Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d1b49ca17b25cb9…

MALICIOUS

PDF

45.6 KB Created: 2020-08-26 19:43:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce0ca7049d9fe2611475dda733cdfa7e SHA-1: 85eec7c055597d478e4d0ee1a14f8847287a4a57 SHA-256: 4d1b49ca17b25cb90def30083bc5dfef8fb3345a0cfcc0313d17b3d0190ce51c
202 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) that is flagged as malicious. The document body and heuristics indicate a lure for a 'dwg file converter to pdf', suggesting a phishing or malware download attempt. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect the user to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=dwg+file+converter+to+pdf In PDF document text
    • http://vivus.moonsiewshutters.com/uploads/1/3/1/4/131437605/banasewetedidadon.pdfIn PDF document text
    • http://files.bullets-n-beans.com/uploads/1/3/1/0/131070674/peroxixunik.pdfIn PDF document text
    • http://files.totallylinkedin.com/uploads/1/3/0/7/130739239/nubiziwenetob.pdfIn PDF document text
    • http://files.msfegen.com/uploads/1/3/0/7/130775221/a7d765bb8371a67.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9969/2958/files/96808521166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7547/2279/files/harmful_effect_of_smoking.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/dafaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3272/4124/files/lodam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6278/files/59843135000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6697/3598/files/fulanubebiwekaxukobaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/welixegike.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6097/7048/files/download_pokemon_omega_ruby_rom_decrypted.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/72723341820.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 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006851.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6851 4872 bytes
SHA-256: fbe2448be80cfbb2a16aeb3ace7d72554c13c3c544f31f5f3113755175147bf4
font_01_sfnt_off00007908.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7908 10128 bytes
SHA-256: a69ca5742eb829ebbf1d0106ec411dc7061c855b5b679f8602ad25d058f0f46a
font_02_sfnt_off00009bc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BC6 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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