d8fdfc82daa6d7a2ce713d7a9d81f44949e179912bd4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The embedded URL `https://ttraff.ru/pify?keyword=gcse+biology+classification+worksheet` is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to a 'classification worksheet' and the malicious URL, reinforcing the lure.

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=gcse+biology+classification+worksheet In PDF document text
    • http://files.marylandmonarchconservation.org/uploads/1/3/1/6/131607047/zodusot.pdfIn PDF document text
    • http://files.gabcmemphis.org/uploads/1/3/2/6/132682990/9079200.pdfIn PDF document text
    • http://jubukexu.gracebecker.org/uploads/1/3/2/6/132683138/3248077.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/1/0437/5799/4138/files/tikijivasidamegulip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3724/5085/files/ms_aphasia_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2925/0719/files/60835318635.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6219/7400/files/50702060061.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1570/8580/files/65585899054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2777/4115/files/45730992965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4329/9234/files/22873166742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8166/2613/files/550558208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3000/3358/files/nys_form_nf-_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xasaxikopakepiditewevumub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3816/3623/files/53258344379.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_off00005927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5927 5572 bytes
SHA-256: c1bcb393469dfe6e0223355885299c30fde3415c87d7200cc4ac740df08659bf
font_01_sfnt_off00006c2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2A 9948 bytes
SHA-256: 7e55b4b22bf86b3617eb3039a9d06d88c41a37faaf944979921e344303837af0
font_02_sfnt_off00008e6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E6C 16088 bytes
SHA-256: 7ccd8150e2c48a9748994740f2a0713563e2bc66516285f786c138bc0577823a

Open this report in the interactive analyzer, or submit your own file for analysis.