Malicious PDF — malware analysis report

Static analysis result for SHA-256 93be937e69d03458…

MALICIOUS

PDF

55.3 KB Created: 2020-08-22 11:59:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a862a59eb7edb8c055db6db1434dae7f SHA-1: e6f960db86eeac903684b49133f89e8e22d1d03a SHA-256: 93be937e69d03458c35f872c9d1fc1c79cb39cb335d9dbde98ec6d9737eff44c
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, identified as a link farm for SEO purposes. The document body, though heavily obfuscated, contains the primary redirect URL, suggesting an attempt to trick users into clicking through to malicious content. No scripts were extracted, but the presence of multiple malicious links indicates a phishing or malware distribution attempt.

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=metric+unit+conversion+table+worksheet+answers In PDF document text
    • http://files.orthodoxservantleaders.com/uploads/1/3/0/8/130873975/dojatizep.pdfIn PDF document text
    • http://files.ronandthaophotography.com/uploads/1/3/1/3/131381607/pipixubujata-kapepupixevoded-juxizavafuj.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/1/0446/0979/8307/files/69982963731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7352/8213/files/5732592653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7354/9974/files/lokenunugibavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4854/3142/files/jirilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1086/7871/files/dojuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9573/5976/files/aranyak_bibhutibhushan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/www_masrawy_coom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0092/7132/files/cash_flow_statement_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3418/0769/files/97849003967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/7079890992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1400/5407/files/black_opera_mini_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4942/6845/files/copy_sqlite_database_from_android_to_pc.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81F2 2828 bytes
SHA-256: 85b692c1c636aed9ab1240d2a7361179fdd6c0849396a06064984f922e967b4f
font_01_sfnt_off00008bec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BEC 5128 bytes
SHA-256: da7f3b18636b80cee0dd311538fe01c0eb0873a63ecc34f94f88b76c38140679
font_02_sfnt_off00009d6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D6E 9876 bytes
SHA-256: 29e46a8c80b83f8af7db25f67c9d8abf0b70e6b382039eac3c9e69248939818d
font_03_sfnt_off0000bf3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF3B 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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