Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2a0b76e153ff2fe…

MALICIOUS

PDF

38.7 KB Created: 2020-08-21 09:49:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: acd1dcc069939a84482f64b1e1c99d69 SHA-1: 95b787c2acc4a71e94a69cd7fe5404aff592d3b5 SHA-256: f2a0b76e153ff2febe1e618a7626215d448651e8038ac76020e6ae3d9b586a0f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, contains text related to 'light reflection and refraction worksheet' and the malicious URL. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to obscure the malicious redirector.

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=light+reflection+and+refraction+worksheet In PDF document text
    • http://fofopojal.holisticvoicecoach.com/uploads/1/3/0/8/130874104/d29e0361554d4b0.pdfIn PDF document text
    • http://files.darebritannia.com/uploads/1/3/1/6/131637137/rebadamijoro-renufijabotofi-fanojugabufo.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/1/0430/6694/9786/files/part_1910_occupational_safety_and_health_standards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2381/0203/files/6022671463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8176/0935/files/50543003136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7090/5750/files/nemipirakaxugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0726/1341/files/68967793825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7950/6847/files/anlage_v_steuererklrung_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/vosevad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2349/0457/files/60751110488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7628/7648/files/xerogevixotiwuxiwofo.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_off00004b03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B03 5168 bytes
SHA-256: 5426ec0430059b8deefde6d5c670bf6bf3ed2bb8de725cf386495991cc782087
font_01_sfnt_off00005ca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CA4 10444 bytes
SHA-256: 02fc95cac6198bd7a011c0eb97fa9db7dce75fe3951ebbd28a091e43a6633635
font_02_sfnt_off00007fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FC4 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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