Malicious PDF — malware analysis report

Static analysis result for SHA-256 493966cf6a38c9a9…

MALICIOUS

PDF

47.8 KB Created: 2020-03-25 07:26:55 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 93417c4ad91d23c8ffa82eff7fc4d517 SHA-1: f65a6de7138beb096a73bf5dc6acac9495107efb SHA-256: 493966cf6a38c9a9294926357482a0bb9741f4e2769f5045861355a725809620
62 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a link farm, embedding numerous external links to other PDF files. One of these links, http://antiviruseprotectserviceonline.site/uploads/1/3/0/6/130620687/130620687.html#how+to+charge+the+shark+navigator+freestyle, is directly present in the document body. This suggests a social engineering attempt to direct the user to malicious content hosted on external sites.

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://antiviruseprotectserviceonline.site/uploads/1/3/0/6/130620687/130620687.html#how+to+charge+the+shark+navigator+freestyle
    • http://www.gleeaquadragons.com/uploads/1/3/0/8/130874162/zoxedaguwuwu.pdf
    • http://staffordchamberofcommerce.com/uploads/1/3/0/5/130588924/30b88ffd.pdf
    • http://gadia.info/uploads/1/3/0/7/130738956/litelene_duvujarajiweg.pdf
    • http://www.cardiffhomedesign.com/uploads/1/3/0/5/130590457/janinuvired.pdf
    • http://desatascossantceloni.net/uploads/1/3/0/6/130620529/jopeka-tuludupe-fojusuresagaf.pdf
    • http://passhachrit.shop/uploads/1/3/0/5/130588977/c101067.pdf
    • http://mrryanmuller.com/uploads/1/3/0/4/130476469/4700326.pdf
    • http://ateliermarcantoine.com/uploads/1/3/0/4/130488493/4977582.pdf
    • http://eslnaples.com/uploads/1/3/0/3/130313176/3312790.pdf
    • http://michaelmartel.com/uploads/1/3/0/5/130551704/d4b6f743ba940.pdf
    • http://mysticalrockny.com/uploads/1/3/0/8/130814341/junepexupulimutiv.pdf
    • http://www.zoom-formation.fr/uploads/1/3/0/6/130604470/7009715.pdf
    • http://bellamayphotography.com/uploads/1/3/0/7/130738921/09873480b6.pdf
    • http://mythbay.com/uploads/1/3/0/6/130620464/xixibodanebaneluzem.pdf
    • http://concertsbythecreek.com/uploads/1/3/0/6/130620194/3354120.pdf
    • http://wiki.essco.ca/uploads/1/3/0/6/130620366/85c3dceb.pdf
    • http://mail.uspaeast.com/uploads/1/3/0/8/130874521/ruvifawefug.pdf
    • http://churchilltailors.com/uploads/1/3/0/4/130476075/zejemimoliwo-fabamadugepuma-poxirife.pdf
    • http://nowator.eu/uploads/1/3/0/4/130476743/bee3b.pdf
    • http://friscocoupons.com/uploads/1/3/0/6/130604934/pugotomumap.pdf
    • http://nailsbymargaret.com/uploads/1/3/0/6/130639446/2840712.pdf
    • http://ucfifc.com/uploads/1/3/0/6/130639624/9654330.pdf
    • http://hannahmlindsey.com/uploads/1/3/0/7/130775053/f3f6af80f6f1b.pdf
    • http://oceanviewlotuvita.com/uploads/1/3/0/6/130640218/9611958.pdf
    • http://love-self-discovery.com/uploads/1/3/0/7/130776492/9279289.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008840.bin
6219a210f341bbf5ad7269028268f527021e09d3be4c85269d94c971559975c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8840 8044 bytes
font_01_sfnt_off0000a79c.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA79C 2616 bytes

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