Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8dabc8f453737d0…

MALICIOUS

PDF

39.8 KB Created: 2020-08-28 09:19:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 429ade1cde311d727f8dfc8518a41f17 SHA-1: 11a1dff2b27361dd7d4a6730dbe4d8f6c519e12c SHA-256: f8dabc8f453737d02101177c4fecb43a9d77714939c0bc3c47448ba936104e3b
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body disguised as a movie title. This link leads to the ttraff.ru domain, indicating a likely phishing or malware distribution attempt. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO abuse tactic to obscure the malicious redirector.

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=nikka+zaildar+2+full+movie
    • http://files.thucsnet.org/uploads/1/3/1/4/131407708/zukidokijukebijoz.pdf
    • http://files.stgabrielschool.org/uploads/1/3/2/6/132681030/3503021.pdf
    • http://nuzodape.jjohnsonartist.com/uploads/1/3/1/6/131606295/cd7dd.pdf
    • https://cdn.shopify.com/s/files/1/0428/2862/8124/files/system_of_inequalities_word_problems_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/9482/7418/files/13284478072.pdf
    • https://cdn.shopify.com/s/files/1/0431/3474/6790/files/23687476632.pdf
    • https://cdn.shopify.com/s/files/1/0427/9199/3500/files/xabagedekurukuneduvesuluk.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sakemiribukewud.pdf
    • https://cdn.shopify.com/s/files/1/0431/0863/0681/files/vixajeborufetam.pdf
    • https://cdn.shopify.com/s/files/1/0463/4542/0957/files/rustic_wedding_reception_invitation_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/3668/0102/files/vanilla_wow_joanas_horde_leveling_guide.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_off000048e0.bin
e2910dc88906b431f05a09d17e61597aaa42df26753766e25844b0f79315d923		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48E0 5152 bytes
font_01_sfnt_off00005a5f.bin
02b3bfebcf54da4bf87df9ba4dcbeac373b594fcf811dbe3b7d803dc251404be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A5F 10128 bytes
font_02_sfnt_off00007d57.bin
c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D57 16164 bytes

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