Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d9b3fd77b9a8f77…

MALICIOUS

PDF

47.9 KB Created: 2020-08-10 10:11:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd1335e9528249226395391e87140b94 SHA-1: 93fc369f81e94c5db7dba357bec9c8981c6a3b26 SHA-256: 6d9b3fd77b9a8f77c1a0245e22dd3e23479c54bc824e9278f421008d0c439408
194 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it is a malicious redirector and part of an SEO link farm, designed to trick users into downloading content. The embedded URL, 'https://ttraff.ru/pify?keyword=brainstorming+cards+pdf', is a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and malicious links strongly suggest an attempt to lead the user to a malicious site, likely for phishing or malware distribution.

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.ru/pify?keyword=brainstorming+cards+pdf In PDF document text
    • http://files.campbellsbayvermont.com/uploads/1/3/1/3/131383204/luwasonoseranonoju.pdfIn PDF document text
    • http://files.audiostak.com/uploads/1/3/1/0/131070572/30655356c9.pdfIn PDF document text
    • http://files.bethchrismanmusic.com/uploads/1/3/1/0/131070846/1c1999ad37.pdfIn PDF document text
    • http://files.lapasd.com/uploads/1/3/2/6/132681916/3090628.pdfIn PDF document text
    • http://files.markst-photography.com/uploads/1/3/1/4/131438759/d43e9ffd17f21.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/1/0431/2160/6817/files/vowibovifotonaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/14472860131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9682/6261/files/word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/acog_guidelines_preeclampsia_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4711/6197/files/79450092309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9806/2501/files/carrom_rules_in_sinhala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6259/9584/files/duwusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9578/5629/files/jawami.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1560/1304/files/27511751745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8580/0358/files/gta_5_mods_xbox_one.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2451/5229/files/99934244720.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
🗂 Part of campaign: lapasd.com 5 samples

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_off00007cf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF3 5492 bytes
SHA-256: 7cbca17ed22ec418326a5277b8262098d40b2fcd16f5c854a013e45668c4643f
font_01_sfnt_off00008f90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F90 10356 bytes
SHA-256: af62825e77cb6e8577ff93cf60480a18aa67c4957cdb2e92bbc92325358db230

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