Malicious PDF — malware analysis report

Static analysis result for SHA-256 d114e50178bc5d50…

MALICIOUS

PDF

61.7 KB Created: 2020-08-25 19:31:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fd6f229c90fdd3a5335a427cac071ad SHA-1: deb62f36285922eecd1eea7de93645aac2f2d615 SHA-256: d114e50178bc5d50cb6e07a6d4fd39be8ed5b4be9fe189503f8d1532c5a19319
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 a large number of external links, a technique often used to distribute malware or conduct phishing attacks. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=latin+rhythms+pdf', is flagged as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL and other links pointing to external resources, reinforcing the attack pattern.

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=latin+rhythms+pdf
    • http://gajuwab.elukproductions.com/uploads/1/3/2/8/132814930/5113298.pdf
    • https://cdn.shopify.com/s/files/1/0434/6596/5718/files/trucking_business_plan_in_south_africa.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8184/files/sharepoint_2013_discussion_board_unanswered_questions.pdf
    • https://cdn.shopify.com/s/files/1/0432/5212/1762/files/newry_reporter_gallery.pdf
    • https://cdn.shopify.com/s/files/1/0434/7658/2560/files/m_g_alpha_opportunities_fund_factsheet.pdf
    • https://cdn.shopify.com/s/files/1/0438/9987/9576/files/date_format_english_monday.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/magobusiriwolozun.pdf
    • https://cdn.shopify.com/s/files/1/0429/5357/2515/files/28047495939.pdf
    • https://cdn.shopify.com/s/files/1/0429/0838/5439/files/jukopalimiwugetetonawap.pdf
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/free_converter_to_word_document_to_edit_it.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_off0000a3db.bin
ed476659918b395b52c4cf49525d7ad1999ee54324b6e974e8a0dd48b485675a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3DB 4852 bytes
font_01_sfnt_off0000b420.bin
0a4a517877def9fc17adf927e2ade3f2d2dce17de257f93465227dcb6b2ebfba		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB420 11800 bytes
font_02_sfnt_off0000dabf.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDABF 4324 bytes

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