Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d0a02086f7c93f7…

MALICIOUS

PDF

43.1 KB Created: 2020-03-29 21:25:17 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c2b01fe8b88c3970f7d698e284e8e742 SHA-1: 392ce60a70eefe77b7c6cb7db7bf9d6de63ef72b SHA-256: 3d0a02086f7c93f70b839b6e837bc55d912ad2986dd8f0373c20c16e5e63ec0c
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files. The ML classifier strongly indicates maliciousness. The primary attack pattern appears to be a link farm designed to manipulate search engine results or redirect users to potentially malicious content hosted on numerous domains.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://mta-sts.mx.grandsalinelibrary.com/uploads/1/3/0/5/130551623/130551623.html#the+reluctant+fundamentalist+changez+job
    • http://sparklesquadaz.com/uploads/1/3/0/6/130639797/734ea3a2.pdf
    • http://buildabettie.com/uploads/1/3/0/5/130545932/wujot.pdf
    • http://miketaylorgrading.com/uploads/1/3/0/3/130323488/749bdbb.pdf
    • http://accuplus-parkour.com/uploads/1/3/0/8/130873796/9878099.pdf
    • http://adaptingbrains.com/uploads/1/3/0/5/130551325/9656042.pdf
    • http://collision-specialties.com/uploads/1/3/0/2/130271244/kebiwuvi_midevajetoguv_getuvopu_rizovivuz.pdf
    • http://siosefalakalaka.com/uploads/1/3/0/6/130639087/1067061.pdf
    • http://tamarakorte.nl/uploads/1/3/1/4/131406140/gaziwusadoza.pdf
    • http://menagainstcancer.net/uploads/1/3/0/6/130621730/f85e2807603.pdf
    • http://pristinebeautyclub.com/uploads/1/3/0/3/130312951/lidoravisid.pdf
    • http://understandears.com/uploads/1/3/0/7/130738593/3456026334010f.pdf
    • http://myloganscloset.com/uploads/1/3/0/7/130739711/jemipofuze.pdf
    • http://cirquedusoufflebyt.com/uploads/1/3/0/4/130483393/tegategajiposerutun.pdf
    • http://realmrketo.com/uploads/1/3/0/4/130483937/miwibu-bozenawikete-vibuvexipelame.pdf
    • http://commandlineidiot.com/uploads/1/3/0/6/130639571/9967375.pdf
    • http://soullinks.org/uploads/1/3/0/3/130379142/gumawig-suvamu.pdf
    • http://aria-plays-games.com/uploads/1/3/0/5/130540501/givelaku.pdf
    • http://joycrownedproducts.com/uploads/1/3/0/3/130379101/048fd3374e2a9.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_off00007fba.bin
7a2744d078e3285a5bf370f3b14e55fa2999a042a1b1ec06f3aa66f110cc9e15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FBA 8084 bytes

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