Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb028643bb64d319…

MALICIOUS

PDF

325.7 KB Created: 2020-08-24 01:27:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62295526573312b88aa11cc331b315ea SHA-1: ab1fc7247c89d37b0d8a3b6def327cd874f12947 SHA-256: fb028643bb64d319359d4b00fea155c8fc80b342f3f9d553ae57ea8d715ed92e
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=janssen+pharmaceuticals+inc+annual+report'. This URL is associated with advance-fee scams and callback phishing lures, as indicated by other heuristic firings. The document body, though heavily obfuscated, also contains the same URL, reinforcing its malicious intent. The file was generated by wkhtmltopdf, a tool often used to create PDF documents from web content, which can be leveraged for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=janssen+pharmaceuticals+inc+annual+report In PDF document text
    • http://files.susan-mcmahan.com/uploads/1/3/0/9/130969580/c4d958c9a960.pdfIn PDF document text
    • http://files.traceymackay.com/uploads/1/3/0/7/130740625/mepirujixubokejil.pdfIn PDF document text
    • http://files.diagnosticequipmentstore.com/uploads/1/3/0/7/130739993/rafivijofakad-juruxabida-wusivupetu-wolewubafosav.pdfIn PDF document text
    • http://kojusoj.teamblendedbeauties.com/uploads/1/3/0/9/130969265/panor.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/1/0429/1421/8151/files/dirisaletubog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jikas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7685/9544/files/domain_and_range_worksheet_7_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2798/8385/files/bluestacks_pubg_mobile_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/7337/2059/files/bafg_antrag_formblatt_1_zeile_75.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/convert_to_word_file_using_python.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/taylor_series_expansions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2181/1364/files/wotur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8170/9206/files/75573771483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2035/2677/files/17914886891.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 4

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_off0004c425.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C425 5164 bytes
SHA-256: 83ebcc285863a2a940d7b9d151bcea93689b2fc03640df4a30743b4f994965e7
font_01_sfnt_off0004d57e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D57E 16804 bytes
SHA-256: ce9471f58456e3907590ccea8dd08cf1e73a011e24f18ade066297ca898d0404

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