Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3e83341d0fc8bd2…

MALICIOUS

PDF

42.3 KB Created: 2020-08-29 05:52:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a2c4991103d48eefc623d3c9d9d2fba SHA-1: e4a7acd9a0ce8d7e472c3f878d496ed7e1f1d114 SHA-256: f3e83341d0fc8bd2c8e3ecd7351b96a8b5e410310d5ee41c9479246a3e1e1cef
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, pointing to 'https://ttraff.cc/wix?keyword=poet+anderson+of+nightmares'. Additionally, another critical heuristic indicates a PDF link farm, with numerous external PDF links, many hosted on 'static.usrfiles.com'. The document body also contains the malicious URL and several benign-looking PDF links, suggesting a lure to click on the malicious redirector. No scripts were extracted from this sample.

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/wix?keyword=poet+anderson+of+nightmares
    • https://static.usrfiles.com/ugd/b8c837_eb6fca7f18444a6a859001c0166b6698.pdf
    • https://static.usrfiles.com/ugd/b8c837_28ec0c09d5c44f5c84b1abdc992a1570.pdf
    • https://static.usrfiles.com/ugd/b8c837_57ce9fba7b8f487da62bb35dc16ce0a2.pdf
    • https://static.usrfiles.com/ugd/b8c837_a280cedc3c0c4f8897d8e171bd0774a9.pdf
    • https://static.usrfiles.com/ugd/b8c837_3f4d830924034c5fad9ac85c04af8a0b.pdf
    • https://static.usrfiles.com/ugd/b8c837_b320d072e39d4329a6c1eada0ae3a01d.pdf
    • https://static.usrfiles.com/ugd/b8c837_829f7b9798814d05864e0e00e9609c13.pdf
    • https://static.usrfiles.com/ugd/b8c837_79b523d3f74c4463bcc5daad97c58527.pdf
    • https://cdn.shopify.com/s/files/1/0449/8069/9295/files/gym_workout_plan_for_weight_loss_for_mens.pdf
    • https://cdn.shopify.com/s/files/1/0433/4492/0726/files/regoropuzikanisoxujaji.pdf
    • https://cdn.shopify.com/s/files/1/0429/9993/9235/files/advanced_badminton_techniques_book.pdf
    • https://static.usrfiles.com/ugd/b8c837_6fde20de732f4948909f569345c69715.pdf
    • https://static.usrfiles.com/ugd/b8c837_705e2a173ea04ec4a9abee93b8aa70f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_1455d9b0fea344d49ed7ad619d0056bd.pdf
    • https://static.usrfiles.com/ugd/b8c837_9103ccc0c81647c68040e4b2ae5c9f27.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_off0000680c.bin
c703318e8967a68fcb8000d4be62096aa4972c4bc8ea166b387b7f95286aa88f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x680C 5292 bytes
font_01_sfnt_off000079d8.bin
40fd9b604a33f3621a921a32eb5f4de142963c342eeb0e52dc4823244be4323e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79D8 10224 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.