Malicious PDF — malware analysis report

Static analysis result for SHA-256 99c12050847f8275…

MALICIOUS

PDF

47.0 KB Created: 2020-08-15 07:39:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ca32904fe72727716cdf48e45186316 SHA-1: 66b07b9690c5396821d42db7312162bb1981bad6 SHA-256: 99c12050847f827558b02b404755bd61cd9cb3a661f6323fdd298b3b2294efc3
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the primary malicious URL and appears to be a lure related to 'Apple music files to pc'. The presence of a malicious redirector suggests an attempt to lead the user to a phishing site or a malware download page.

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=apple+music+files+to+pc In PDF document text
    • http://files.unidadepastoral.com/uploads/1/3/1/4/131437351/195585ef.pdfIn PDF document text
    • http://files.alba-a-new-dawn.com/uploads/1/3/1/1/131163859/sanodix.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/1/0431/5509/5708/files/41356030992.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5913/2054/files/kodefobesawaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0133/9304/files/8634382463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/map_of_the_united_states.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/87543935686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4655/2227/files/datukojosute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7410/0127/files/48339232963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8379/2533/files/vexugiwezofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8800/2710/files/pibejinezep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9238/5700/files/goxifitevovilomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8250/5637/files/29632414349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4935/2349/files/90169573310.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_off00007af7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF7 4844 bytes
SHA-256: cea291b0ddabfe33989583f781f8415fb6cbe40bc83a6eed4efd5e6225362328
font_01_sfnt_off00008b67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B67 10536 bytes
SHA-256: 030c4d5b4a2f5bb956e5f09f20e8b461cbaf580986e90e315b498b5c85b30e25

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