Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fa260104833abab…

MALICIOUS

PDF

40.6 KB Created: 2020-08-28 02:11:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91e1d7f97eb7138b9f5b6af14bb10d16 SHA-1: fc8fefea75d4b7c36eb42c75fb085e0fed18faad SHA-256: 3fa260104833abab22510beefc4cbbf4ffb4c72380e9b39270a8437f43c5aa85
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Asterix et obelix streaming' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm heuristic further supports the malicious intent of redirecting users.

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=asterix+et+obelix+le+domaine+des+dieux+streaming
    • http://files.brandtmarineinc.com/uploads/1/3/0/7/130776607/dobori_wetarokurak_mikotefadavobuj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rewosegukedisupagur.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bijalikupuxamimidesedol.pdf
    • https://cdn.shopify.com/s/files/1/0437/2883/0632/files/54275028048.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/bemadebun.pdf
    • https://cdn.shopify.com/s/files/1/0434/0708/1630/files/69736548217.pdf
    • https://cdn.shopify.com/s/files/1/0438/0635/9714/files/speed_and_agility_training_program.pdf
    • https://cdn.shopify.com/s/files/1/0427/5427/7532/files/belevaxedifijasiren.pdf
    • https://cdn.shopify.com/s/files/1/0434/4964/7270/files/joomla_3_default_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/3046/3135/files/napididiramunutakelanaz.pdf
    • https://cdn.shopify.com/s/files/1/0452/0670/0183/files/alter_ego_a2_hachette.pdf
    • https://cdn.shopify.com/s/files/1/0433/5671/7224/files/88736578957.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_off00005a81.bin
72744a796de52aa071d8dea15e7249c32b0a33079ba561da0187fe102a3889ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A81 5340 bytes
font_01_sfnt_off00006c90.bin
32425e74269d4de17d411c747d54d7e87c1a6027618cae25b7fab337c860a1e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C90 12200 bytes

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