Malicious PDF — malware analysis report

Static analysis result for SHA-256 c674929c4b122c63…

MALICIOUS

PDF

60.8 KB Created: 2020-08-30 19:10:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cbe1bbd05921e775c56bdf7eff2d0f8 SHA-1: b4806648d62f811a7b66a7736cccebd68afd9fa0 SHA-256: c674929c4b122c63b996b470ad50c36c250a983c29b51e0cee08f7dfc9f71b81
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is disguised as a product listing for a 'Dayton manual ratchet puller 4z312'. This heuristic, combined with the presence of a large number of external PDF links, suggests a phishing or malware distribution attempt. The document body, though heavily obfuscated, also contains the malicious URL, reinforcing the attack pattern. 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/wix?keyword=dayton+manual+ratchet+puller+4z312
    • https://static.usrfiles.com/ugd/1d64af_73c82640d9c247aaaa2474be89681a0e.pdf
    • https://static.usrfiles.com/ugd/a76634_c44b092c049a4e19a932a72b30cb311d.pdf
    • https://static.usrfiles.com/ugd/9219f8_3b463407ee3048f08b33160924183ccc.pdf
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/31167939970.pdf
    • https://cdn.shopify.com/s/files/1/0438/2441/4882/files/zemalimujimafa.pdf
    • https://cdn.shopify.com/s/files/1/0428/4170/2567/files/buxubekamivi.pdf
    • https://cdn.shopify.com/s/files/1/0446/6409/4873/files/lafomedapixep.pdf
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/vorezigapuniwusogobivirav.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/72477551761.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_off0000a15e.bin
68e4a159ba76a3129e69058039db38a8c008b850a71fffef7f7ba96e9f1b6601		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA15E 5580 bytes
font_01_sfnt_off0000b449.bin
f53f16c1d7f7f291a6686a685addad42835370e618d40898df5d901811153f0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB449 16148 bytes

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