Malicious PDF — malware analysis report

Static analysis result for SHA-256 db35a329595e224b…

MALICIOUS

PDF

56.6 KB Created: 2020-08-15 22:03:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a7c2ff56e0a52d2bae37bfd95a980156 SHA-1: f37bb324e415a0a9c43320aad85a94eb676ea55e SHA-256: db35a329595e224b964e4d470be4ea8c96aa358d5dc424ba9dbdc053ca167775
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to a redirector service (ttraff.cc) known to host malicious content. The document body, though partially corrupted, also contains the same redirector URL and a large number of benign-looking Shopify URLs, suggesting a link farm tactic. This indicates the primary purpose is to lure users to malicious sites.

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.cc/wb?keyword=maths%20worksheets%20for%20grade%208%20cbse%20syllabus In PDF document text
    • http://segizarav.mandala-ou.com/uploads/1/3/0/7/130775413/a1035e13cb2e73.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/1/0433/3935/0181/files/jurnal_mol_bonggol_pisang.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2579/1133/files/pst_to_hawaii_time.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8098/2432/files/20797883056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2205/6600/files/tewoxekamavarodipogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/pazegexuvagusapasetulekex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/voxovifilodibivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9970/7810/files/voxedabafuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1491/3191/files/batman_arkham_origins_strategy_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/sheet_metal_gauge_weight_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5386/6408/files/cameron_highlands_tourist_map.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000061a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A4 5608 bytes
SHA-256: 32efd18cdd4e49fc70c349a06334b5b1d4e353fa029d664a7a411c8053981b9b
font_01_sfnt_off000074e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74E5 7144 bytes
SHA-256: 1b7399783cab615e72726ee69b5abd8c87986855270aba2b66736f2ef3c29daf
font_02_sfnt_off00008903.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8903 10480 bytes
SHA-256: 24adf9c7b92e12767e64fcb5bfbe0b477a56bf8a27f4b350326dbe81fbdbc886
font_03_sfnt_off0000acd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACD8 17492 bytes
SHA-256: c1e6ffc75750c5739b28184ea098192487e1c360ff13057a509a4a6bbbe05e79
font_04_sfnt_off0000c629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC629 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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