Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba86ff57ebdcb085…

MALICIOUS

PDF

46.8 KB Created: 2020-08-06 08:04:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 25173399b11c927a276dd7b10cc269f3 SHA-1: cf5dc8d7fe842eae666b992bf01820edb6bc9634 SHA-256: ba86ff57ebdcb0850c7cc5ad8782882846f322dc921c4268b0e2ccbd32393e57
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=mergers+and+acquisitions+valuation+pdf'. This URL is presented within the document body, disguised as a valuation PDF. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content broadly. The ML classifier also strongly flagged this PDF as malicious.

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=mergers+and+acquisitions+valuation+pdf In PDF document text
    • http://files.literacyladder.net/uploads/1/3/0/7/130776745/2897338.pdfIn PDF document text
    • http://files.acousticharvest.ca/uploads/1/3/0/7/130738548/pijob_xovura_rimobatapu.pdfIn PDF document text
    • http://files.cefcamas.org/uploads/1/3/2/7/132712127/c8291154053d97.pdfIn PDF document text
    • http://files.thesustainableregistry.org/uploads/1/3/1/6/131606874/pepafesuraxar_xuzedoxujasinit.pdfIn PDF document text
    • http://files.monteverdimusic.org/uploads/1/3/1/4/131438180/setajurufika.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/1/0431/0263/4148/files/47647763587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2068/9306/files/sizopum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7241/4106/files/local_tv_listings_rochester_ny.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rixaraxamixenapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2538/3073/files/36331671711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7939/1646/files/godfrey_higgins_anacalypsis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6084/7004/files/zusilaridititinuwenapetuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8072/0294/files/1409375558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kofuka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5362/8062/files/65891726789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4024/1829/files/download_young_pappy.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 6

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_off00007754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7754 5512 bytes
SHA-256: 6518a38bbd91f4863f18d81d19b4edcf1366137eabf4d529d344efb8dcc91b3f
font_01_sfnt_off00008a2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2E 10520 bytes
SHA-256: 3303d461494eee09ded179791cea0b5223d2d276103adec2d52f4c875beeab00

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