Malicious PDF — malware analysis report

Static analysis result for SHA-256 e054e0142944f77b…

MALICIOUS

PDF

143.1 KB Created: 2020-09-13 02:53:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: be37cb84006a7adea364ede2febc3fc3 SHA-1: 729a98f35da8f4fa1f3020bb1e21288cc76f7eb7 SHA-256: e054e0142944f77b18827ccebce6e155cc810877fddeb068645ab3433a9fd897
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector link farm. The primary URL, https://ttraff.me/wix?keyword=la+revolucion+mexicana+san+juan, is flagged as malicious. The document body, though heavily obfuscated, contains this URL, suggesting the document's purpose is to drive traffic to this malicious site, likely as part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.me/wix?keyword=la+revolucion+mexicana+san+juan In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/73cb9e_f95a404b2a8f4b538a5f3ba4f3a3d90e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/217d68_f8eb033e31de4f978a27ba29788f6036.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4bdc6d_29ca625e76514ef5b7af360665fbdcc1.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5926b4_f584adf744194bf9a92c92acc6895712.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/86319b_263ae8583b94410398672f6376f2d314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/change_bitmap_image_to.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4587/7922/files/25831518562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/49006105737.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1062/9532/files/tezojupiporevevipo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/1485/1240/files/89034075802.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b972d5_084438c5874e4e029a5d93dcae7c8134.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c3f88d_4b50ef6e464c47eb9eca6c7fef4e2d6a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/8d5d69_a94a9f6c17574555a94235105bc7d051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7628/0729/files/piweluxobaxaluzelipevebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/8625/0914/files/84905925068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/dakupilegiruv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2956/9434/files/tnpsc_forest_apprentice_answer_key_2011.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9171/2405/files/5822091016.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001ea73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1EA73 3048 bytes
SHA-256: 3d664b9550aaaa08def116d5cbba5657b5005d205d640ad01ac92b1d91e4037d
font_01_sfnt_off0001f53f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F53F 5088 bytes
SHA-256: 6cdd44dcf67a784702376824eebf3ff0c8f6c88fe58a9ac1a38ab55e2a64d6e7
font_02_sfnt_off00020685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x20685 11616 bytes
SHA-256: 6d95c02edb48e46850c34ca6993db6ffae4b276f31d32b99aeed528b37546b6a

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