Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc575119b58775dd…

MALICIOUS

PDF

34.1 KB Created: 2020-07-31 19:23:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc55afff9ac5284691fff87db3ef3ed2 SHA-1: 72e7dd283dd6d006d11df9abeaaa64cca3e9f5e9 SHA-256: cc575119b58775dd9829e3e15fb054c428aa92877f040a372be0871be6650680
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing a malicious redirector link and a large number of external links, indicating a link farm. The embedded URL 'https://ttraff.com/pify?keyword=pokemon+gif+sprites' is a strong indicator of malicious intent, likely leading to a phishing or malware distribution site. The document body, though heavily obfuscated, contains this URL and other PDF links, reinforcing the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=pokemon+gif+sprites
    • http://files.bitchinincdesigns.com/uploads/1/3/2/3/132302718/2a467872.pdf
    • http://files.funom.org/uploads/1/3/0/7/130776726/0de7215c405df3.pdf
    • http://files.realisticproductions.net/uploads/1/3/2/7/132740185/nolalemiko.pdf
    • https://cdn.shopify.com/s/files/1/0433/2814/3510/files/lumudimudigederarufemonad.pdf
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/sodeluzogupijiramavumakut.pdf
    • https://cdn.shopify.com/s/files/1/0432/5077/8269/files/95482326641.pdf
    • https://cdn.shopify.com/s/files/1/0431/8475/0747/files/tawujuteruvadibo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54313135065.pdf
    • https://cdn.shopify.com/s/files/1/0431/4441/3350/files/65613194700.pdf
    • https://cdn.shopify.com/s/files/1/0437/4301/9159/files/zevatatiwodevi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/47351008906.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78214852322.pdf
    • https://cdn.shopify.com/s/files/1/0434/4607/5542/files/jetora.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_off0000468b.bin
b137499bf49dfab21824536190cd66f5734f7358f76462f8bbe5abfcafdf1bad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x468B 5044 bytes
font_01_sfnt_off000057b5.bin
90f5e9858d06b09d4f672976384e385de09d7c5ec4223f0bca9996a68ac56d81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57B5 10848 bytes

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