Malicious PDF — malware analysis report

Static analysis result for SHA-256 326383f18c650623…

MALICIOUS

PDF

39.6 KB Created: 2020-04-09 01:18:14 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4cbc8df6905681fdc34aa4d8b5d81a3e SHA-1: f17125b42277a84d540f611395936f57c86827af SHA-256: 326383f18c650623f73df1f4a7e7cd4d09d0917d6f79f6c806649d358acef63a
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files hosted across numerous domains. This technique is often used for SEO spam or to distribute malware. No scripts were extracted, and the document body is largely unreadable, but the heuristic firings strongly indicate a link farm designed to redirect users to potentially malicious content.

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://purerockcolours.eu/uploads/1/3/0/2/130288626/130288626.html#elementlerin+periyodik+sistemdeki+yerle%C5%9Fim+esaslar%C4%B1
    • http://canyonman.org/uploads/1/3/1/1/131163834/fofixosigijefiweboju.pdf
    • http://edracingteam.com/uploads/1/3/0/4/130435712/levilelejavo.pdf
    • http://riseoftheforce.com/uploads/1/3/0/5/130550774/reven_kebemafir_nuwog_xidezigabeko.pdf
    • http://makeupbybln.com/uploads/1/3/0/5/130539908/fonejexuwijavup-selofokako-wurelixeni-jamed.pdf
    • http://nmnawgj.org/uploads/1/3/0/7/130775998/napitejotemug-wevatisiti.pdf
    • http://maizenandmolloy.com/uploads/1/3/0/3/130313728/surakef.pdf
    • http://nakedbl0ndeee.com/uploads/1/3/0/5/130550828/resavum_vakoxupabululek_rutedexeko_jopoluxulili.pdf
    • http://sallyfirino.org/uploads/1/3/0/5/130590273/b8f2b87a3d6.pdf
    • http://tatismoving.ca/uploads/1/3/0/6/130620852/5a5b6b.pdf
    • http://unionpersonaltraining.com/uploads/1/3/0/5/130551218/7608377.pdf
    • http://thequickfox.net/uploads/1/3/0/5/130551182/nofozefobovuw_tigat.pdf
    • http://teach2shoot.com/uploads/1/3/0/7/130776888/1852813.pdf
    • http://kimstacymassage.com/uploads/1/3/0/7/130739577/a2a6746d7676b99.pdf
    • http://amazing-construction.com/uploads/1/3/0/4/130435839/pozerubare.pdf
    • http://treasurehuntergame.com/uploads/1/3/0/5/130589313/6a3a667bdf5704.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_off00006b10.bin
e411ca98f5091a28338e73f90f5eba20836a74502cf2c68882aeccc242849887		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B10 10500 bytes

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