Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6ce3a8f5210c349…

MALICIOUS

PDF

53.0 KB Created: 2020-09-01 03:19:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f39ecf7f77777797fd920c7d159088c SHA-1: 6c73929d5ab4466f0eb975c5b3fd6c3f2cf399fa SHA-256: c6ce3a8f5210c349d175f04a4140364c80c46766c7d9c6d1913d72da2d20774d
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'utorrent movies search engine' and the malicious URL, suggesting a lure to download pirated content. The PDF_SEO_LINK_FARM heuristic indicates the PDF is part of a larger link farm, likely for SEO manipulation or distributing malicious links.

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/pify?keyword=utorrent++movies+search+engine
    • https://static.usrfiles.com/ugd/8127dd_4d43d4f7bc8c4c44abbf6e6015cfeb48.pdf
    • https://static.usrfiles.com/ugd/b8c837_81e8c549e290426da2139fed73d8dbea.pdf
    • https://static.usrfiles.com/ugd/0511f5_aa6d1d0ce06544f1b784a53630a679cc.pdf
    • https://static.usrfiles.com/ugd/f7fbc8_38da1a5b88fd4802add6468fbdf314fd.pdf
    • https://static.usrfiles.com/ugd/efb3f0_eb9ac65987574e9298d0edd1ed9fa9f5.pdf
    • https://static.usrfiles.com/ugd/9d66c7_6fa9119d9790422898130cefa6d5766b.pdf
    • https://cdn.shopify.com/s/files/1/0433/3810/4985/files/objectives_of_arusha_declaration.pdf
    • https://cdn.shopify.com/s/files/1/0436/2177/7570/files/tenses_table_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0436/4192/9886/files/sansa_fuze_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96626323422.pdf
    • https://cdn.shopify.com/s/files/1/0428/0621/4819/files/rizuwifeputagavigiwamameg.pdf
    • https://cdn.shopify.com/s/files/1/0431/0512/4503/files/dejokakezusefasoxerarofi.pdf
    • https://cdn.shopify.com/s/files/1/0430/2887/3367/files/android_gba_emulator.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2823/files/disefuxew.pdf
    • https://cdn.shopify.com/s/files/1/0429/8031/1203/files/princeton_review_calculus_bc.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_off00008554.bin
326d3607c6eb74bf06a5ac4e9193928cae09e46971ac09e09f50134063dfbd86
pdf-font-stream PDF embedded font (sfnt) at offset 0x8554 5232 bytes
font_01_sfnt_off000096f7.bin
9f0105478a3d777bbabfd49c87b13a38b3c26a31cb21434d6fab9773f69e3d64
pdf-font-stream PDF embedded font (sfnt) at offset 0x96F7 3076 bytes
font_02_sfnt_off0000a39c.bin
71ba003d216b2e3110fee1b7ca12310c7f47dc964619f67dd39dfbcc9e82dde7
pdf-font-stream PDF embedded font (sfnt) at offset 0xA39C 10340 bytes