Malicious PDF — malware analysis report

Static analysis result for SHA-256 db083bfcbefaf69f…

MALICIOUS

PDF

39.7 KB Created: 2020-08-19 23:13:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92e49926c701799d469273110a799d9b SHA-1: e0fe628b50b797003c1e7b8dcd27f3860206b34d SHA-256: db083bfcbefaf69f13fad5e474bb87cbb15f54c859e728b06646953860c3e741
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=my+boy+games+free++pokemon'. This URL is likely used to redirect users to a malicious site. The document body also contains this URL, suggesting it's presented to the user as a lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm strategy, likely for SEO poisoning or to obscure the final malicious destination.

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.ru/pify?keyword=my+boy+games+free++pokemon
    • http://files.hollandsportfishing.com/uploads/1/3/0/8/130874416/610406.pdf
    • https://cdn.shopify.com/s/files/1/0435/4595/2408/files/brand_guidelines_logo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1848/4888/files/88384609907.pdf
    • https://cdn.shopify.com/s/files/1/0434/0944/0935/files/biological_determinism_theory.pdf
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/36818967664.pdf
    • https://cdn.shopify.com/s/files/1/0437/8116/1121/files/solarwinds_dameware_remote_support_datasheet.pdf
    • https://cdn.shopify.com/s/files/1/0439/1727/9400/files/kingdom_hearts_wiki_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/8406/2626/files/cuento_de_axolotl.pdf
    • https://cdn.shopify.com/s/files/1/0434/7245/3797/files/xuditegavubojimudodamagu.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/xujojukumexuzug.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_off00005d7b.bin
0f99f6f26779571a47114273fe1007c1b1a62ab9b51688513fc265588502d77d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7B 5500 bytes
font_01_sfnt_off00007036.bin
6bb064d6031607f8d8f0a863d9c00fd22cb639628907e3602604ab569955a0cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7036 9984 bytes

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