Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de2f62fbcae3430…

MALICIOUS

PDF

45.5 KB Created: 2020-09-02 23:03:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49facf98658ee2d37577044e02319dd9 SHA-1: 9ae0c8badb698b8071bf12f51576bf3bf57e7588 SHA-256: 4de2f62fbcae343089df5c09ef73c9eeae399cf47b5c24f2e023a39942928960
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.me/wix?keyword=map+labeling+spanish+speaking+countries+answer+key', is designed to redirect users to malicious infrastructure. The PDF also exhibits characteristics of a link farm, with numerous embedded links to external PDFs, likely for SEO manipulation or to obscure the malicious destination. The overall pattern suggests a social engineering lure to drive traffic to a malicious site.

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.me/wix?keyword=map+labeling+spanish+speaking+countries+answer+key
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/povapegodelekorijadubum.pdf
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/zuvide.pdf
    • https://cdn.shopify.com/s/files/1/0437/4819/6503/files/rizedowolumejunid.pdf
    • https://cdn.shopify.com/s/files/1/0436/7102/7865/files/gastroenteritis_sintomas.pdf
    • https://cdn.shopify.com/s/files/1/0432/7302/7749/files/25323110792.pdf
    • https://static.usrfiles.com/ugd/e4a001_03afc03f70f94aa6bad39aa6749dcbf6.pdf
    • https://static.usrfiles.com/ugd/6da380_35a5b76af07f46eeaf648562ab7c62c4.pdf
    • https://static.usrfiles.com/ugd/e2f7e1_d3de559744f4443f8da4228fe67d6c0b.pdf
    • https://static.usrfiles.com/ugd/756799_cadbab6f335d4222b23137e7f1c90758.pdf
    • https://cdn.shopify.com/s/files/1/0431/7780/3925/files/stick_of_truth_fruit_bat.pdf
    • https://cdn.shopify.com/s/files/1/0450/9233/9877/files/kexinategukewidosizaneda.pdf
    • https://static.usrfiles.com/ugd/b7306e_c86a27746cb2446a8faa833ad2c0c25b.pdf
    • https://static.usrfiles.com/ugd/4c3d6a_d12ab11668b449bc91330f65ef33443b.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_off00005b40.bin
997345f153d859ec5fa5ce5fffef8d5dd4590383e34ffb833af095b32fed400d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B40 5600 bytes
font_01_sfnt_off00006e6f.bin
d6162bdb13b465e44a7391ca4c9b5ff68c986d07ae9cb7cdd3b3019d2e57b4f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E6F 10672 bytes
font_02_sfnt_off000092c3.bin
a4f616c8ed03231f927c8f6725ddfb6aed79ba1e9c0c9257d690ec40f184d4cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92C3 16388 bytes

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