Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3b0623d7073c11b…

MALICIOUS

PDF

99.1 KB Created: 2020-07-28 22:26:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e9be0da6a4c4bbc62f4684ec882bd892 SHA-1: e429b20b77f4ae0ddfa974ba047a28f122c36568 SHA-256: f3b0623d7073c11b7ecc24ddc162602b0518bbb82a62e033bc62f28a72611d32
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, forming a link farm. One of the initial links directs to a known malicious redirector at 'ttraff.com'. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and likely contains further lures or exploit code.

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=love+yourself+answer+list In PDF document text
    • http://files.echsafety.com/uploads/1/3/0/8/130814121/mekaradipotulej_noxevitubok.pdfIn PDF document text
    • http://files.thislittlepetshop.com/uploads/1/3/1/4/131455247/wanibebalug.pdfIn PDF document text
    • http://files.kiwanisclubofpleasantgrove.org/uploads/1/3/0/9/130969160/demebavi.pdfIn PDF document text
    • http://files.arturofuentes.com/uploads/1/3/1/0/131070367/6ebffa37da87ae4.pdfIn PDF document text
    • http://files.caffeinatedlearning.com/uploads/1/3/0/9/130969966/c559b7b72624.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/1/0434/8346/3832/files/zerebiwivorilulaxaxefad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4981/0080/files/62395705725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3086/3259/files/welogatewuxumetodagem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3028/1377/files/zosakojamawisubazaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1936/9639/files/fajaxax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5690/5885/files/poxaxevipafixekimuvixole.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9779/2420/files/fuzowezupef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1574/0312/files/mawozujobudopitax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1116/2790/files/12974079290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6118/2617/files/54662425940.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE693 27044 bytes
SHA-256: d28aa79d320121de4d0dba68de3b5fee39b02b2de0f5f7a24fc6c3fd4ad84558
font_01_sfnt_off000139b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x139B1 4836 bytes
SHA-256: cc0efb705ae3bf8ce17d3a80bcceebab8434ac8a0698406a38f1592c5b66530e
font_02_sfnt_off00014a51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A51 17124 bytes
SHA-256: 1cf72de71f660d3fbba0ab47eff1115f2e54825392c40db9b5b3849975df2215

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