Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fa10ea9e0a28b4a…

MALICIOUS

PDF

46.0 KB Created: 2020-08-17 18:21:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90b6298d4cfe53f664e3021299da506a SHA-1: a43b524442b6e2d59cf436f9b8224d9e8f580054 SHA-256: 0fa10ea9e0a28b4a08ac5375dcc84bffcfc9b46e42fdf5b05e7b414b208f85a9
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains URLs that are part of a link farm designed to appear as legitimate business plan templates. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs points towards an attempt to redirect users to malicious sites.

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.cc/pify?keyword=south+african+business+plan+template+pdf In PDF document text
    • http://files.elkhartcountycovid19.com/uploads/1/3/1/1/131164205/8514947.pdfIn PDF document text
    • http://files.esan-network.co.uk/uploads/1/3/2/6/132696465/8247721.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/1/0427/6987/5111/files/94615969090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4417/5013/files/76212772070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8617/6665/files/devil_in_i_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wonazonuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1860/0095/files/bubifojimavalimevogelelul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/tixudozam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4749/1486/files/bodoland_lottery_result_today.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6504/8229/files/alzheimer_unam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7731/1395/files/jipebuvowemobotikofir.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68B3 5520 bytes
SHA-256: 2d1b4e2e113955002e974a1ed33854648521511436df0045cf33290630a3eb2c
font_01_sfnt_off00007b37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B37 10016 bytes
SHA-256: e7392809d6bb48ad9f3f201c2a4f4d4d96d9b4cec68f9b18371ca39745f0db34
font_02_sfnt_off00009d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9D57 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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