Malicious PDF — malware analysis report

Static analysis result for SHA-256 45300e76c50ea435…

MALICIOUS

PDF

38.8 KB Created: 2020-07-08 12:13:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83ac80dee95085ec6500905ba573393e SHA-1: f6c8bc17825fa28096ffe5d3daf8130942a663eb SHA-256: 45300e76c50ea435231d1e4d179231362a78465bc44599ee02d554a98b30a06d
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, suggesting a phishing or credential harvesting attempt. The document body text, though heavily obfuscated, includes the phrase 'Atp adp cycle worksheet key' and the malicious URL, reinforcing the lure. No scripts were extracted, but the presence of multiple PDF links points to a technique of overwhelming search engines or users with content. The primary malicious URL is https://ttraff.cc/wb?keyword=atp%20adp%20cycle%20worksheet%20key.

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/wb?keyword=atp%20adp%20cycle%20worksheet%20key
    • http://files.theblushersmanual.com/uploads/1/3/1/4/131437753/xemawativa-fizifikafibafe.pdf
    • http://files.klemonshealthcareconsulting.com/uploads/1/3/1/4/131453560/d9802c2f758aea.pdf
    • http://files.sapcrc.com/uploads/1/3/0/7/130775867/a49b304e84.pdf
    • http://files.bookhivebeerclub.com/uploads/1/3/0/9/130969910/f65beae6b726.pdf
    • http://files.dlfinancial.org/uploads/1/3/1/3/131379749/tobij.pdf
    • http://files.fnaq.org/uploads/1/3/0/9/130969944/nivubuluro.pdf
    • http://files.todayhousing.com/uploads/1/3/0/9/130969243/vanamogukalazak.pdf
    • http://files.benbrookbobcatband.com/uploads/1/3/2/6/132696263/6240448.pdf
    • https://pawojoteloje.files.wordpress.com/2020/06/50962779677.pdf
    • https://numewim.files.wordpress.com/2020/07/xefeganenexok.pdf
    • https://tefujus.files.wordpress.com/2020/06/sasorisamikaf.pdf
    • https://pamilegimo.files.wordpress.com/2020/07/12075866401.pdf
    • https://ralidirudod.files.wordpress.com/2020/07/37337899133.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_off00005af3.bin
a4bcdb0a15762c569c05ecc0c4dbdaa22efce7b237c847781059e9d9621e1f49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF3 5040 bytes
font_01_sfnt_off00006c38.bin
89b4d19e5abd40db07a91ef56ae46c86f7cc18665a2c7d94efc93d1f784ab40d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C38 10372 bytes

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