Malicious PDF — malware analysis report

Static analysis result for SHA-256 b47d7c0b51f9fdd2…

MALICIOUS

PDF

56.8 KB Created: 2020-08-23 01:23:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fa700f631a03ea5b232963b73dbaefe SHA-1: 715e86f441f1b229217f40cef04609361d8c9f88 SHA-256: b47d7c0b51f9fdd2bfbe3a34ad69dc8551e40b480cf33bc60da32ee08f8bf7da
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to the presence of numerous external links, a technique often used for SEO poisoning or to redirect users to malicious sites. One of the extracted URLs, 'https://ttraff.cc/pify?keyword=gold+logo+reveal+after+effects+templates', is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains this same URL, reinforcing its malicious intent.

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.cc/pify?keyword=gold+logo+reveal+after+effects+templates
    • http://files.collegefactory.org/uploads/1/3/2/3/132302940/e9d33c089a7.pdf
    • http://files.annualreport-m2016.com/uploads/1/3/2/8/132814427/delopufekigo-rotivobo.pdf
    • http://mitas.thistraveldiary.com/uploads/1/3/0/8/130873995/8014979af134.pdf
    • https://cdn.shopify.com/s/files/1/0437/3322/1527/files/balance_sheet_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3866/files/anarchy_reigns_pc.pdf
    • https://cdn.shopify.com/s/files/1/0434/4135/6950/files/zawawodedagafusezo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4306/0901/files/ca_dmv_printout.pdf
    • https://cdn.shopify.com/s/files/1/0437/6661/2130/files/download_yasin_dan_tahlil_latin.pdf
    • https://cdn.shopify.com/s/files/1/0433/9302/4149/files/58408649126.pdf
    • https://cdn.shopify.com/s/files/1/0439/0515/5224/files/juniremibowakibuweniz.pdf
    • https://cdn.shopify.com/s/files/1/0460/7174/2628/files/dasaximuriv.pdf
    • https://cdn.shopify.com/s/files/1/0432/2846/3271/files/african_music_history.pdf
    • https://cdn.shopify.com/s/files/1/0431/1796/9570/files/cheerios_nutritional_information_australia.pdf
    • https://cdn.shopify.com/s/files/1/0431/4906/6397/files/osrs_red_chinchompa.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_off0000a05b.bin
f4da54de2d807d70404c2e070e281a2bd8bd959e83e987ce27fa6bfbbaeff279		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA05B 5564 bytes
font_01_sfnt_off0000b349.bin
027b90cc290bfeddb8a494f59584be2c0509c236bb2b6c1b82d34bf11331b66f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB349 10224 bytes

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