Malicious PDF — malware analysis report

Static analysis result for SHA-256 146ed0a80f1e0d88…

MALICIOUS

PDF

45.8 KB Created: 2020-08-23 18:41:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 27dcd3d45e824e69a46cec1ddca7ac77 SHA-1: 61aa8c414ac80507d7a46ef3a4562d65832969a1 SHA-256: 146ed0a80f1e0d8830f36a61017b64246e3bcaff7c524741b3174dbb0fe0c5da
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically designed to lead users to a link farm. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=osha+office+ergonomics+pdf', which is used in an SEO-based lure. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to deliver a malicious payload or phish for credentials.

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=osha+office+ergonomics+pdf In PDF document text
    • http://musozafiw.cottagethreads.com/uploads/1/3/0/7/130776483/sijizow_fafodepunuzej_gutujinupasa.pdfIn PDF document text
    • http://miguratem.spokanehomeprep.com/uploads/1/3/2/6/132695517/4e7e8a04d382a6.pdfIn PDF document text
    • http://files.aliciahitephotography.com/uploads/1/3/1/4/131438667/2562859.pdfIn PDF document text
    • http://files.sensibleshock.com/uploads/1/3/2/7/132740479/vasesejakukek_faxej_lelikam.pdfIn PDF document text
    • http://files.robfedson.com/uploads/1/3/2/6/132681836/jikirogaj-josebujenakuvoz-sipelibotil-doluvixe.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/1/0432/5359/6310/files/64406986209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5296/6812/files/vutokovabanaxifanuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8056/4392/files/10964049222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7589/5450/files/40548526711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6594/0904/files/kulimimosafubujile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/9053/4561/files/76987656254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/7710/8647/files/android_7_recovery_mode_no_command.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3509/8264/files/telatukifasadujobid.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 8

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_off000074ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74CA 5564 bytes
SHA-256: ed74420383a003f642f2b46364191d58ee09f8b2e371fccc1447091297ebffc7
font_01_sfnt_off00008785.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8785 10088 bytes
SHA-256: f8f0ea45e44da69a6306e4f3056b5d81dc3acc7dfc3083d02a772aea69b85dbb

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