Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0c7811ffe3951a2…

MALICIOUS

PDF

40.6 KB Created: 2020-04-08 18:42:16 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9b0613b7787b6dee7264a985a824f4ba SHA-1: 50a745d22a3ea62dbcf10c02e31c3d629e68857e SHA-256: e0c7811ffe3951a25a91d0ab2bc89d5e1097908b9f3a926bcbf8fb17b20925d2
92 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. The document body references 'mr. robot' and includes a URL that appears to be a download link, suggesting a social engineering lure to trick users into downloading potentially malicious files. The ML classifier strongly indicated maliciousness.

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://velmacdevelopments.com/uploads/1/3/0/8/130874238/130874238.html#download+mr.+robot
    • http://wendymmillerpsyd.com/uploads/1/3/0/6/130639755/zeritu-rutawumijemep-sipikili-tesuz.pdf
    • http://smithmethod.com/uploads/1/3/0/2/130272579/sofigigulofijim-kozujonetiw-falodijavit.pdf
    • http://hungerheroes2018.org/uploads/1/3/0/6/130604872/xevufamab.pdf
    • http://potusmatch.com/uploads/1/3/1/1/131163613/9caaeb.pdf
    • http://lehighvalleyofficiant.com/uploads/1/3/1/0/131070581/debekifope.pdf
    • http://webcard.online/uploads/1/3/1/4/131438121/3248447.pdf
    • http://essentialoil-education.com/uploads/1/3/0/8/130873954/5da5e6e9cb3.pdf
    • http://artistictastescatering.com/uploads/1/3/0/4/130488631/fc0a65c.pdf
    • http://intelroom.net/uploads/1/3/0/8/130814065/sunuwewap_kizixere_nurikiwegofuro.pdf
    • http://buywgsnow.com/uploads/1/3/0/6/130604556/vimudaravep.pdf
    • http://kalsing.dk/uploads/1/3/0/5/130539099/jedawefipa.pdf
    • http://nomorepayments.org/uploads/1/3/0/9/130969757/3760202.pdf
    • http://mrgatewoodcody.com/uploads/1/3/0/8/130814529/bebobuve.pdf
    • http://freakmaniac.com/uploads/1/3/0/6/130603887/256423.pdf
    • http://www.avastrategy.com/uploads/1/3/0/6/130603928/guleripep.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_off000075b6.bin
d61827e16f613d0c863c843d9cd704338d8ca795cb072622938e83066d65b86f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75B6 7892 bytes

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