Malicious PDF — malware analysis report

Static analysis result for SHA-256 452bb5e8d2fa25f6…

MALICIOUS

PDF

45.6 KB Created: 2020-10-16 20:04:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b143df285c8fcc401349c8e94f77e00 SHA-1: 397dab1cf1b1b40143c18871775fe3cddf7ddf97 SHA-256: 452bb5e8d2fa25f6895e058dfe9e95fb4256ca1be24799e8134ddc071d28ef91
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL and keywords suggesting a lure. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, likely for SEO manipulation or to host 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.club/123?keyword=manual+fiat+palio+fire+flex+2020+pdf
    • https://cdn-cms.f-static.net/uploads/4369904/normal_5f881059c5dd8.pdf
    • https://cdn-cms.f-static.net/uploads/4366020/normal_5f878390a7e09.pdf
    • https://cdn-cms.f-static.net/uploads/4367665/normal_5f88c1ec75299.pdf
    • https://cdn-cms.f-static.net/uploads/4369762/normal_5f89d00023c21.pdf
    • https://cdn-cms.f-static.net/uploads/4374518/normal_5f898a7f714ec.pdf
    • https://cdn-cms.f-static.net/uploads/4370092/normal_5f8824f3b1399.pdf
    • https://cdn-cms.f-static.net/uploads/4366008/normal_5f87093ea5831.pdf
    • https://cdn-cms.f-static.net/uploads/4366653/normal_5f87556b48c00.pdf
    • https://ranerenonosojib.weebly.com/uploads/1/3/1/4/131483420/limafebavo_dobobufex_pejitokiga_zikemufigi.pdf
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/girozamesolu.pdf
    • https://dagigokes.weebly.com/uploads/1/3/0/7/130739756/5041229.pdf
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/digokasawuj-jipamuputevuf.pdf
    • https://naxesitigas.weebly.com/uploads/1/3/0/7/130740165/volekem-mufuwazulukexu-forutewotekud.pdf
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/leniniwugezabesobe.pdf
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/leni
    • https://cdn.shopify.com/s/files/1/0498/7309/2766/files/la_interrogacion_en_frances_ejercicios.pdf
    • https://cdn.shopify.com/s/files/1/0484/3490/5240/files/words_with_er_in_them.pdf
    • https://cdn.shopify.com/s/files/1/0268/7326/6352/files/sugar_free_twizzlers_calories.pdf
    • https://cdn.shopify.com/s/files/1/0501/4919/5937/files/7868928782.pdf
    • https://cdn.shopify.com/s/files/1/0266/8829/1003/files/compare_and_contrast_painting_and_drawing.pdf
    • https://uploads.strikinglycdn.com/files/606abf35-e78f-48bf-99be-3da5e35fc5a0/lusigitimelatuke.pdf
    • https://uploads.strikinglycdn.com/files/da62ea7f-4908-41fa-99c3-be177f32bf7b/25883805566.pdf
    • https://uploads.strikinglycdn.com/files/59102f22-fa02-4d41-841a-2a670f1e2cc8/kezinesideneviwaromet.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_off00007521.bin
002f1ac8b29206ffcd2a00190742b1a2f0f0617128c32dbe43c82b2c18ef31e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7521 5204 bytes
font_01_sfnt_off000086ef.bin
65cf17bd9892fbdc3a0b89cd5af2003da7b332fad0db9c4030e0104f1372c75d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86EF 10068 bytes

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