Malicious PDF — malware analysis report

Static analysis result for SHA-256 235a47926636f64b…

MALICIOUS

PDF

137.5 KB Created: 2020-08-11 03:26:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ad4de20b2020be5090c4badbf858f95 SHA-1: 4fdd104d8fb5b375efa5c2879fb264e77c982184 SHA-256: 235a47926636f64b1afbffd09b79889009c90b240fd80674c5cef12011ca6da1
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as a link farm for SEO purposes, with the primary malicious link redirecting to a known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that is also present in the heuristics, indicating a phishing or scam attempt. No scripts were extracted, but the presence of malicious redirector links strongly suggests a phishing or content-luring attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.cc/pify?keyword=buddha+meditation+techniques+pdf In PDF document text
    • http://jowedawu.gflight559.com/uploads/1/3/0/7/130776485/lolerezuwum.pdfIn PDF document text
    • http://kezuju.siakyriakakos.com/uploads/1/3/1/3/131381078/mexad.pdfIn PDF document text
    • http://zezuda.lyndsdesignhouse.com/uploads/1/3/0/7/130775997/pebade-babigeb-todoka.pdfIn PDF document text
    • http://files.soulalchemyhealing.com/uploads/1/3/1/3/131398242/vuzujoredij_vudol_xarawabarowa_lopalomafi.pdfIn PDF document text
    • http://files.pamaplefestival.com/uploads/1/3/1/1/131164520/a081bf5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.thdl.org/http://www.thdl.org/TibetanIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1147/3571/files/all_cheats_of_gta_vice_city_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7858/8318/files/aprendizaje_basado_en_proyectos_autores.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3166/5562/files/mifipiverud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/competition_analysis_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5337/5897/files/zedifudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/nojusujoraxojowip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2408/9242/files/denukuzujofil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/gisiwaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1637/9816/files/sumofixoxiletesud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7184/8100/files/xuxagawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9282/0647/files/xuzamazapopateboxulusavob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55497749658.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
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlTibetanIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017b99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17B99 18720 bytes
SHA-256: 9ef33014e6fc4bce05626e2d1210af19cc2137fc63deed06ba0d277c700abab4
font_01_sfnt_off0001b670.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B670 5440 bytes
SHA-256: ab7a58ff1344a7710793b0d814c61c9e3127c161fbfb6cf5e467e37db0b49864
font_02_sfnt_off0001c8d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C8D8 18068 bytes
SHA-256: 9d45c7d7140dc38d015d9ad7e36f918332e98ff3f933d443eb65e3854b2eae8e
font_03_sfnt_off0001f0be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F0BE 12952 bytes
SHA-256: 5b98e97e87707c8f9a7f481fb6359923e95e7abb094dbd6c6f9362c244a3f7bf