Malicious PDF — malware analysis report

Static analysis result for SHA-256 e594e858dc9fe14e…

MALICIOUS

PDF

39.6 KB Created: 2020-08-31 22:04:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a188984def50d6b47beeba0056b1cf6 SHA-1: e59636108d09247396692f69447249a605d80fb4 SHA-256: e594e858dc9fe14e4d8d11c4620cd188a70381029a1c47d596026010b498a1d5
160 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure for 'Championship manager 2004 free', and the primary malicious URL is associated with this lure. The presence of a password archive lure heuristic suggests an attempt to bypass security controls by encrypting a payload.

Heuristics 4

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.com/pify?keyword=championship+manager+2004+free
    • https://static.usrfiles.com/ugd/55f640_40a6a624df734402ae5c16ed32c27d19.pdf
    • https://static.usrfiles.com/ugd/b972d5_974bfd700b8240fea7563c3f928b42db.pdf
    • https://static.usrfiles.com/ugd/8127dd_a7c9076d0fb7412295afa7b39a60bd39.pdf
    • https://static.usrfiles.com/ugd/5b604d_c7770e95e5614daca45c8e501070c070.pdf
    • https://static.usrfiles.com/ugd/b8c837_adbb3d1db2164523bd9a24be3bc4e5ce.pdf
    • https://cdn.shopify.com/s/files/1/0435/4650/9461/files/47347200619.pdf
    • https://cdn.shopify.com/s/files/1/0431/3923/5997/files/premier_league_fixtures_2020_19_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0452/3776/4256/files/esl_past_simple_regular_verbs_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0434/7622/2118/files/14459870191.pdf
    • https://cdn.shopify.com/s/files/1/0440/7332/0600/files/biblical_dream_dictionary.pdf
    • https://cdn.shopify.com/s/files/1/0432/6031/3763/files/how_to_draw_human_faces.pdf
    • https://cdn.shopify.com/s/files/1/0431/7426/4993/files/calistenia_rutinas.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/jexaxi.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_off00005c5c.bin
60e6ad13c143e607dfe51d95a7f22a4bd07cf9b2c846ae3f6beb9a54cce7830d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C5C 5552 bytes
font_01_sfnt_off00006f12.bin
3f6c05707c77fbf8538a94e2d60c2494b5e076a67659aecef253f5098f42ac1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F12 10120 bytes

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