Malicious PDF — malware analysis report

Static analysis result for SHA-256 64ef3e173aa6650b…

MALICIOUS

PDF

50.1 KB Created: 2020-08-25 01:08:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cbed119f2fb35854ce0678b664419e4c SHA-1: fbde3aea8c4510b56b78de5770a33af219c6b2f8 SHA-256: 64ef3e173aa6650bc4f769dd64d78c08bfb46ca9b9bc08e4ae193ceeddae1b4e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, masquerading as a document related to 'alligations and mixtures'. One of these links, https://ttraff.com/pify?keyword=alligations+and+mixtures+pdf, is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to potentially harmful content, likely a phishing or malware distribution site, under the guise of providing a document download.

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.com/pify?keyword=alligations+and+mixtures+pdf In PDF document text
    • http://files.chemistrylabmanual.com/uploads/1/3/1/3/131380052/2487410.pdfIn PDF document text
    • http://files.thekaleidoscapes.org/uploads/1/3/1/6/131606397/6fc04cea490aa.pdfIn PDF document text
    • http://jupijam.autosearjig.com/uploads/1/3/1/4/131406390/ef4ac.pdfIn PDF document text
    • http://nekudo.shawngrewal.com/uploads/1/3/0/8/130814328/bda42942a331d0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9206/6975/files/55105750712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0008/5160/files/acog_guidelines_gestational_trophoblastic_disease.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0970/9976/files/bismillah_calligraphy_font.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gabagijujusudizal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8443/7922/files/arbol_familiar_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/7615448621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7876/9045/files/lumibegutiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/balejugazarakifitibarubug.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 1

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_off00006c58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C58 5300 bytes
SHA-256: 452e5377e074363d396fa072cb93a41289ae2e14ac9e2a50555cd468cbdb3f2d
font_01_sfnt_off00007e43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E43 15300 bytes
SHA-256: 189cdada69a6de2371ec79e8e97cbefa2207ab19007fe0fb0e610b0f5dc0c0dc
font_02_sfnt_off0000adb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADB6 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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