Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d6bd6757c92e4d4…

MALICIOUS

PDF

44.0 KB Created: 2020-08-24 15:19:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9666f62492e4b81c04a87e9f0eaaedfe SHA-1: a3767c5421f2eb492a8bac489cc59413a24b9497 SHA-256: 1d6bd6757c92e4d43ba99b8010232dc1424aef48589b9d948aa8adf4a2cc3f4f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains references to a 'Dragon naturally speaking commands cheat sheet' and includes the malicious URL. This suggests a social engineering attempt to trick the user into visiting a malicious site, likely for further exploitation or credential harvesting. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=dragon+naturally+speaking+commands+cheat+sheet In PDF document text
    • http://gowanexo.anwarhadi.com/uploads/1/3/0/7/130739593/safamawiligiwub_nixam_gomupunodi_mizebo.pdfIn PDF document text
    • http://files.inthedeadofwinter.com/uploads/1/3/1/4/131437515/8387137.pdfIn PDF document text
    • http://files.stacyjfox.com/uploads/1/3/1/4/131454216/vegiz-sodugiju.pdfIn PDF document text
    • http://xibup.b4rnpr.org/uploads/1/3/0/7/130738632/8ddd105779b8.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/1/0459/2546/6279/files/dukesetedezalar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3869/5846/files/exam_cram_property_and_casualty.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0757/3149/files/leadership_qualities_in_healthcare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4100/3432/files/environmental_monitoring_and_analytical_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8828/8670/files/the_spoken_bible_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8877/1227/files/fnma_stock_message_board.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2693/3916/files/normalidad_anormalidad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/89388951433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9660/2779/files/50781210925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2734/8121/files/nrc_motors_redlands_ca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9717/0847/files/wizawubijavanixagolomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/70677676578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0067/5995/files/tilebajofajaxabafi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4735/2480/files/auslan_sign_language_alphabet.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006691.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6691 5652 bytes
SHA-256: d6ad67ae8599cdc84fd3b0dc1b5a0a4ffc8e040c6654b3de8b684344074e7652
font_01_sfnt_off000079aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79AA 12700 bytes
SHA-256: 3b36e21d8501c36e71b95fc0c868db785762048d845e74944a60c9a6753dea31