Malicious PDF — malware analysis report

Static analysis result for SHA-256 077d7766aa843907…

MALICIOUS

PDF

49.0 KB Created: 2020-08-21 23:48:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8247b18382617cc2de9bf0def1337c28 SHA-1: d8cda2ab957b5f9c10bbd66f623adfa8e9c4dda0 SHA-256: 077d7766aa84390755fe9fbfc9cc77036d310943ede58719e088f34a5d1a79c2
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm designed to distribute malware or phish users. The document body and embedded metadata indicate it is masquerading as a download for 'Appium 1.8.0 for mac', a common lure for software downloads. The presence of embedded URLs and the ML classifier's high confidence score support the malicious verdict.

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=appium+1.+8.+0++for+mac In PDF document text
    • http://guwemimef.megadryforce.com/uploads/1/3/0/8/130874284/werimu-sawujasit-kuguzosagejixe-fujusurivava.pdfIn PDF document text
    • http://duxuvama.kennysmithfreedomfoundation.org/uploads/1/3/1/3/131383791/3950176.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/1/0431/5555/4458/files/69634987789.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7617/2441/files/arihant_maths_books_for_competitive_exams_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6597/4690/files/vovulusomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/zixemawamakubelebimebipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3799/0805/files/48924472371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0521/3846/files/95416857717.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1498/7674/files/examen_ser_bachiller_2020_sierra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/dagekosalarakutudefowug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5649/5769/files/pubigapib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4565/0586/files/advantages_of_technology_in_society.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0034/7299/files/selusumoburovazenil.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off00006b59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B59 5360 bytes
SHA-256: bc50bff0b16c616c32f5e523eac776885631d76044bc52020d897bc9db3f28f9
font_01_sfnt_off00007d84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D84 10512 bytes
SHA-256: 702d9cdaea6572a77588e1087415a1fdc93c0f84c3dec859e5d5ad2b384962be
font_02_sfnt_off0000a1a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1A0 16232 bytes
SHA-256: b2cbfceaf44fc4a56d1321c5677f125dfbde6a5f8c873b6a17361dd7c2aa5302

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