Malicious PDF — malware analysis report

Static analysis result for SHA-256 efaf48981af35f51…

MALICIOUS

PDF

45.8 KB Created: 2020-08-16 19:23:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56ce21f2d239ee8a58f8b2c26ee47db0 SHA-1: 8fbc6b18a9e34c9f5da02debb438ee7513137a2e SHA-256: efaf48981af35f51ae54862ea54c8e19796bfca8e51bd0d05b03f94e6bdd0ddf
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=celine+dion+song+love+you+more', suggesting a lure to a malicious site. The presence of multiple PDF links indicates a link farm strategy, likely to improve search engine ranking for 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.com/pify?keyword=celine+dion+song+love+you+more
    • http://toxuno.communitylearningprojectminnesota.org/uploads/1/3/0/7/130775195/9e68cd25.pdf
    • http://files.sidneyshelbychamber.com/uploads/1/3/1/4/131408183/9694856.pdf
    • http://doxolu.greentarafarm.com/uploads/1/3/0/7/130775085/42980.pdf
    • https://cdn.shopify.com/s/files/1/0429/9823/5289/files/tulofi.pdf
    • https://cdn.shopify.com/s/files/1/0432/2341/6987/files/bigasetupolirevabazen.pdf
    • https://cdn.shopify.com/s/files/1/0436/9291/6886/files/24338175962.pdf
    • https://cdn.shopify.com/s/files/1/0438/1927/0306/files/juzgamiento_de_camelidos_sudamericanos.pdf
    • https://cdn.shopify.com/s/files/1/0431/3022/4794/files/wirofilozazijekusikitulo.pdf
    • https://cdn.shopify.com/s/files/1/0429/7749/3146/files/booking_cancellation_email_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/7704/2325/files/fedekorem.pdf
    • https://cdn.shopify.com/s/files/1/0434/2539/8946/files/integer_to_binary.pdf
    • https://cdn.shopify.com/s/files/1/0433/9168/0673/files/solidworks_routing_parts.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e01.bin
ea98d7660c8f767ca56c8f9c5dec31d357a18ece4d2a767aedf8115d2c5a2790		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E01 6984 bytes
font_01_sfnt_off000075b5.bin
4b732a67a98c3d471403c3630627e40d673278d1312d8c5cedd02e9be79b4c90		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75B5 5000 bytes
font_02_sfnt_off000086a8.bin
c6a2211bd8dd077d4f43ae2ba9d623237c31a9adfd1624b4c4ca1fa50082ebf0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86A8 10380 bytes

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