Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e5c164553f3f2a9…

MALICIOUS

PDF

40.1 KB Created: 2020-08-21 03:20:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48a323301b79e7523e63c5548a07483c SHA-1: 93993547fbf39eb4e88cbbebb7e5086d7461f5ef SHA-256: 7e5c164553f3f2a9f04915e189ed3fb440b05e5de933679134f2ffa1285877c6
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) known for malicious activity. The document body, though heavily obfuscated, contains the primary malicious URL, suggesting a phishing or malware distribution lure. The ML classifier also strongly indicated maliciousness.

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=scratch+manuale+italiano In PDF document text
    • http://povolejin.addysg-ffalala-education.com/uploads/1/3/2/7/132712072/xovivakulivituwikod.pdfIn PDF document text
    • http://files.belaccommunications.com/uploads/1/3/1/4/131437158/9955582.pdfIn PDF document text
    • http://files.ljlashartistry.com/uploads/1/3/2/6/132682787/sejofiratiwumagiza.pdfIn PDF document text
    • http://kixosom.nscwritingcenter.com/uploads/1/3/1/1/131164250/7482503.pdfIn PDF document text
    • http://vadixiv.asq1100.org/uploads/1/3/1/1/131164250/3630480.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/1/0432/8580/7269/files/jazodapesisetonodod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5746/3971/files/1454155809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/stop_words_list_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9252/4700/files/30140282327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/power_systems_engineering_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4130/0380/files/acca_f9_study_text_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2207/4534/files/sijixewovofajamelewosupem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5026/1915/files/b._ed_cet_online_form_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4165/9797/files/32004934920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9885/6867/files/clear_history_on_samsung_tablet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4694/4416/files/togewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1540/5725/files/10555245832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3638/5175/files/25283799887.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_off00006149.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6149 4964 bytes
SHA-256: c8dccba50f9119c70dc82eaaa61ef963c76e0d3bd83cd3f75fada5d4db24835d
font_01_sfnt_off000071f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F6 9824 bytes
SHA-256: 936a133935aeb670f968af21b06859f227cddcafe9d7d5d6a943d7df8d852613

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