Malicious PDF — malware analysis report

Static analysis result for SHA-256 489c7a506f2b44bf…

MALICIOUS

PDF

50.9 KB Created: 2020-08-29 16:56:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f8bd2ed7ff4cb328df93979ece5f7e0 SHA-1: 0fab68cdbef3f604b11fb537614e911f4350363b SHA-256: 489c7a506f2b44bfbdcc28c2b5f43941b67805c3bd8ec557f1350589499b9bbd
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 link farm. One of these links, https://ttraff.ru/wix?keyword=el+laberinto+de+los+espiritus+google+drive, is flagged as a malicious redirector. The presence of a link farm and a malicious redirector strongly suggests an attempt to lure users to malicious websites, likely for phishing or malware delivery.

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.ru/wix?keyword=el+laberinto+de+los+espiritus+google+drive
    • https://static.usrfiles.com/ugd/5de1df_8121fda7512d45faadad5262ceb6df17.pdf
    • https://static.usrfiles.com/ugd/2f3ac6_2dffbb4d52ef4a41b08e6bd5c36579c7.pdf
    • https://static.usrfiles.com/ugd/b8c837_a55c3657c1c346ceb08a8fe36e0100b7.pdf
    • https://static.usrfiles.com/ugd/b8c837_1cd81dc27d2d4ab3a7601226f188ad43.pdf
    • https://cdn.shopify.com/s/files/1/0448/1577/7954/files/a_level_physics_mcqs.pdf
    • https://cdn.shopify.com/s/files/1/0459/2635/0999/files/pizonudixe.pdf
    • https://cdn.shopify.com/s/files/1/0428/4032/6300/files/nutritional_information_raw_carrots.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8178/files/67357305174.pdf
    • https://cdn.shopify.com/s/files/1/0431/6381/1997/files/xuxokegokumuwon.pdf
    • https://cdn.shopify.com/s/files/1/0430/8893/7120/files/80627094420.pdf
    • https://cdn.shopify.com/s/files/1/0440/0329/5382/files/86099560480.pdf
    • https://static.usrfiles.com/ugd/b8c837_874d9c6da6c144c6b21e727e9e793d03.pdf
    • https://static.usrfiles.com/ugd/b8c837_6a732257756748bb83d6effb9cc50883.pdf
    • https://static.usrfiles.com/ugd/b8c837_3716386159e84bb3a521068b19b856cb.pdf
    • https://static.usrfiles.com/ugd/b8c837_b541c3dd58224a26a8f053fce03d572c.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b63.bin
7aea7e5ce819ceeeb1d92a0512e061aa6702970d0aa757511c6c0a1c73cec2e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B63 5284 bytes
font_01_sfnt_off00007d6b.bin
3135188bef0906d36cdc71396d2b635eb13fbdd4bc8f8e88f60ba09f84fc9c6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D6B 10772 bytes
font_02_sfnt_off0000a0b6.bin
3367e9f644c403229dc6698d86871a5d7caa2b2be4d1ed2a835af23aebefe9b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA0B6 17956 bytes

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