Malicious PDF — malware analysis report

Static analysis result for SHA-256 86c850d4b5be26f7…

MALICIOUS

PDF

49.2 KB Created: 2020-07-31 03:33:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 056e21d9b72cbb00e65efc2a4ad9a46e SHA-1: 6678ce50c61a439203fa12fb97bdc740b83517de SHA-256: 86c850d4b5be26f7b097756456b4c5f9a7096d65da78521cf87d6b8f40acb838
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The ML classifier strongly suggests maliciousness. The embedded link `https://ttraff.com/pify?keyword=jurnal+pengertian+titrasi+kompleksometri+pdf` is a known malicious redirector, likely leading to a phishing page or malware 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=jurnal+pengertian+titrasi+kompleksometri+pdf In PDF document text
    • http://files.visiontreecenter.org/uploads/1/3/0/7/130739779/8aa61fdac8864b1.pdfIn PDF document text
    • http://files.mikeforu.com/uploads/1/3/2/7/132740978/sirenes.pdfIn PDF document text
    • http://files.johnsonmorrisfamily.com/uploads/1/3/1/4/131453060/retefizogenulaliw.pdfIn PDF document text
    • http://files.studentsformedialiteracy.org/uploads/1/3/1/4/131438071/kijugajitadudaf.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/1/0428/9835/8432/files/61066914906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zikoraj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0695/0550/files/48962421751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/77017490294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2707/7032/files/mevunod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5755/9190/files/ninemeloxixixawamewevozog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kosetomamevisired.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2051/7537/files/nusunudomuvufupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51439980706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5046/6454/files/72436362620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7892/7014/files/xufimivajebasezuxofaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4697/7188/files/xadekasunapemuzogad.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_off000080d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80D6 5296 bytes
SHA-256: cc8927a697ea8d267e441ea183608356872ef35f05d113e2f56618958879a5bc
font_01_sfnt_off000092c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92C2 10336 bytes
SHA-256: d079558d48b1d372c62f59cbf704fca79c293d69ce19c76327d76ad037330349

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