Malicious PDF — malware analysis report

Static analysis result for SHA-256 1aa45bf0a030d94c…

MALICIOUS

PDF

36.7 KB Created: 2020-08-15 01:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fbc4f09a2ee1f8f7e4a47135aaaf0ea SHA-1: ee773dcde2262a94a5613da55bea62d102efddc8 SHA-256: 1aa45bf0a030d94c67e46618dec44bdc402e6b1a4606ad5471094a66c3ed6735
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=odometer+disclosure+form+texas'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains text related to 'Odometer disclosure form texas' and includes the malicious URL, suggesting a phishing or scam attempt.

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=odometer+disclosure+form+texas
    • http://files.capoeira-aca.com/uploads/1/3/1/0/131070733/fde93.pdf
    • http://files.finalflightministry.com/uploads/1/3/2/6/132682684/bfeaf3a63.pdf
    • http://files.wherepainfindshope.com/uploads/1/3/1/3/131397964/bc3a228045ce7.pdf
    • http://files.elizabethwoodrum.com/uploads/1/3/1/4/131453522/folobajosejurasasa.pdf
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/50276672137.pdf
    • https://cdn.shopify.com/s/files/1/0432/3033/1040/files/bolisaje.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/menopausia_y_riesgo_cardiovascular.pdf
    • https://cdn.shopify.com/s/files/1/0434/0203/5354/files/pisulemavu.pdf
    • https://cdn.shopify.com/s/files/1/0436/0637/6611/files/apiculture_syllabus.pdf
    • https://cdn.shopify.com/s/files/1/0430/0305/2191/files/agricultural_marketing_and_price_analysis_book.pdf
    • https://cdn.shopify.com/s/files/1/0437/6448/2202/files/80061862476.pdf
    • https://cdn.shopify.com/s/files/1/0428/9318/1081/files/jijexozunugedipewori.pdf
    • https://cdn.shopify.com/s/files/1/0432/4848/4507/files/99653284285.pdf
    • https://cdn.shopify.com/s/files/1/0432/4484/7266/files/11th_computer_science_book_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/7973/7237/files/kixabitabetubokujodoki.pdf
    • https://cdn.shopify.com/s/files/1/0430/7160/2855/files/the_economist_may_2020_download.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_off000051f2.bin
351422a0882c6cee30383d48404f5ca5738633a05f01445d4efdcddda9410559		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51F2 5260 bytes
font_01_sfnt_off000063c2.bin
41dfc27f491f8b06842a147e029595c2e7007adc0f7025a6210c798080ce22ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63C2 10100 bytes

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