Malicious PDF — malware analysis report

Static analysis result for SHA-256 9002acda43bb2b85…

MALICIOUS

PDF

44.4 KB Created: 2020-08-27 17:57:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 40579c1dbf9a34dad0d9c33e0f0a86a2 SHA-1: f9d33916b89ea83d8ec0405e25ea88a35b73f10c SHA-256: 9002acda43bb2b85b2eb5a367d8f4ffd9b92f2eb27560aed2bc1c6a93d3cf23d
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The document also contains a PDF link farm heuristic, indicating a large number of outbound links, many of which point to Shopify. The primary malicious IOC is the ttraff.cc redirector URL, which is likely used to funnel victims to further malicious content.

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.cc/pify?keyword=partes+internas+de+la+computadora+pa
    • http://files.ladlesofhope.org/uploads/1/3/0/9/130968921/d30f67d20.pdf
    • http://jisef.aleafigueroa.com/uploads/1/3/1/6/131606490/lanedideb-risejasujepamoz.pdf
    • http://files.bmwenthusiast.ca/uploads/1/3/0/7/130775998/6ef2b57688f80.pdf
    • https://cdn.shopify.com/s/files/1/0431/4267/6648/files/84066996456.pdf
    • https://cdn.shopify.com/s/files/1/0429/3384/6183/files/10248417225.pdf
    • https://cdn.shopify.com/s/files/1/0429/0219/2287/files/mufasugo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5340/7646/files/rurevusalosojitamimutal.pdf
    • https://cdn.shopify.com/s/files/1/0435/9494/0575/files/kabootar_photo_hd.pdf
    • https://cdn.shopify.com/s/files/1/0428/8000/8355/files/93894961399.pdf
    • https://cdn.shopify.com/s/files/1/0435/3739/9957/files/canada_immigration_form.pdf
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/52656175416.pdf
    • https://cdn.shopify.com/s/files/1/0431/0152/0023/files/85911300948.pdf
    • https://cdn.shopify.com/s/files/1/0439/7596/6878/files/52200564085.pdf
    • https://cdn.shopify.com/s/files/1/0433/9059/9319/files/vixolalowi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9866/9220/files/74264811290.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_off00006d49.bin
e8ea39fdde9dd9453e479cac1d661e94484e38133adeb266eb6129fd17278ab2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D49 5220 bytes
font_01_sfnt_off00007eea.bin
b02e1056637845008d6c60c47e86cb63458f9fe0778a3adca4b5496d72f6beec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EEA 11056 bytes

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