Malicious PDF — malware analysis report

Static analysis result for SHA-256 47b0f5f420f26f27…

MALICIOUS

PDF

42.4 KB Created: 2020-08-20 03:21:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10dcecc9dfa6ad2512c146f950355c4a SHA-1: a321cb369ec0ae541936165b550bec42bd98b0e8 SHA-256: 47b0f5f420f26f27b6e755953f4f0d68ec6572c7e1afd578b4304a1a3bdc0cfa
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'. The document body, though heavily obfuscated, also contains this URL and references 'Avast antivirus apk free', suggesting a lure for potentially unwanted software or further malicious downloads. The presence of a large number of embedded links, many pointing to Shopify domains, indicates a link farm designed to obscure the ultimate destination and potentially manipulate search engine results.

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=avast+antivirus+apk+free In PDF document text
    • http://files.faceworksnailpolish.com/uploads/1/3/1/8/131856769/puworaweseja.pdfIn PDF document text
    • http://sazimasa.citygrowspgh.com/uploads/1/3/1/6/131637395/rorivum.pdfIn PDF document text
    • http://files.mywmspta.com/uploads/1/3/2/6/132681028/3706291.pdfIn PDF document text
    • http://gasufovit.welshproms.com/uploads/1/3/0/7/130776783/padeji.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/1/0437/1690/3080/files/behringer_x32_compact_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9362/2935/files/karatibamubif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6127/0935/files/cornelius_cardew_treatise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/mugesib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5879/8492/files/95336014143.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9045/0334/files/rixejuxoroduge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6905/5911/files/vizaxoxanulenelutunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6640/6552/files/wurovi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0351/8882/files/42727258919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7537/1162/files/kajalosukiwadi.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_off00005467.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5467 4976 bytes
SHA-256: 874db7cee627a543abada270a0b17521688d0f5cf39227315986644904400b97
font_01_sfnt_off0000656c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x656C 9960 bytes
SHA-256: ad931cf44f3730ef2c6b445f2a38d5369424e733c12bbebc33f55958c75e8085
font_02_sfnt_off000087c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C8 16144 bytes
SHA-256: 18f56b7fae04e07bc119a468ad323bdda099da77b0772854d1c47cc1f39b9f3b

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