Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e7d772524ef5270…

MALICIOUS

PDF

149.7 KB Created: 2020-08-06 03:39:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c48453b8e7029806328231653a843c65 SHA-1: 30ed38ee26034c578ef4471260153934afb03176 SHA-256: 9e7d772524ef527031681cb17e6a9c97638a0ca275df56aff6551c116fb4f483
134 Risk Score

Malware Insights

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

The file is a PDF document that employs an advance-fee scam lure, as indicated by the heuristic 'SE_ADVANCE_FEE_SCAM_LURE'. It contains a link to a known malicious redirector, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The embedded URL 'https://ttraff.cc/pify?keyword=approximation+algorithms+pdf+vazirani' is the primary indicator of malicious activity, likely leading to further stages of an attack or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=approximation+algorithms+pdf+vazirani In PDF document text
    • http://files.dustinmarquel.com/uploads/1/3/2/6/132695569/4bd9bc4e4ad.pdfIn PDF document text
    • http://files.thevorsters.com/uploads/1/3/1/8/131856556/fosilegarib-dazawonokaz.pdfIn PDF document text
    • http://files.hashomershnat.org/uploads/1/3/0/9/130969847/fogudara.pdfIn PDF document text
    • http://files.southlandvs.com/uploads/1/3/0/7/130776735/4fb8274ee8089.pdfIn PDF document text
    • http://files.jadihomes.com/uploads/1/3/2/7/132740413/xasabowopi.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/1/0438/6576/8096/files/muvaxopabisezulutiwamuba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3345/1926/files/95725360656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7250/4483/files/nekulupipiganeroxotasifar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8929/7568/files/26176538125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4694/4416/files/76397967965.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/2nd_grade_suffixes_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zupapinited.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7221/6483/files/kasesenebuzetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5897/8207/files/nisilagadujutirolusaguwid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3070/8375/files/18201044424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/mr_boston_official_bartender_s_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0470/7491/files/muxof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0813/4053/files/sample_financial_ratio_analysis_report.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20142 5620 bytes
SHA-256: 4ab0a9ce70f9723bc5434610664ae9a7318f476d89453fe3d580774c08704b55
font_01_sfnt_off00021445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21445 17148 bytes
SHA-256: 6d0713b9e64d23aadfdd7ccc8096f8006e67032e595ef322bbdb43c87c31cbbe

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