Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf1075c09931002f…

MALICIOUS

PDF

55.8 KB Created: 2020-08-17 01:40:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e9c9835fb742d7826444d706ba28212 SHA-1: 41fdc5792beb78a18a57105cbcf0133905774812 SHA-256: cf1075c09931002fc59857850e1439bac0dc5d65452d449aed52ce504420859d
140 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a Frontier customer service contact for reporting an outage. This indicates a callback phishing or tech-support scam lure. The document also functions as a link farm, hosting numerous other PDFs on Shopify domains, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=frontier+customer+service+to+report+outage
    • http://files.michaelchekhovcanada.com/uploads/1/3/0/7/130739202/razixaxuve.pdf
    • http://xuduwug.thecastlespa.co.uk/uploads/1/3/1/4/131483281/tibaxirar.pdf
    • http://files.dlrapartments.com/uploads/1/3/1/4/131454012/e205b0f16477.pdf
    • http://files.ecoprowildlife.com/uploads/1/3/1/3/131384589/e5a1c733b21a.pdf
    • https://cdn.shopify.com/s/files/1/0431/6738/3713/files/autoconcepto_y_autoestima_en_adolescentes.pdf
    • https://cdn.shopify.com/s/files/1/0431/5525/9546/files/vonizerufaxukate.pdf
    • https://cdn.shopify.com/s/files/1/0447/9034/9975/files/vegafufigefizoleruzitu.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8811/files/waxapujepomovabot.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/26533822031.pdf
    • https://cdn.shopify.com/s/files/1/0430/6137/9221/files/energias_alternativas.pdf
    • https://cdn.shopify.com/s/files/1/0438/8706/7291/files/80867237224.pdf
    • https://cdn.shopify.com/s/files/1/0434/6917/6992/files/75166930538.pdf
    • https://cdn.shopify.com/s/files/1/0429/7962/3071/files/47505925305.pdf
    • https://cdn.shopify.com/s/files/1/0431/8376/7713/files/vikeleliwobedopibij.pdf
    • https://cdn.shopify.com/s/files/1/0434/2477/6354/files/capteur_inductif_et_capacitif.pdf
    • https://cdn.shopify.com/s/files/1/0434/7461/6472/files/mesotelioma_sarcomatoide.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065cf.bin
2ce86876f0290710f21e41e9b6dfbbc991748b732fc76d7d5033733c3adbdbdc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65CF 3292 bytes
font_01_sfnt_off00007196.bin
91efdbff0570b3b30e521d554ae72a4be6d6262ac57f46355eca6401faf38634		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7196 5236 bytes
font_02_sfnt_off00008353.bin
4411e880505d72b84a4081f49fcb9c7d7cdee2704a11d8c2a13f36e04c58cc63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8353 5324 bytes
font_03_sfnt_off000095d0.bin
d57d056d20c192265361b7021f6d34323cabefb2494cc2e410a98e7476a4a7bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95D0 10864 bytes
font_04_sfnt_off0000bb1e.bin
ff90d1e695b7fcaccdb30d0fb8a94c3875794d58890850d13b7a572baac42d72		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB1E 16288 bytes

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