Malicious PDF — malware analysis report

Static analysis result for SHA-256 52656c8c6f90ab78…

MALICIOUS

PDF

39.5 KB Created: 2020-03-24 17:06:46 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5cba0b08d969e55097c536efbb192520 SHA-1: e19247099f28d3499dc55adb0d3d0b3e3c75be4c SHA-256: 52656c8c6f90ab78817bff4c3c2bdf7e3e4fcb47d05a9c685b2fd3568e3155b9
62 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The PDF file contains a large number of external links, many of which point to other PDFs hosted on different domains. This suggests a link farm or SEO poisoning tactic designed to drive traffic to these external resources. The document body contains garbled text and what appears to be metadata, but the primary malicious activity is the distribution of numerous external links.

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://pickhandlelakeshpa.com/uploads/1/3/0/4/130436089/130436089.html#fisher+price+whale+tub+walmart
    • http://adonaiballetacademy.com/uploads/1/3/0/7/130776340/ace296754.pdf
    • http://blackandgoldfans.com/uploads/1/3/0/3/130379305/7e808344cdea23b.pdf
    • http://maineselect.com/uploads/1/3/0/6/130605254/8895961.pdf
    • http://shopemilygrace.com/uploads/1/3/0/5/130588966/0b734fe2719e6b4.pdf
    • http://onlinesecuritysolutions.ca/uploads/1/3/0/6/130621149/5544dbc3dcf43.pdf
    • http://cuskga.com/uploads/1/3/0/5/130539728/2141157.pdf
    • http://www.tanyataylordesign.com/uploads/1/3/0/5/130588657/fivawaronuposamawura.pdf
    • http://productionalgarve.com/uploads/1/3/0/6/130621785/megumizod_velamete_guvonatekoser.pdf
    • http://biggerpicture.shop/uploads/1/3/0/7/130739876/fasibaxotuxafegokota.pdf
    • http://hotloanrate.com/uploads/1/3/0/7/130776452/lukikafugotesib.pdf
    • http://inbalancestudio.com/uploads/1/3/0/5/130588345/xewoxanabax.pdf
    • http://26rolls.com/uploads/1/3/0/7/130739046/6848090.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_off000071d9.bin
44a448838aa0fa11e810767b2067bddcc45e59fb85bf4ceee5fbe3bbc31322e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71D9 7964 bytes

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