Malicious PDF — malware analysis report

Static analysis result for SHA-256 db57d5bf31d2f844…

MALICIOUS

PDF

35.1 KB Created: 2020-08-19 16:23:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 772467ec62010b60bd325f454156d360 SHA-1: 68cef7f17dda79b493fea0a81bc1724acd4971be SHA-256: db57d5bf31d2f8448593414ef2b4ceffffe8858b857cf82e8f936ba6800f534c
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lure users into downloading further malicious content. The document body, though obfuscated, contains the search query 'vtech kidizoom action cam 180 manual', suggesting a lure to find product information. The PDF also hosts a large number of external links, many pointing to Shopify-hosted PDFs, indicating a link farm for SEO manipulation or traffic redirection.

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=vtech+kidizoom+action+cam+180+manual In PDF document text
    • http://files.inachildsname.com/uploads/1/3/0/7/130740249/1593603.pdfIn PDF document text
    • http://files.terralumen.com/uploads/1/3/1/8/131871658/bibududufovakizabu.pdfIn PDF document text
    • http://suvut.thegiftofsustainableliving.com/uploads/1/3/0/7/130739017/wawolizegur.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5852/7394/files/97200685963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5679/8627/files/38925702491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/78037513355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/95394580584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1753/3597/files/64811580798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3518/1734/files/caatinga_bioma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3289/3857/files/pdf_agama_islam_kelas_xii_kurikulum_2013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9109/1875/files/13771911374.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 7

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_off00003f22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F22 5256 bytes
SHA-256: b1e4f06bbb0db04a51d9d838d5f2aec6ef1d4aa6dbc61af7c850e59626e25e88
font_01_sfnt_off000050de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50DE 9600 bytes
SHA-256: dc8afffab812862bcc0c965dd6a0525ca162b0aef283f2c48ba2a9d9f255be7a
font_02_sfnt_off000071be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71BE 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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