Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d70d2d9a38da146…

MALICIOUS

PDF

41.0 KB Created: 2020-08-23 23:21:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d703c6cb0baaeb97545046210181c3ef SHA-1: 9cbcdf6d3694db16563358a1c742680599afb4ef SHA-256: 0d70d2d9a38da14630924acfe1c56d859b17a245227e0dc8ca1d57a61bc4b0d8
170 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service that ultimately leads to malicious infrastructure. The document body, though heavily obfuscated, contains references to software downloads and URLs, suggesting a phishing or malware distribution lure. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=coreldraw+x6++filehippo In PDF document text
    • http://wumiposem.markpaschltd1.com/uploads/1/3/1/0/131070420/17f2680fb7e2962.pdfIn PDF document text
    • http://files.enlightenthejourney.com/uploads/1/3/0/9/130969399/bumexojanuv.pdfIn PDF document text
    • http://xowafed.dougansmith.com/uploads/1/3/0/7/130739415/genamopoweputepibufo.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/1/0432/3685/1874/files/risk_management_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4901/7756/files/5938373887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/85661730214.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/52864878340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1235/7270/files/article_370_and_35a_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7069/3284/files/15224373828.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3967/7861/files/aa_plus_driving_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4649/3605/files/4723187798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2398/3001/files/aircrack-_ng_mac_os.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7300/2906/files/72923961722.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 2

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_off0000622a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622A 5168 bytes
SHA-256: f1d654b34e18f52b86ab09622de8d6d5620f772c6b7add6a621216eab1bfe38b
font_01_sfnt_off000073cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CF 10452 bytes
SHA-256: 90fba0fd53d4bb55f1a68316ca6c1c9746829664be3afa6428491029fe755946

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