Malicious PDF — malware analysis report

Static analysis result for SHA-256 c49bf896ed7a4b57…

MALICIOUS

PDF

185.9 KB Created: 2020-09-09 08:57:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a08958dc49288313f32bea88e2e361f4 SHA-1: b32f66984a973e72e4c71934f7c0a4ccf19b6ae5 SHA-256: c49bf896ed7a4b572bb4d549377f4b5f62874e06d29391a1e94a1d93ecb14145
90 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains a link to a known malicious redirector. The embedded URL, 'https://ttraff.link/pify?keyword=diversity+of+cell+size+and+shape+pdf', is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, but the presence of the malicious link strongly suggests a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 2

  • 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.
  • 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.link/pify?keyword=diversity+of+cell+size+and+shape+pdf
    • https://cdn.shopify.com/s/files/1/0434/5197/3799/files/pokup.pdf
    • https://cdn.shopify.com/s/files/1/0429/7038/2485/files/joguxunonamezoxafetovox.pdf
    • https://cdn.shopify.com/s/files/1/0431/3651/6250/files/fuvujalodure.pdf
    • https://static.usrfiles.com/ugd/9ec29b_68dbe02ff28a45eb962ce537e8258ba1.pdf
    • https://static.usrfiles.com/ugd/7f16bd_42ee511a68bb40128710f04807938962.pdf
    • https://static.usrfiles.com/ugd/694d5d_80e8d8edc86f4773bcb26105fd6f8375.pdf
    • https://cdn.shopify.com/s/files/1/0433/5956/8027/files/cariniana_estrellensis.pdf
    • https://cdn.shopify.com/s/files/1/0431/6332/0471/files/64970126164.pdf
    • https://static.usrfiles.com/ugd/824332_ce3f47c926a84a14889dff053aac354e.pdf
    • https://static.usrfiles.com/ugd/13ae68_e16fa49d8b3040f9ac40a2a14079f18c.pdf
    • https://static.usrfiles.com/ugd/9cc572_3ca3815b496d4d87857d3a7ff16e1a4b.pdf
    • https://static.usrfiles.com/ugd/2b98a3_d7980957ce75406dbfd6e97bde6e9e99.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_off0002a2c2.bin
f07588aeedb481f1f4f437baf96f07555668b1c4498f54dcabe91b0a221361e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A2C2 5456 bytes
font_01_sfnt_off0002b56c.bin
2ba71aca4fc2a966ab39e6a82fb819975647c2632457d87094acc6e27e2fbeac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B56C 10616 bytes

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