Malicious PDF — malware analysis report

Static analysis result for SHA-256 794567e6773ee2ce…

MALICIOUS

PDF

40.5 KB Created: 2020-08-05 14:47:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c5beb6633410c837ef6f34a8d38cf0a SHA-1: 9cd5a03e6f1ab2982bb791afb36834ff77989402 SHA-256: 794567e6773ee2ce5bcb35236648d2e7e55163543f0ec3844668396c1d4de0d1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a malicious SEO link farm, specifically `https://ttraff.com/pify?keyword=arrival+of+the+birds+piano+sheet+music+pdf`. This lure attempts to trick users into downloading potentially malicious files disguised as legitimate documents. No scripts were extracted from this sample, but the presence of multiple links to external PDF files indicates a phishing or malware distribution attempt.

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=arrival+of+the+birds+piano+sheet+music+pdf In PDF document text
    • http://files.hbcindy.com/uploads/1/3/1/8/131856041/sisema-sokeri-rodirupijef-veguxuvagobufi.pdfIn PDF document text
    • http://files.redroomyoga.com/uploads/1/3/2/8/132814306/bekijoka.pdfIn PDF document text
    • http://files.creightonbrown.com/uploads/1/3/0/8/130874042/faxanekew.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/1/0430/6645/8266/files/1995_buick_century_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4814/7867/files/75779585932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/9058/7291/files/ford_e350_repair_manual_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/dotufevevulolerefuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5504/6037/files/5449228151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6666/1791/files/dm_design_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5765/9547/files/20153015346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9565/4564/files/lubavaxatududoniza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8882/2950/files/marlin_anet_a8.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9386/9212/files/mixagafesaperuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77650869017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4389/8019/files/gamifi.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_off00005271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5271 5584 bytes
SHA-256: 97d96dec2ed2d17070a7afcefeec6651cdefac6b9b56df2453a0ca3542beaaa6
font_01_sfnt_off00006549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6549 14392 bytes
SHA-256: 0cb30b4a1102d6d92fc5014a2ed53a4107e3220bf68db1aa580eb77111bf094a

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