Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0312c252d2a9ed4…

MALICIOUS

PDF

45.2 KB Created: 2020-08-23 03:06:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 479d58a88241526d3cc16c71a50bb934 SHA-1: 85127892781371d778eb3481b301566bb40db39e SHA-256: c0312c252d2a9ed45ff86c3d2699dd2d7a13f7cea2406955b005ffcb1c171732
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'summer athletics games free for pc', likely a lure. The primary attack pattern involves directing users to this malicious redirector, which likely serves as a gateway to further malicious content or exploits.

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=summer+athletics+games+free++for+pc
    • http://pijitepa.the8blockfitnessstudio.com/uploads/1/3/1/6/131637021/1196684.pdf
    • http://files.ancientcitycustoms.com/uploads/1/3/1/4/131438501/3369519.pdf
    • http://files.cahillshpall.com/uploads/1/3/0/9/130969330/gijajututugis_jumawufi_vavamuroro_pasuje.pdf
    • https://cdn.shopify.com/s/files/1/0437/6854/5441/files/phonetic_chart.pdf
    • https://cdn.shopify.com/s/files/1/0438/1887/7090/files/metexeladimagupesulude.pdf
    • https://cdn.shopify.com/s/files/1/0435/6797/2513/files/sezekamupabepogas.pdf
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/clinical_pharmacy_definition.pdf
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/dorumuviziwizugobe.pdf
    • https://cdn.shopify.com/s/files/1/0450/6910/7352/files/background_for_easyworship_2009.pdf
    • https://cdn.shopify.com/s/files/1/0465/2600/5406/files/41811511051.pdf
    • https://cdn.shopify.com/s/files/1/0431/0781/1495/files/afc_asian_cup.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_off0000635f.bin
4a5f4550028dedff91a05bd88380ff957c5a96d81a30b3ac176b9be3c76fc143		 pdf-font-stream PDF embedded font (sfnt) at offset 0x635F 5308 bytes
font_01_sfnt_off00007568.bin
ca30a227b661643461bb8b6f58ee1614d312ee77f1937e8bd49183e1de803d40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7568 10656 bytes
font_02_sfnt_off000099d8.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99D8 4324 bytes

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