Malicious PDF — malware analysis report

Static analysis result for SHA-256 a134b4b2dfe4947c…

MALICIOUS

PDF

41.0 KB Created: 2020-03-23 14:57:25 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: e34c0647a5eb41345691a91dcae4f301 SHA-1: 9d1c8611803256e38e9c1dd6dc6c810ea0043154 SHA-256: a134b4b2dfe4947c47f837bfee24c7f65a2c69b7f6b85afd66a20a6572bbfe3d
96 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body contains a reference to 'St simons island tide chart september 2019', suggesting a lure for users seeking specific information. The primary intent appears to be directing users to a network of websites, likely for SEO spam or to host malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://dsn-122.com/uploads/1/3/0/5/130551671/130551671.html#st+simons+island+tide+chart+september+2019
    • http://mail.nizefaderz.de/uploads/1/3/0/7/130775341/xumodejavorafiv.pdf
    • http://artofclinicalempathy.com/uploads/1/3/1/1/131164417/fakotanawokag.pdf
    • http://money4real.org/uploads/1/3/0/6/130639984/ef2d80a0b3cdc.pdf
    • http://www.edclarkesound.com/uploads/1/3/0/3/130379430/wonirawezek-genunozubiviba-nutoxawitam.pdf
    • http://alphcity.com/uploads/1/3/1/0/131071180/704571.pdf
    • http://comercializadorasosasllc.com/uploads/1/3/0/5/130543373/74278d22.pdf
    • http://9f60ljd502.com/uploads/1/3/0/9/130969191/kerazoxefazopovavaw.pdf
    • http://starkdkirbyjr.com/uploads/1/3/0/7/130776865/guribi_finobotalo_gudogat_zifetelu.pdf
    • http://lenyx.com/uploads/1/3/0/7/130775959/716615.pdf
    • http://www.new-evening.com/uploads/1/3/0/7/130775936/tubevukitabu.pdf
    • http://www.clrkstreet69.com/uploads/1/3/0/6/130604725/lutaxobuk-nudutiri.pdf
    • http://natalieramos.com/uploads/1/3/0/2/130271148/8cce5613f96303d.pdf
    • http://autoconfig.thegospelstation.com/uploads/1/3/0/3/130323237/zojiw.pdf
    • http://store.megabakery.us/uploads/1/3/1/0/131070362/66e35d4ec.pdf
    • http://artistinlivingcolor.com/uploads/1/3/0/8/130874671/2603367.pdf
    • http://prodsquad.net/uploads/1/3/0/6/130621148/fb1a29a304884.pdf
    • http://nsainapparel.com/uploads/1/3/0/2/130272921/lagenoneliwozub-rukito.pdf
    • http://loveyogaandart.com/uploads/1/3/0/2/130272649/pujokasarabibof-firalogesur.pdf
    • http://motorcyclespeaker.net/uploads/1/3/0/5/130550891/8b4235adb41e9.pdf
    • http://accel-advisors.com/uploads/1/3/0/8/130874252/607f29ff2c.pdf
    • http://domelinsurance.net/uploads/1/3/0/3/130313388/417b0718.pdf
    • http://www.liverpooltaxis4u.com/uploads/1/3/0/3/130324137/vomajupudokelel.pdf
    • http://debragoetz.com/uploads/1/3/0/5/130588548/letafibaguxit.pdf
    • http://motorcyc
    • 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_off00007568.bin
9087dbfe150ea4460520b013cb807714618167090abffd212b706a112c085df5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7568 8580 bytes

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