Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d1504643f490506…

MALICIOUS

PDF

42.1 KB Created: 2020-08-17 11:38:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 34f302c58a5d1eeb716de1acd059b382 SHA-1: b1bd950149d7e5d2e67be7146ae859ff28e877bb SHA-256: 0d1504643f490506f4464b00197e9e460189a57a8f828190769cf6db2b6fd3a1
162 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a high number of embedded links, many of which point to redirector infrastructure. The document body contains obfuscated text and multiple URLs, including a suspicious redirector URL that appears to be part of an SEO link farm. This suggests an attempt to either distribute further malicious content or manipulate search results.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=cassandra+datastax++for+windows In PDF document text
    • http://files.agbole.com/uploads/1/3/1/8/131857465/9918a2c.pdfIn PDF document text
    • http://joxura.acdawv.org/uploads/1/3/0/7/130739072/zigudobiguwuvepi.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/1/0427/7728/0671/files/ledexumudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/58409505088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3947/2288/files/contemporary_approaches_to_leadership.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gojifazuxosupimuron.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9213/1484/files/bollywood_sheet_music_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7321/6411/files/ximejogozuxaxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/59235581491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1605/1112/files/l_tranger_albert_camus_livre.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/84252840203.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4419/9829/files/chavacano_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5498/0505/files/zuwexozagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/31071453718.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 4

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_off000066e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E9 4936 bytes
SHA-256: 08d93954f94b7fa6081ee10a2ced3f55df9d2bd8195c1fbed62915f8321a2a46
font_01_sfnt_off000077d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D5 10384 bytes
SHA-256: eff81c5c3ba998d4d57cb4eaf820c2f4a3282bb5cf767a8dfad3642a2c18a0c0

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