Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8c684581aed53db…

MALICIOUS

PDF

52.1 KB Created: 2020-08-21 03:06:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ad8379b29bfe9843ef7a810080bc45c SHA-1: d0ab730f9a12a73f702c73392cca2235a555a5c7 SHA-256: c8c684581aed53dbd7c3961a377836ceb7207eb753f80fc9d612c6467760f77e
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, including one identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to sheet music. The primary malicious link, https://ttraff.com/pify?keyword=the+greatest+show+sheet+music+piano+pdf, is designed to redirect users to potentially harmful content.

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.com/pify?keyword=the+greatest+show+sheet+music+piano+pdf
    • http://files.snarkypaws.com/uploads/1/3/0/7/130739348/0e45dc05eb01bb.pdf
    • http://sirisojux.madisoncountycc.com/uploads/1/3/1/4/131437792/notowa.pdf
    • http://files.edithshope.org/uploads/1/3/1/4/131437563/7668209.pdf
    • http://napavobu.linemarking.ie/uploads/1/3/1/0/131070611/senukuwoj_motokozun.pdf
    • https://cdn.shopify.com/s/files/1/0433/9934/8389/files/24133747944.pdf
    • https://cdn.shopify.com/s/files/1/0432/6827/6384/files/muxorabuzafafubo.pdf
    • https://cdn.shopify.com/s/files/1/0464/9022/2744/files/41996798836.pdf
    • https://cdn.shopify.com/s/files/1/0438/1956/5216/files/classic_human_anatomy_valerie_winslow.pdf
    • https://cdn.shopify.com/s/files/1/0428/7610/8956/files/20105839098.pdf
    • https://cdn.shopify.com/s/files/1/0462/0058/6398/files/letter_template_for_proof_of_residency.pdf
    • https://cdn.shopify.com/s/files/1/0429/1064/6435/files/56606689453.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bec.bin
a2082afe4385e8940da17dc8662450e2298ad976a44dd9273c04d82c95a8beb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEC 5460 bytes
font_01_sfnt_off00007e6b.bin
83430b919ae84227d16f168263223d38bfea4cfddc1f93c0477561a5631a8b4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E6B 9912 bytes
font_02_sfnt_off0000a08f.bin
84650fe671c70ac66f3af0994468c9b9feb42d01905b0f030d5781e095ef8e52		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA08F 16100 bytes
font_03_sfnt_off0000b55e.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB55E 4324 bytes

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