Malicious PDF — malware analysis report

Static analysis result for SHA-256 120b1e50eb0450d2…

MALICIOUS

PDF

172.0 KB Created: 2020-08-12 02:22:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d71002141b36ca963b8abf512e2d727b SHA-1: 2b44189fe686a6d237a156aec22623962e314fae SHA-256: 120b1e50eb0450d22ec7a910da75b2d2abc14eb9c79452a9a0e3de158b215eb0
134 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector used for phishing and malware distribution. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same redirector URL, suggesting the primary purpose is to trick the user into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=codigo+brasileiro+aeron%25C3%25A1utico+pdf In PDF document text
    • http://files.haleycloud.com/uploads/1/3/1/0/131069886/xobuwemex_dawaloxo_wanowupeji_lirodetilu.pdfIn PDF document text
    • http://files.donfranciscocigarstoo.com/uploads/1/3/1/0/131071019/baketogijukola_koxalasowe_tofilubor.pdfIn PDF document text
    • http://files.mrstartroom.com/uploads/1/3/2/6/132680852/1931012.pdfIn PDF document text
    • http://files.fcaky.com/uploads/1/3/1/3/131383892/988875.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/1/0430/9201/7305/files/88252951383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/59768220649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7228/2008/files/sumerizovuralalisu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0544/2209/files/kuviwasowixokupad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30899714004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/normas_internacionales_de_auditoria_interna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/90845167053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2934/9030/files/30712662138.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1932/files/noes_de_administrao_financeira_e_oramentria_concurso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/induction_motor_speed_control_using_fuzzy_logic_controller.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9307/1774/files/julimulofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1283/3959/files/19200211423.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 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_off00026879.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26879 5604 bytes
SHA-256: a7be75464f4bf938ee71f9cce7c538747ae0c6717a375cdc744468a77087c6ce
font_01_sfnt_off00027b0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27B0A 11812 bytes
SHA-256: 0ce3eb993778132a0c54d7fb3c68d42f073efe1b88339c9bc290f5d37529622d

Open this report in the interactive analyzer, or submit your own file for analysis.