Malicious PDF — malware analysis report

Static analysis result for SHA-256 9812430dadbc8f9b…

MALICIOUS

PDF

38.2 KB Created: 2020-08-10 14:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae485f7991e7a824d6c2459d255c6bc6 SHA-1: ccd32f659467b1e7cdf91fc32412e62d4c9f8f47 SHA-256: 9812430dadbc8f9bde123df5a203ddc5a45a440e8b30ebd08dfb87d02f4b3e5c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a redirector, which is part of a link farm designed to host multiple PDFs. The primary malicious URL is https://ttraff.com/pify?keyword=model+cerere+de+angajare+pdf, which likely leads to a malicious payload. The document body text, though garbled, suggests a lure related to a job application, aligning with the malicious redirector's keyword. The ML classifier strongly supports the malicious verdict.

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=model+cerere+de+angajare+pdf In PDF document text
    • http://files.garretreich.com/uploads/1/3/1/3/131380730/pixome.pdfIn PDF document text
    • http://files.rivendellmeadows.com/uploads/1/3/1/4/131454899/2081867.pdfIn PDF document text
    • http://files.noellejkim.com/uploads/1/3/1/6/131607712/5285759.pdfIn PDF document text
    • http://tepagon.stemcells4ultimatehealth.com/uploads/1/3/0/7/130776078/lafivomeguju.pdfIn PDF document text
    • http://files.highflyerseducation.com/uploads/1/3/1/4/131453902/femaw.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/1/0433/0687/7080/files/zevimija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1315/2673/files/xazejotiloko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9634/9602/files/87290555307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/949986333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/fases_del_diagnostico_comunitario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3804/0487/files/20909619573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2222/8379/files/55010677636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6629/2389/files/digukasimoxajazejav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5916/7900/files/mckeague_trigonometry_8th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/kusizezemefafunoxijulim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/novorubafiwani.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 7

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_off000056a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56A4 5224 bytes
SHA-256: 33c952641adfb0bf7e782a1e03060ae27005ce1c90dc56458ebea0fa8d2aee00
font_01_sfnt_off00006887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6887 10624 bytes
SHA-256: c020ffb79fa4c081050a1fdc6fc112a6ba398300dff5ad2ef67278ac933ba8b7

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