Malicious PDF — malware analysis report

Static analysis result for SHA-256 f83e671b9c5c895f…

MALICIOUS

PDF

45.0 KB Created: 2020-08-15 01:06:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d1ea3acf877e293dfa6051a245ac8c0 SHA-1: deca7ffc5eed428b1d4feb895e09c1f82964357d SHA-256: f83e671b9c5c895f73da3240a1c4a75ce380b5082085fdc5de36fa9a3f8f0005
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which are part of a link farm strategy. One of the embedded URLs, 'https://ttraff.ru/pify?keyword=aatish+movie+whatsapp+status', is identified as a known malicious redirector. This suggests the document is designed to lure users to malicious sites, likely for phishing or malware distribution, by leveraging SEO techniques to appear legitimate.

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=aatish+movie+whatsapp+status
    • http://wulajaxon.mox-vr.com/uploads/1/3/0/8/130814328/modidovilomewaxuwe.pdf
    • http://files.conflictfluent.com/uploads/1/3/1/4/131407406/4241434.pdf
    • http://files.flatspokecycles.com/uploads/1/3/0/7/130775180/susuvoterixenanewi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1167/8114/files/79484432415.pdf
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/91852116268.pdf
    • https://cdn.shopify.com/s/files/1/0431/5499/7402/files/sevupufemapos.pdf
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/danakejekadabanetokafip.pdf
    • https://cdn.shopify.com/s/files/1/0428/8082/7558/files/10415100143.pdf
    • https://cdn.shopify.com/s/files/1/0435/3631/8616/files/news_report_template_google_docs.pdf
    • https://cdn.shopify.com/s/files/1/0433/2938/8699/files/cambridge_igcse_first_language_english_coursebook_fourth_edition_answers.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_off0000746b.bin
7d8c4f1d5d8bc476c3134816dd0db5473e99cbea119a4e949e1ef502ace7aaf5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x746B 5072 bytes
font_01_sfnt_off000085a2.bin
d6c82cc5d9fc5be1a8f22d1a3ae2e3fc834d96a9d05df982d7a660021e007639		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85A2 9920 bytes

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