Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d877b90a798c1f3…

MALICIOUS

PDF

71.7 KB Created: 2020-08-21 03:00:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0115969812187c4f390a5534c8a7e67 SHA-1: fcde2cc55c43ffa03e1ae45e09ee4a8cf417211f SHA-256: 6d877b90a798c1f36bdfa239a2f9b079aabdeda910bcaa789ff0546d7f674d71
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 to drive traffic to malicious infrastructure. The ML classifier strongly flagged this PDF as malicious. The embedded URL and the heuristic firings suggest a social engineering attack leveraging a link to a potentially malicious redirector.

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=architecture+informatique+r%25C3%25A9siliente In PDF document text
    • http://files.primrosehillpto.org/uploads/1/3/1/4/131406082/12a000e0.pdfIn PDF document text
    • http://files.kirkinsure.com/uploads/1/3/1/3/131380001/vajifebikelotibuwa.pdfIn PDF document text
    • http://lakuwelud.liveinfullbloom.org/uploads/1/3/0/7/130738638/606fc89bc9ab51.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/1/0433/1077/6478/files/functions_of_labour_law.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1243/7662/files/hotstar_vpn_free_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/24200466035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9870/9918/files/cell_cycle_and_mitosis_webquest_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pisanebemewamabojesodid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/16288106782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3609/0273/files/tevogabimitekota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1418/3323/files/94466074239.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 2

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_off0000d8eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8EB 5380 bytes
SHA-256: cb6be248111df41930672fd62b28b047411133754c14ebfb9704c2fee90dbc18
font_01_sfnt_off0000eabd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEABD 11996 bytes
SHA-256: f3b1de5ae7de78bc0c779ebf1c48610a9c0a7ef82e1f236398d69930530bc990

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