Malicious PDF — malware analysis report

Static analysis result for SHA-256 93c161393356c6f4…

MALICIOUS

PDF

42.8 KB Created: 2020-08-12 10:52:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d7633de1362c894031bc00ac0733e21 SHA-1: fbbbc8bee4bc08cd3639ebd7fd322912f68227e5 SHA-256: 93c161393356c6f4b20f71aa5e77f4889fb39e5efb805a5b916bf743b403bd1e
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=almera+n16+service+manual+pdf', is designed to lure users by appearing to offer a service manual. The PDF also exhibits characteristics of a link farm, embedding numerous external links, many of which point to Shopify domains. The primary malicious link likely serves as a gateway to further malicious content.

Heuristics 3

  • 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.
  • 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=almera+n16+service+manual+pdf
    • http://files.mercedesugarte.com/uploads/1/3/0/9/130969761/pibufuzuxot-kazaj-suluvuxesuru-manopoxoratolu.pdf
    • http://files.benbodnarfilms.com/uploads/1/3/0/7/130738614/rikivenejovur.pdf
    • http://files.thefitnessroom.ca/uploads/1/3/0/7/130776724/voguwekegejedaravab.pdf
    • https://cdn.shopify.com/s/files/1/0438/2241/6029/files/baraton_university_fee_structure.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/utensilios_de_cozinha_em_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0429/4764/1510/files/foxigiliwogusa.pdf
    • https://cdn.shopify.com/s/files/1/0434/5993/6421/files/newel.pdf
    • https://cdn.shopify.com/s/files/1/0429/1215/3766/files/67951593960.pdf
    • https://cdn.shopify.com/s/files/1/0433/7532/9441/files/pip_install_matplotlib.pdf
    • https://cdn.shopify.com/s/files/1/0431/3314/1149/files/adjetivos_en_ingles_y_espaol_para_describir_personas.pdf
    • https://cdn.shopify.com/s/files/1/0431/0607/4780/files/zejatosixesoz.pdf
    • https://cdn.shopify.com/s/files/1/0435/2914/2426/files/banking_preliminary_exam_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/6844/8165/files/77594027889.pdf
    • https://cdn.shopify.com/s/files/1/0432/7853/2761/files/28659797924.pdf
    • https://cdn.shopify.com/s/files/1/0438/3444/1885/files/37894306038.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c4a.bin
a98c75ad5994208e507c894a1fe567b2f50554be11745cc0c3fbe796d68c8bb1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C4A 5556 bytes
font_01_sfnt_off00006f1c.bin
4837704d5331ebb2ec5fe55a10c59a5df57693fd0555b0005a856da7de0642f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F1C 15384 bytes

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