Malicious PDF — malware analysis report

Static analysis result for SHA-256 2866e171a48b5d3d…

MALICIOUS

PDF

61.5 KB Created: 2020-08-27 15:52:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5322d3f8ad8b063f8953fc5f66ba24ae SHA-1: 398693842802c91703965deae2faaa1a5531ec99 SHA-256: 2866e171a48b5d3d9c6dc6dc073bb81a6c104841c141f5396df50cd865730012
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text referencing 'Lego indiana jones 2' and the malicious URL, suggesting a lure. Another critical heuristic indicates a PDF link farm, with multiple links hosted on 'cdn.shopify.com', though most appear benign. The primary malicious IOC is the ttraff.com 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.com/pify?keyword=lego+indiana+jones+2%253A+the+adventure+continues
    • http://files.crossroads-assembly.org/uploads/1/3/0/7/130739535/236560.pdf
    • http://files.soulsistersphotography.com/uploads/1/3/0/8/130873893/275679.pdf
    • http://nokilo.betinamarcolin.com/uploads/1/3/0/8/130814124/faxolekani-joxomoziba-xakudukiwe.pdf
    • https://cdn.shopify.com/s/files/1/0445/3875/7284/files/ejercicios_de_adjetivos_en_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0433/8447/1719/files/metallic_madness_bad_future.pdf
    • https://cdn.shopify.com/s/files/1/0461/0457/6164/files/fizijatebovofuvosolol.pdf
    • https://cdn.shopify.com/s/files/1/0438/5033/4368/files/64170980212.pdf
    • https://cdn.shopify.com/s/files/1/0429/5249/1159/files/wiragedufevelubulit.pdf
    • https://cdn.shopify.com/s/files/1/0432/8269/4312/files/37004066465.pdf
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/aqua_timez_alones.pdf
    • https://cdn.shopify.com/s/files/1/0433/5163/8175/files/89549202445.pdf
    • https://cdn.shopify.com/s/files/1/0434/8136/6693/files/jeroginupetadufok.pdf
    • https://cdn.shopify.com/s/files/1/0434/3054/3512/files/excel_count_words_in_sheet.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_off0000b35f.bin
892b82d49a6a49cba7fefc726f895175ba5451f383e63c05eb14e7fb5d01cee5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB35F 5428 bytes
font_01_sfnt_off0000c5e6.bin
468b62e1b660e082cf1e687938200c66c434bfe62deb9addb8bc66e6ba4c4485		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E6 10208 bytes

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