Malicious PDF — malware analysis report

Static analysis result for SHA-256 82d648930a242bf1…

MALICIOUS

PDF

53.0 KB Created: 2020-08-22 10:43:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feef5a749399695cb25d8530b1f443f2 SHA-1: f01926dcdc3664bed4dadd8c6509d23f4f93ebb3 SHA-256: 82d648930a242bf1d763097864dfbc78b34c96f297b18f232457e934245fa9db
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One critical heuristic firing indicates a link to a known malicious redirector, https://ttraff.cc/pify?keyword=harvest+moon+a+wonderful+life+character+guide, which likely serves as a lure or initial stage for malicious activity. The majority of other links point to benign PDFs hosted on Shopify, suggesting a tactic to inflate search engine rankings or distribute content through a seemingly legitimate platform.

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=harvest+moon+a+wonderful+life+character+guide
    • http://lizum.europahistoriarum.org/uploads/1/3/0/8/130814328/puwesujot-zijonufisenajax-resiziwi.pdf
    • http://files.fiberenvy.net/uploads/1/3/0/7/130740184/99e487a2d.pdf
    • https://cdn.shopify.com/s/files/1/0428/5415/4406/files/31282237787.pdf
    • https://cdn.shopify.com/s/files/1/0429/6815/4278/files/75643867219.pdf
    • https://cdn.shopify.com/s/files/1/0440/1712/3478/files/opposed_piston_engine.pdf
    • https://cdn.shopify.com/s/files/1/0430/7976/2073/files/linkedin_share_url.pdf
    • https://cdn.shopify.com/s/files/1/0429/3538/6265/files/definition_of_instructional_leadership.pdf
    • https://cdn.shopify.com/s/files/1/0429/5933/9674/files/98264728447.pdf
    • https://cdn.shopify.com/s/files/1/0434/7363/3432/files/tatidoro.pdf
    • https://cdn.shopify.com/s/files/1/0438/3680/1181/files/35996883110.pdf
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/roxepawovuwewat.pdf
    • https://cdn.shopify.com/s/files/1/0438/4836/8288/files/90328988726.pdf
    • https://cdn.shopify.com/s/files/1/0434/9054/1733/files/34097686307.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_off00008610.bin
896929a637978717fb81e018da60955b54a4bb2c9ad130b194785cf209e46736		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8610 5548 bytes
font_01_sfnt_off000098d1.bin
1609c0e9da7e3b4b8c6fd0f38b540a60a2e8231326118de5f547be1140ec87b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98D1 14880 bytes

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