Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e08cbf77fbcc377…

MALICIOUS

PDF

47.3 KB Created: 2020-08-25 04:16:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f46d59cdb86acb21a7fc6a386b78aa76 SHA-1: 10d57d55d51686e7607a19bcd3a44ebc35fcd11a SHA-256: 2e08cbf77fbcc37762b61d549d41eae61f2ed3a16e107265d10f25e1390d0629
194 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. Additionally, it contains a large number of embedded links, forming a link farm, with the primary redirector URL being https://ttraff.com/pify?keyword=android_sdk_root+is+undefined+windows. This suggests the document is designed to lure users to malicious sites through a chain of redirects.

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.com/pify?keyword=android_sdk_root+is+undefined+windows In PDF document text
    • http://joworidaz.houseofsephira.com/uploads/1/3/1/3/131398440/8925760a.pdfIn PDF document text
    • http://tavotal.vaporstopgreenville.com/uploads/1/3/0/7/130775768/3464251.pdfIn PDF document text
    • http://files.w-shi.net/uploads/1/3/1/3/131380163/f7b05a3d4cc.pdfIn PDF document text
    • http://waxarav.spotlightlima.com/uploads/1/3/0/9/130968996/4a9c2df951e8c.pdfIn PDF document text
    • http://files.anabeljuarez.com/uploads/1/3/1/4/131452942/8b2f1b09.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/1/0438/2982/1597/files/allergic_reaction_action_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7541/2902/files/sasaxevufenokedopon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9421/6599/files/airlift_movie_300mb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7827/0619/files/40005780389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8720/0418/files/google_sheets_outdent_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/59875783120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepikopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0473/1300/files/busixokutijebifobuvef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0816/2974/files/jenunetibugur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1886/0190/files/25047920129.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 1

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_off000071af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71AF 4832 bytes
SHA-256: 6c1b2713fdeedad2ac4cc52398ebf76a0c66668d94b2557a4a36642b0fe5bb6b
font_01_sfnt_off00008248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8248 14628 bytes
SHA-256: fcf48f716936c6e914e9a43d59b1ad440cce4607f5c491a342cdee875f295a4e

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