Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6c78a036e5ca228…

MALICIOUS

PDF

43.3 KB Created: 2020-03-28 06:03:53 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 457cbd1bd7d90ce0a993321d45b5c2f5 SHA-1: 522c489441c92640a8b8cf616447868785cdaa29 SHA-256: c6c78a036e5ca2280c99a67fd15c6d55fcdd9c20b941ebfbc2355fde4b012f09
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links to other PDF documents hosted on various domains. This behavior is indicative of a link farm or a distribution mechanism for further malicious content. The primary heuristic firing, PDF_SEO_LINK_FARM, strongly supports this assessment. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery or execution methods.

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://teshuvah.international/uploads/1/3/0/6/130639197/130639197.html#clasificacion+de+las+habilidades+para+la+vida+segun+la+oms
    • http://momsvoteyyc.com/uploads/1/3/0/2/130289196/bamepoxuk.pdf
    • http://phillbriscoe.net/uploads/1/3/0/4/130436439/7783269.pdf
    • http://el038.elrepco.com/uploads/1/3/0/4/130483587/mopawosavus_vopaguj_xopujidi.pdf
    • http://webdisk.thebellevie.com/uploads/1/3/0/6/130621597/satab.pdf
    • http://himagazineonline.com/uploads/1/3/0/7/130776349/nidopogad-levovupo-fajog-foxaruki.pdf
    • http://www.dampdogbooks.co.uk/uploads/1/3/0/2/130289773/2454697.pdf
    • http://resource-agencies.eu/uploads/1/3/0/2/130291800/jigojeliru-xawekokisesab.pdf
    • http://www.wheelhorseparts.net/uploads/1/3/0/7/130775443/7294cb92992c1c.pdf
    • http://matsigura.net/uploads/1/3/0/7/130776712/xojasejododugunogu.pdf
    • http://stumpergasse.com/uploads/1/3/0/3/130313324/xekujof.pdf
    • http://hostmaster.kimnorrie.co.uk/uploads/1/3/0/5/130540046/bd4f4.pdf
    • http://cblacrosse.com/uploads/1/3/0/6/130604621/a989f25.pdf
    • http://carolsclosetlexington.com/uploads/1/3/0/2/130288682/pupunowubidugo_foborew_mofasamipudopi.pdf
    • http://bluelotustribe.com/uploads/1/3/0/2/130272396/besuvikerebakasex.pdf
    • http://www.inceptionsdesign.net/uploads/1/3/0/4/130435746/8573072.pdf
    • http://helencolesfitness.co.uk/uploads/1/3/0/6/130621077/xozokogabe-jazamokaw.pdf
    • http://biltmorecreations.com/uploads/1/3/0/6/130621941/sezuxepukebiru-gumej.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_off00007f2a.bin
c33d3f992ab4cb4934c38735fbf60dc7df87f99f8287f1a852f539d05dfd9d8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2A 8212 bytes

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