Malicious PDF — malware analysis report

Static analysis result for SHA-256 306e18e87c6e6c6f…

MALICIOUS

PDF

38.1 KB Created: 2020-08-19 19:54:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46a4be09345311cb7f8f6afa96029b15 SHA-1: b71bd2a8588ed0ad7e0fe26620fbd0a3803d075e SHA-256: 306e18e87c6e6c6fe7f59f81b8c98e83893b5b6efcac66d5206fa4cc3682bad1
128 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body includes a "download" call-to-action phrase and the malicious redirector URL. The primary malicious URL is https://ttraff.cc/pify?keyword=good+morning+photo+love+shayari, which is likely used to redirect the user to a further malicious destination.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=good+morning+photo+love+shayari
    • http://files.ssaaalbury.com.au/uploads/1/3/1/4/131437953/7450913.pdf
    • https://cdn.shopify.com/s/files/1/0430/3667/2162/files/23528598451.pdf
    • https://cdn.shopify.com/s/files/1/0431/7321/6411/files/loos_boiler_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/7792/7072/files/81592894410.pdf
    • https://cdn.shopify.com/s/files/1/0428/8492/3555/files/domejadokokenafovilafesov.pdf
    • https://cdn.shopify.com/s/files/1/0430/8634/8450/files/37315846093.pdf
    • https://cdn.shopify.com/s/files/1/0429/9931/6639/files/95624399593.pdf
    • https://cdn.shopify.com/s/files/1/0437/7791/7090/files/espresso_english_level_3.pdf
    • https://cdn.shopify.com/s/files/1/0432/0467/3699/files/55247651746.pdf
    • https://cdn.shopify.com/s/files/1/0438/0730/9984/files/sivawugijifoponorugi.pdf
    • https://cdn.shopify.com/s/files/1/0452/6528/9378/files/vagolume.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_off00004a87.bin
1416a7ad84f2d0979726156e44236963b8bd1210d85e465f9bac1e540fc5cb62		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A87 5352 bytes
font_01_sfnt_off00005c9e.bin
2b78d63145b306fda64ceac6d306035eece4b2e24ec7bd095d4a743687209a34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9E 9656 bytes
font_02_sfnt_off00007dba.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBA 4324 bytes

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