Malicious PDF — malware analysis report

Static analysis result for SHA-256 b958256d8d252edd…

MALICIOUS

PDF

118.1 KB Created: 2020-08-14 13:49:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ad2eb0ff81aba217c3d667f75565b00 SHA-1: 2e165b14710e8c242fb60396779a9cbd271bdc42 SHA-256: b958256d8d252edd27fb7780162fcc315764c51472365b2881492fa13c446667
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is associated with malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be part of this redirection scheme, suggesting a phishing or scam attempt. The ML classifier also strongly indicated maliciousness.

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=oriflame+catalogue+pdf+january+2019 In PDF document text
    • http://xogekiwom.bigfootcasefiles.com/uploads/1/3/2/3/132302921/8480099.pdfIn PDF document text
    • http://files.creativitylessons.com/uploads/1/3/2/6/132681670/dikujopatop.pdfIn PDF document text
    • http://files.melwycked.com/uploads/1/3/2/6/132682829/7338453.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/1/0429/3584/5017/files/74232984919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8279/2612/files/learn_colloquial_arabic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8589/7627/files/zaxifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3224/7445/files/tagajawinaduwufalowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7319/files/medozosumipokuzuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9038/5821/files/60574244790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4605/0714/files/nursing_leadership_journal_articles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1451/9966/files/integrated_livestock_farming_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3459/0875/files/68103548643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3600/6817/files/sosimofuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/culinary_institute_of_america_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5082/6905/files/39346571633.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

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_off00016b92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16B92 7888 bytes
SHA-256: 69e0a1fb5472a1bd81d5178694d72cf6f00b8832472ff60a95a2cc6049263e3c
font_01_sfnt_off00017fe8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17FE8 5984 bytes
SHA-256: da9e2bc14937ca8b37981d64d88b9b80821051a1d9522fec07c01ad50abfc8c5
font_02_sfnt_off00019447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19447 17656 bytes
SHA-256: 1f5d94b7fe7754c9be79a359e59193c5e9210327270cb6405ddc71a9476f5a09

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