Malicious PDF — malware analysis report

Static analysis result for SHA-256 07b07fa1ac883b3e…

MALICIOUS

PDF

48.1 KB Created: 2020-08-22 08:55:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ff6d60cf325cc80cc9b1f8ea3e5f165 SHA-1: 5fe3f3204305d96f8b98f26f74368a7fb96823b1 SHA-256: 07b07fa1ac883b3e324c37170895bef31ce7465b4181f248da9b2a7e3f188908
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service known to host malicious content. The primary malicious URL identified is https://ttraff.cc/pify?keyword=tca9548a+i2c+multiplexer+datasheet, which is likely used to deliver a second-stage payload. The document body, though heavily obfuscated, contains references to this URL, reinforcing its malicious intent.

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.cc/pify?keyword=tca9548a+i2c+multiplexer+datasheet In PDF document text
    • http://files.idokodo.com/uploads/1/3/1/4/131437241/cb2233.pdfIn PDF document text
    • http://jomok.1stgradespanishtrack.net/uploads/1/3/1/8/131856827/nuderifijonimidu.pdfIn PDF document text
    • http://dizige.grandprairietreeandlandscape.com/uploads/1/3/1/6/131636948/zuwuvuxuwa_rapebuxu_saluk.pdfIn PDF document text
    • http://files.newbornumc.org/uploads/1/3/0/9/130969985/2615501.pdfIn PDF document text
    • http://runib.lindaoatmanhigh.com/uploads/1/3/1/6/131606457/vupid.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/1/0427/7298/8071/files/4040499094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7106/9594/files/digestive_system_diseases_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7764/0092/files/alginate_gel_formed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4632/9750/files/powome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0071/7727/files/kejonupovijimigerawurire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4673/0904/files/dafikubamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0891/7657/files/libertarianism_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2487/5674/files/94648862789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6671/0433/files/lefujulefiratemofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0408/2851/files/junagegavizopefina.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_off00007a5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A5F 6024 bytes
SHA-256: bd6b3476689f6e30213d0793415aa1840141c3b09b367c564571b7cf848c817d
font_01_sfnt_off00008ebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EBB 10636 bytes
SHA-256: 385d8d50befab32443c82ec9bcb69089db6e3b9bebc1908352ef89450bf6e9ac