Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbb43f3f4c13528b…

MALICIOUS

PDF

40.7 KB Created: 2020-08-17 13:33:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 336b25aef02001799710095e309df2df SHA-1: 2359af3f108aa9aa302721ba62f0992ee98db0cc SHA-256: cbb43f3f4c13528b8d53c55d91d330ebadd80187446d90402ab4af8c68db24d5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which are designed to lead users to external websites. One of these links, 'https://ttraff.com/pify?keyword=baby+doll+sadri+video', is identified as a known malicious redirector. The document body contains garbled text but also includes the same malicious URL, suggesting an attempt to disguise or obfuscate the malicious intent. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious redirector attack pattern.

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=baby+doll+sadri+video In PDF document text
    • http://karusoguw.smithdonnelle.com/uploads/1/3/1/3/131379070/92cb9348057a25.pdfIn PDF document text
    • http://xamuj.symphoniejeunesse.org/uploads/1/3/1/3/131380600/fejurawapupo.pdfIn PDF document text
    • http://files.streettattooevents.com/uploads/1/3/2/8/132814990/608004.pdfIn PDF document text
    • http://files.alakazamtravel.com/uploads/1/3/1/4/131483336/9203928.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/1/0448/4517/0850/files/statistical_analysis_for_data_science.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4551/9513/files/dictionnaire_bilingue_anglais_franais_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6346/6391/files/ikea_wood_platform_bed_frame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5333/3145/files/48898380890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2715/8424/files/pesukipisulupixosabepono.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1181/6099/files/mepaxutal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/2020_weekly_calendar_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1941/0335/files/trigonometry_in_astronomy.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 4

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_off00004a66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A66 4772 bytes
SHA-256: 3fc26c4e67923b54bc7d0f630f1ec0c7b93ac5165bd66a32ea95d506755480a1
font_01_sfnt_off00005aa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AA8 14024 bytes
SHA-256: dc18ab5a2fc08f4c55f76797ef824e6272e55706db14c1faaa41de95074c4cb9
font_02_sfnt_off00008664.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8664 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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