Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d9d56933f30d374…

MALICIOUS

PDF

42.2 KB Created: 2020-08-22 07:42:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5839d866c3bc2eb6cb105e82e6affdb5 SHA-1: ea644b45f0588ecf24ca7a0a40cb1dee62b923d4 SHA-256: 8d9d56933f30d37427484f87684258506b14835b2831ed40c17930ae24ffe56c
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains URLs that are part of a link farm, with one specifically pointing to a malicious redirector. This suggests the primary goal is to redirect the user to a malicious site, likely for further exploitation or phishing. No scripts were extracted from this sample.

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=2004+yamaha+banshee+service+manual+pdf
    • http://wijukepiv.sliabhleagueboattrips.com/uploads/1/3/2/6/132695384/xudogumavibiv.pdf
    • http://files.herveybaywhalecity.com/uploads/1/3/1/4/131453402/1546521.pdf
    • http://masoniwuw.aatfchicagonorthernillinois.com/uploads/1/3/1/4/131409090/3165812.pdf
    • https://cdn.shopify.com/s/files/1/0438/2516/8544/files/15208320209.pdf
    • https://cdn.shopify.com/s/files/1/0433/8620/8406/files/present_and_past_tenses_exercises_with_key.pdf
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/62992313217.pdf
    • https://cdn.shopify.com/s/files/1/0431/9241/8468/files/lozopijoxigalu.pdf
    • https://cdn.shopify.com/s/files/1/0429/6133/8531/files/34093412890.pdf
    • https://cdn.shopify.com/s/files/1/0435/5181/7883/files/97173796266.pdf
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/1998_road_king.pdf
    • https://cdn.shopify.com/s/files/1/0432/0965/4432/files/supapaladezapirogebodo.pdf
    • https://cdn.shopify.com/s/files/1/0434/6445/8405/files/free_bylaws_template.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/buvemotorijanebotoxurabax.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_off0000594a.bin
ad10a96e3a1510c37b1a97fbc6add806976fd4f3f91a019fded1db6fa0e1d4f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x594A 5964 bytes
font_01_sfnt_off00006d69.bin
e03670948f0d1fb32735358b243ef3d22a8e294021e03a5e1aa6154c327d9ee0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D69 15184 bytes

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