Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd96b0e463f66af3…

MALICIOUS

PDF

39.6 KB Created: 2020-08-21 04:44:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ebba6a4554f3e15c4e39b2efd2d089c SHA-1: 7d6bad66b327bc705ea157428d9e04a3978656b5 SHA-256: dd96b0e463f66af34d782b45c907cf8d2b897a52c7ddb5c6705f430ff183e6d9
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Edinburgh castle tour guide' and the malicious URL, suggesting a lure to trick users into visiting the redirector. The redirector likely serves as a gateway to further malicious content or exploits.

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=edinburgh+castle+tour+guide
    • http://files.slidelldentist.com/uploads/1/3/1/4/131437246/tifuguwi.pdf
    • http://zivok.thecanningtable.com/uploads/1/3/1/6/131606490/9739718.pdf
    • https://cdn.shopify.com/s/files/1/0429/0209/3987/files/lijubi.pdf
    • https://cdn.shopify.com/s/files/1/0437/5589/6990/files/free_card_games_online_no_required.pdf
    • https://cdn.shopify.com/s/files/1/0429/8499/7025/files/58822628909.pdf
    • https://cdn.shopify.com/s/files/1/0430/0043/0746/files/creative_thinking_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0448/0643/9078/files/33795272273.pdf
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/the_lion_in_your_living_room_imdb.pdf
    • https://cdn.shopify.com/s/files/1/0434/6845/6086/files/buddynice_redemial_mix.pdf
    • https://cdn.shopify.com/s/files/1/0434/6334/4280/files/rupedizivosi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5098/2805/files/asymptotic_notations_in_algorithms.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_off00005de1.bin
26d5ea8e8575dc895896cfb7d08185212ff16f491896f653e26cb52c3798a5bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE1 5296 bytes
font_01_sfnt_off00006fd3.bin
3a0a4a7a6175887ea77c28556f60b2d017614389529fbd79a2af330540035f1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD3 10032 bytes

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