Malicious PDF — malware analysis report

Static analysis result for SHA-256 c12ff7bacb8c5be4…

MALICIOUS

PDF

53.3 KB Created: 2020-08-17 14:41:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b4c1665eae7802dc384139e3d9b5022 SHA-1: 928c839b62d7b1a3e13c785ebb7948287e5b63b7 SHA-256: c12ff7bacb8c5be40abfda8b8e1712779998116e7caed1be667be329ef7163c7
120 Risk Score

Malware Insights

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

The PDF document contains a malicious redirector link disguised as a free Android game download. This link, 'https://ttraff.com/pify?keyword=baixar+apk+de+jogos+para+android+gratis', is designed to lead users to potentially harmful content. The document also features a large number of links pointing to various PDF files hosted on Shopify and other domains, suggesting a link farm or SEO poisoning tactic to increase visibility and traffic to malicious sites.

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.com/pify?keyword=baixar+apk+de+jogos+para+android+gratis
    • http://files.t-mosaic.com/uploads/1/3/2/6/132680853/mazuvugarifaper_wofexirupironud_gitolaroxama.pdf
    • http://files.mistynielsenphotography.com/uploads/1/3/0/8/130813869/e2362b010a.pdf
    • http://simoten.lbennett1039.com/uploads/1/3/1/4/131454065/08ba4df8.pdf
    • http://files.ttminaples.com/uploads/1/3/1/3/131379296/totinivasufuwun-temof-fokol-nasagexabiraz.pdf
    • https://cdn.shopify.com/s/files/1/0433/8669/9925/files/mixed_approach_to_research.pdf
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/nabawotedafonolovobeja.pdf
    • https://cdn.shopify.com/s/files/1/0440/5913/2054/files/alkyl_and_aryl_halides_notes.pdf
    • https://cdn.shopify.com/s/files/1/0433/5281/7832/files/asme_section_viii_division_3.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/zaluxukona.pdf
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/54741532090.pdf
    • https://cdn.shopify.com/s/files/1/0430/4922/2298/files/30779565620.pdf
    • https://cdn.shopify.com/s/files/1/0431/4903/3627/files/42758727307.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e53.bin
1bbf7fc18e93765d8342e0ef7e7a2d5ef783bd620fd41b7c86b6ebe0e4705607		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E53 4780 bytes
font_01_sfnt_off00006ef1.bin
f6b6df3cebd3e84e76f60541871fce0eacbfb1bd6e8e1f63d4f5522a7f8d23c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EF1 5352 bytes
font_02_sfnt_off0000813e.bin
977d55c4c3af4355f2f988086b689a2904d42640a1e21e49133944348a8f02d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x813E 2508 bytes
font_03_sfnt_off00008c6b.bin
6596b5ff5144c65a826387a40167dccda07db25f98b65734087792a0c9079364		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C6B 11720 bytes
font_04_sfnt_off0000b300.bin
9559dd1bd908241551916101fda3d445a26f5c4b506a1423f23393456f9d5940		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB300 16036 bytes

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