Malicious PDF — malware analysis report

Static analysis result for SHA-256 d79223f28f643fa6…

MALICIOUS

PDF

47.7 KB Created: 2020-04-01 20:00:56 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 41623fa17dbfb7c0eb754afab8a71334 SHA-1: 02c2362268dd593338e81eea8d953612bed4137e SHA-256: d79223f28f643fa6e02888aa369c278559851c1c461e087ad0a5d443ea9893c8
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, all structured similarly, suggesting a link farm designed to manipulate search engine results or redirect users to potentially malicious content. The document body contains garbled text and a URL that appears to be part of this link farm. No scripts were extracted from this sample.

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://bahamasaugustllc.com/uploads/1/3/0/9/130969310/130969310.html#elastic+heart+easy+piano+chords
    • http://bonniesminiaturedolls.com/uploads/1/3/0/2/130289779/baxetumemuk.pdf
    • http://poubellepublishing.com/uploads/1/3/1/1/131163632/e8dfc983498.pdf
    • http://nutribreast.com/uploads/1/3/0/6/130603983/8526425.pdf
    • http://ssquare.us/uploads/1/3/0/4/130476978/62c472.pdf
    • http://lancersonline.info/uploads/1/3/0/2/130287239/22029cf04a7b25.pdf
    • http://kirugraphics.com/uploads/1/3/0/7/130739177/solajuromon_wubexoro_zomuluvozigudon_duwav.pdf
    • http://granolaandco.com/uploads/1/3/0/7/130775644/fekuzenugogepepisel.pdf
    • http://livemusicgozo.com/uploads/1/3/0/7/130739086/9111361.pdf
    • http://claimsteward.com/uploads/1/3/0/8/130874281/aa29dad16ec6.pdf
    • http://dsbcounseling.net/uploads/1/3/0/7/130775934/7475956.pdf
    • http://mamaligned.com/uploads/1/3/1/4/131438036/bab338303c0143.pdf
    • http://gatewayhobbies.com/uploads/1/3/0/2/130289406/faxojamonatiwado.pdf
    • http://amandabechtelart.com/uploads/1/3/0/6/130639719/7450406.pdf
    • http://tennesseeedconsultants.com/uploads/1/3/0/5/130539348/gurofemoxi-koguzipo.pdf
    • http://scenemagazine.com/uploads/1/3/0/2/130271117/dijovafafadenus.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000091f5.bin
51820d994508d62fe5aabaad9ab349127675d7edf077276948f50720422de8a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x91F5 8284 bytes

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