Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa010978c44e7680…

MALICIOUS

PDF

46.2 KB Created: 2020-05-06 07:20:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4bcca3e69a7047207d18b66106982c7e SHA-1: 04cd4cd1dd5d6e845c6d57757e41e309a69c967f SHA-256: fa010978c44e768011f932084d4776a4a16664f088b97d8c491c016d7482f172
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which point to uniquely named PDF files on various domains. This pattern is indicative of SEO spam or a phishing lure designed to drive traffic to a network of sites. The embedded URLs and the PDF_SEO_LINK_FARM heuristic strongly suggest this malicious intent. No scripts were extracted from this sample, limiting the ability to determine further payload delivery or execution.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://hrsolutionsforsocal.com/uploads/1/3/0/5/130588906/130588906.html#sql+format+decimal+to+integer
    • http://demonicbarbie.com/uploads/1/3/0/2/130270946/7737806.pdf
    • http://colaisteduniascaighcahir.com/uploads/1/3/1/6/131606583/fugabemonetanofet.pdf
    • http://dragonflyhomesllc.com/uploads/1/3/1/6/131636903/jogawegujukakajulesi.pdf
    • http://hammeredbyhandpikeplacemarket.com/uploads/1/3/1/1/131163788/guvivolasiram_filaki_kotudererux_xevatatuk.pdf
    • http://svmarchmadness.com/uploads/1/3/0/6/130604646/fapibavisokisefizaxe.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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_off00007035.bin
b46713a92b5e7034410313e5172cc1443427973418bd7803f4568d5d7fe4973e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7035 12096 bytes
font_01_sfnt_off000099a0.bin
c9ee65a4586db88bcc3403b6fc5bdafe01148a018571908057e07299a9ce9595		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99A0 16260 bytes

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