Malicious PDF — malware analysis report

Static analysis result for SHA-256 95ac59dcbcb5f8eb…

MALICIOUS

PDF

46.0 KB Created: 2020-08-23 17:29:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6a1a79430d7fd0b44e62361ad74b806 SHA-1: 6520433cf2725078ba5a3202f9d25c30cad05092 SHA-256: 95ac59dcbcb5f8eb1718c681eba0785b73a333e627e6781a58c296030737425b
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.com/pify?keyword=squarespace+design+templates', suggests a potential redirection to malicious content or a phishing attempt. The presence of numerous Shopify links, while some are benign, contributes to the overall link farm characteristic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=squarespace+design+templates
    • http://gabeki.highlandmusicboosters.com/uploads/1/3/1/4/131406950/vupuxolukonal_gokijigupew.pdf
    • http://doxidepeg.stjoachimlockeford.com/uploads/1/3/1/1/131164250/wakutu.pdf
    • http://files.premieredanceco.com/uploads/1/3/2/3/132303410/tizojigaxojakof.pdf
    • http://files.advance-scientific.net/uploads/1/3/1/4/131483097/nevonuxuf_susajelasaw_magarigusalaveg_pidazi.pdf
    • https://cdn.shopify.com/s/files/1/0437/3174/6967/files/einstein_bagels_menu_prices.pdf
    • https://cdn.shopify.com/s/files/1/0434/7995/7669/files/zozenile.pdf
    • https://cdn.shopify.com/s/files/1/0432/7027/5237/files/71254016607.pdf
    • https://cdn.shopify.com/s/files/1/0430/5181/0969/files/pathology_neoplasia_question_bank.pdf
    • https://cdn.shopify.com/s/files/1/0432/1814/1341/files/donkey_kong_smash_ultimate_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/eight_characteristics_of_research.pdf
    • https://cdn.shopify.com/s/files/1/0437/5805/9674/files/how_to_speak_fluent_english_in_30_days.pdf
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/betazok.pdf
    • https://cdn.shopify.com/s/files/1/0450/9289/6920/files/rezigufefow.pdf
    • https://cdn.shopify.com/s/files/1/0430/3051/1779/files/bujuzekexivasotijijuru.pdf
    • https://cdn.shopify.com/s/files/1/0436/8020/2905/files/272494848.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_off000075be.bin
68518befedb7c65dad150d3f12e2191f96c0e0f5a7a8792bd8795e05cd03c211		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75BE 5624 bytes
font_01_sfnt_off000088ba.bin
d73849edae4c26f7bcd2383f3c04e651daad8964d9dec1c635290665ffb4523e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88BA 10080 bytes

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