Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4e23a2ea25f2a48…

MALICIOUS

PDF

56.4 KB Created: 2020-08-21 19:15:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7dc7afea34e56b3a9e76ecc730d778ba SHA-1: 5e84d783fa9c3f38100974f5c65156935e5c9d88 SHA-256: d4e23a2ea25f2a480922714cbeaf6d63551b18711c0a3ae51e5d74b9697cbdf4
120 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'dress shirt collar styles guide' which redirects to a malicious URL. This URL is part of a link farm containing numerous other PDF documents, suggesting a tactic to distribute or obscure malicious content. The primary malicious indicator is the redirector link to traff.ru, which is flagged as malicious.

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=dress+shirt+collar+styles+guide
    • http://files.knightwoodtuition.com/uploads/1/3/2/8/132815220/169597.pdf
    • http://bizefuze.motorcyclevagabondshow.com/uploads/1/3/2/8/132815787/pojunu.pdf
    • http://files.barclayconsulting.co.nz/uploads/1/3/1/6/131636792/vumejelegesuvog_puvepowiz_vivojo.pdf
    • http://files.crowenpress.com/uploads/1/3/2/7/132740362/wotigawuxifobaki.pdf
    • https://cdn.shopify.com/s/files/1/0439/1777/0920/files/kiran_publication_bank_po_math_books.pdf
    • https://cdn.shopify.com/s/files/1/0433/9744/7836/files/jozavevezijojunatipikoxok.pdf
    • https://cdn.shopify.com/s/files/1/0431/0695/9514/files/reset_css_file.pdf
    • https://cdn.shopify.com/s/files/1/0433/3305/8715/files/lapipobopenazagididaja.pdf
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/21384809733.pdf
    • https://cdn.shopify.com/s/files/1/0462/7949/1733/files/logo_game_quiz_answers_pack_3.pdf
    • https://cdn.shopify.com/s/files/1/0431/5712/7336/files/setesivukogi.pdf
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/kigenijivad.pdf
    • https://cdn.shopify.com/s/files/1/0437/4154/4599/files/54594046530.pdf
    • https://cdn.shopify.com/s/files/1/0428/6365/7119/files/bose_qc35_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/2857/6416/files/icse_maths_textbook_for_class_10.pdf
    • https://cdn.shopify.com/s/files/1/0434/5063/0296/files/20426454951.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_off00009dd3.bin
4a37b26ad0a0cdcb006b8d967ab1ac698824b742650f94dd464c0226500e5800		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DD3 5300 bytes
font_01_sfnt_off0000afd4.bin
7a30b0882e15e55d2cf03eaf74672208e72735b7eb70afbaf90f6bfc1f5eb99c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAFD4 10704 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.