Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d054b233c135da1…

MALICIOUS

PDF

41.4 KB Created: 2020-04-07 13:24:20 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3fddd429d00e871b22d27d924dad4d13 SHA-1: ad3a12ab462a8965902a6eb155f1d6316a50b8e6 SHA-256: 7d054b233c135da1fb6352c5ffafdcfd0f7cdc91bc2b8fa98587e2053ba9ab78
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains text related to financial statements and Excel, suggesting a lure. The primary attack pattern involves directing users to a vast network of linked PDF files hosted on various domains, likely for SEO manipulation or to serve as a distribution point for further malicious activity. 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://anaheimhillsbuzz.com/uploads/1/3/0/8/130874012/130874012.html#como+hacer+estados+financieros+proyectados+en+excel
    • http://naturesaromasoaps.com/uploads/1/3/0/7/130775942/fuxebafuroj.pdf
    • http://taylorleefit.net/uploads/1/3/0/6/130622042/6080599.pdf
    • http://platinumbronzespraytans.com/uploads/1/3/0/6/130603740/973a590d225cc.pdf
    • http://alleanzaassociates.com/uploads/1/3/1/1/131164157/wepabubatigeti.pdf
    • http://eze-fab.com/uploads/1/3/0/5/130543682/xupupegevukiv.pdf
    • http://mta-sts.mx.jtetlp.org/uploads/1/3/0/6/130621669/dixami.pdf
    • http://paleoandthesauna.com/uploads/1/3/1/0/131070627/2f29729f77d84.pdf
    • http://thefionarae.com/uploads/1/3/0/4/130488328/wegatapugavakone.pdf
    • http://kanddrecovery.info/uploads/1/3/0/6/130621840/migigipiwudujovu.pdf
    • http://incrediblemeatdeals.com/uploads/1/3/0/6/130604177/bujabelijeniber.pdf
    • http://lqhconstrustion.com/uploads/1/3/0/5/130547275/dudeparibovop.pdf
    • http://avoidforeclosurecharlotte.com/uploads/1/3/1/4/131407492/vuwebimibajaxezez.pdf
    • http://timpricesportsbooks.com/uploads/1/3/0/6/130621205/14c2969027.pdf
    • http://jbbirds.com/uploads/1/3/0/9/130969313/973a6ca2.pdf
    • http://agfxinvestments.com/uploads/1/3/0/7/130775104/bafaluxivemulemul.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_off000074c7.bin
1afc9cd60305842b421c146797fd241bbee15ddf56b16e5bb3c4c7e1f6f01ef5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74C7 9248 bytes

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