Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2ad9b256faa887c…

MALICIOUS

PDF

45.0 KB Created: 2020-08-12 07:04:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0a9dcc795e235e9fde489e6f7c5a5a6 SHA-1: 6fcb0b83e0f1f7b30be7cfd39cbfd7df88c7a60f SHA-256: d2ad9b256faa887ca51e1d26910ce126e86fd9cd7931fe105521123c4a678459
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a redirector service (ttraff.cc). The ML classifier strongly flagged this PDF as malicious. The presence of a malicious redirector link suggests an attempt to lure the user to a malicious site, likely for phishing or malware distribution. No scripts were extracted from this sample.

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/pify?keyword=canal+av+desbalanceado+pdf In PDF document text
    • http://files.lighthouseorthopaedics.com/uploads/1/3/1/4/131455722/1840060.pdfIn PDF document text
    • http://files.burntofferingsbbq.com/uploads/1/3/1/8/131871554/5b2c7092.pdfIn PDF document text
    • http://nokiwuma.cveducators.org/uploads/1/3/1/1/131163960/wozaguvavojidob-nobiranudofatom.pdfIn PDF document text
    • http://files.msseven16.com/uploads/1/3/0/7/130775446/pipukazogawema.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/1/0433/4052/9816/files/fijoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/zinituk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8855/9782/files/public_finance_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3644/9690/files/biblical_dream_interpretation_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9376/7832/files/bless_the_lord_o_my_soul_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0909/7376/files/venezukavituboj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8039/3639/files/dennis_coon_introduction_to_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/entrepreneurship_skills_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7731/2411/files/getegofupaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7058/7029/files/7681844032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4339/7525/files/vision_ias_current_affairs_february_2020_in_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinavupomun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8231/7975/files/73749019154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5870/8118/files/66983877496.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
🗂 Part of campaign: burntofferingsbbq.com 5 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000733f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x733F 5160 bytes
SHA-256: 7670a7d90faaac287d2843109c430d2da2e7e9a5f4f0d76acfee9907d2ded949
font_01_sfnt_off000084e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E1 9916 bytes
SHA-256: 3349b8def47c66f11cc462d804753cabc8b78b5441f31f3eb9571dae87d4443f