Malicious PDF — malware analysis report

Static analysis result for SHA-256 125c2baeffa5084a…

MALICIOUS

PDF

47.5 KB Created: 2020-08-25 00:01:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2eb2fc25d6b60c52d8b0a5bf94a44bd6 SHA-1: 02e77e43b6850153596ef20bb8e78a5a09b83dcd SHA-256: 125c2baeffa5084a40150841803b95394a962f4b167a3bcfe993646e0fd61b60
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body text, though garbled, includes keywords like 'mcgraw hill connect economics answers' and a suspicious URL, suggesting a lure for phishing or malware. The presence of numerous external PDF links further supports the SEO link farm heuristic, indicating a likely attempt to drive traffic to malicious sites.

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=mcgraw+hill+connect+economics+answers In PDF document text
    • http://rowizilad.buildabow.ca/uploads/1/3/1/6/131607062/xejes_xafikeloxojegil_linote.pdfIn PDF document text
    • http://files.lotusliondesign.com/uploads/1/3/1/4/131407530/6797100.pdfIn PDF document text
    • http://zugilebu.cccommunityscholarships.org/uploads/1/3/2/6/132681012/07a7cf.pdfIn PDF document text
    • http://tibanu.houseofmusick.com/uploads/1/3/2/7/132740720/9037886.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/1/0440/6745/5128/files/rosefopizup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9593/9488/files/wow_druid_talents.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6092/7393/files/alopecia_androgenica_en_mujeres.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/74652711075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/19419435905.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8148/9818/files/kamejikudupame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3006/8894/files/zididuwowabalijulureze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3110/8503/files/wawalewikenosir.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_off000074ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74CA 5308 bytes
SHA-256: 0d2a01c5f728e278788b89e5a17a87e25ef0af27d1c62791c36fd8e204f90667
font_01_sfnt_off000086c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86C2 13396 bytes
SHA-256: 8fa604f0da691b5bf7b8a15a0ff576fa74fe05f5c820fcf654f5aebdcffcff46

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