Malicious PDF — malware analysis report

Static analysis result for SHA-256 30086b488c72d5cf…

MALICIOUS

PDF

42.6 KB Created: 2020-08-18 19:01:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 68d48debd81014750656ad4ddcd56028 SHA-1: 6d02fbf07cb5d99454beca2c4c249fe43cd1bbab SHA-256: 30086b488c72d5cfe938cd091a437802eab7ebcc21d75ca8ec86bd181711d468
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link redirects to a known malicious domain (ttraff.cc). This indicates a likely attempt to lure users to malicious sites through a deceptive document. No scripts were extracted, and the document body is largely unreadable binary data, making specific intent beyond redirection difficult to ascertain.

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=fun+quiz+questions+and+answers+easy
    • http://files.getagripmarine.com/uploads/1/3/2/7/132740445/ritidax_sofisu_rinafotoxu.pdf
    • http://kikifaluk.campbellteenfamilytherapy.com/uploads/1/3/0/7/130776457/fulesofav_lezofeku_lowoturupa.pdf
    • http://bibilog.rocktherobot.net/uploads/1/3/1/8/131871825/ccf2537585557.pdf
    • http://files.theconfinedarts.org/uploads/1/3/1/3/131398498/55d822.pdf
    • https://cdn.shopify.com/s/files/1/0435/4283/9455/files/jowuw.pdf
    • https://cdn.shopify.com/s/files/1/0438/7618/8315/files/21290428543.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17418425376.pdf
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/55675114719.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/26913772624.pdf
    • https://cdn.shopify.com/s/files/1/0438/0459/0242/files/worksheets_to_help_improve_self_esteem.pdf
    • https://cdn.shopify.com/s/files/1/0437/8089/8973/files/92698592970.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/amu_admission_2019_class_11_form_date.pdf
    • https://cdn.shopify.com/s/files/1/0429/2100/1119/files/ririjudakukixab.pdf
    • https://cdn.shopify.com/s/files/1/0431/9703/8756/files/xozujiviv.pdf
    • https://cdn.shopify.com/s/files/1/0429/3342/0195/files/99131948910.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_off000068bb.bin
b41717b76754d7246e99d79f356bcc9f5b145e296cb0ed3350ed13c3439b7ed6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68BB 5112 bytes
font_01_sfnt_off00007a4d.bin
f611f5b5c427319c5c03df7b699cbfa9d0915e92e389233b57374b0a4f93173b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4D 10388 bytes

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