Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3dc8b4395b3e222…

MALICIOUS

PDF

47.0 KB Created: 2020-10-28 03:41:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63ccde9f16440e596ac85bd0edf72205 SHA-1: 79bf0fb13b2eace623c4199d3fae74eacf62f713 SHA-256: e3dc8b4395b3e222ebd7cf8e8ae7cf96a0234ad564b72349ba4c88867cfb0027
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a search result for D&D content. This suggests a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate malicious intent, likely to redirect the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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/123?keyword=dnd+5e+raven+queen+stats
    • https://cdn-cms.f-static.net/uploads/4379387/normal_5f98bacf79176.pdf
    • https://cdn-cms.f-static.net/uploads/4369316/normal_5f920a385eab2.pdf
    • https://cdn-cms.f-static.net/uploads/4365545/normal_5f872cbcb3680.pdf
    • https://cdn-cms.f-static.net/uploads/4389599/normal_5f98a3f7e49c9.pdf
    • https://cdn-cms.f-static.net/uploads/4415321/normal_5f98a3c7f3fc7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0500/1406/0702/files/lei_zhang_purdue.pdf
    • https://cdn.shopify.com/s/files/1/0500/1258/6176/files/thinking_with_mathematical_models_investigation_2_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2623/files/scotland_modelling_the_epidemic.pdf
    • https://cdn.shopify.com/s/files/1/0496/2815/1959/files/disoda.pdf
    • https://uploads.strikinglycdn.com/files/ba27ce04-7812-4608-967c-5602c667c454/61525759229.pdf
    • https://uploads.strikinglycdn.com/files/f33d9091-cb1a-4588-81dd-970738ecc614/sanofunolinisajotunudoni.pdf
    • https://s3.amazonaws.com/viboxikuz/38606893439.pdf
    • https://s3.amazonaws.com/jusuberu/zewinekelibibuzubomak.pdf
    • https://s3.amazonaws.com/tetazino/tefujuzinogilulimoxo.pdf
    • https://s3.amazonaws.com/lejivugeleguwod/kp_astrology_books_free_download.pdf
    • https://uploads.strikinglycdn.com/files/46f8775f-a4e9-4e58-973a-d0346bf84f46/jijatad.pdf
    • https://uploads.strikinglycdn.com/files/05a941ee-9fbd-4a27-8903-20300696bc09/jeraxu.pdf
    • https://uploads.strikinglycdn.com/files/00ca9163-3aec-4c06-8759-b8cbb937415c/bass_pro_shops_xps_charger_manual.pdf
    • https://uploads.strikinglycdn.com/files/dcf7a8ab-4fb3-4d4b-8d82-41776256233f/the_miniatures_page_bill.pdf
    • https://uploads.strikinglycdn.com/files/5c18967e-5764-4f58-b9c7-a7661fc90d7d/tozopotixazi.pdf
    • https://uploads.strikinglycdn.com/files/d7969e2e-825d-458f-9c1f-256c3530ca90/50003827859.pdf
    • https://uploads.strikinglycdn.com/files/215e75f5-504c-4248-be7a-81dc404c125b/pekete.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a0a.bin
af8c266be5e950511ad6515399b188873d53a2249053c10648f69140658d6ed2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0A 5096 bytes
font_01_sfnt_off00008b72.bin
1aba81ed34edb6182b5b5a92e2fdf24130fd970b2d9f4645b32640ad8573dd2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B72 10292 bytes

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