Malicious PDF — malware analysis report

Static analysis result for SHA-256 07ecff6dcd624e57…

MALICIOUS

PDF

42.8 KB Created: 2020-03-09 03:03:19 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ef4924204e2619da3ca2796b4f95cb88 SHA-1: ea2220d3a4f885b60a77d69dfba5f7a36f6f0f2b SHA-256: 07ecff6dcd624e57a644a19766acb40914a406fc35a06aa25ea5eae6dd3f5d87
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of external links, indicating a link farm or SEO spamming attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URLs point to various domains, suggesting a coordinated effort to redirect users to potentially harmful content.

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://wcd-mx98whfv.mgh-r.ch/uploads/1/3/0/3/130323174/130323174.html#iz+ukulele+chords+somewhere+over+the+rainbow
    • http://fitlovela.com/uploads/1/3/0/6/130639824/resebapemedivilibit.pdf
    • http://spatiumsolucoesemtecnologias.com/uploads/1/3/0/7/130739084/pekezidudux.pdf
    • http://mrvangeelsclass.com/uploads/1/3/0/3/130313153/radezimiledisuzip.pdf
    • http://www.kbhandmade.net/uploads/1/3/0/4/130489297/b366c4.pdf
    • http://ombali.com/uploads/1/3/0/7/130739986/xodavavi-futumokupimeneb-muxogapog.pdf
    • http://www.rodneyreedbailbonding.org/uploads/1/3/0/2/130288532/6249531.pdf
    • http://sculpedetails.com/uploads/1/3/0/7/130739669/1964347.pdf
    • http://sonoranlashes.com/uploads/1/3/0/6/130604165/ea5d8.pdf
    • http://twistedfiber.net/uploads/1/3/0/4/130489914/4605358.pdf
    • http://sehatwalafiat.net/uploads/1/3/0/7/130740053/tapabim.pdf
    • http://www.vaiscop.org/uploads/1/3/0/7/130775984/vajitalubivomogaf.pdf
    • http://limonlimonero.com/uploads/1/3/0/2/130272603/nemijojuvidaxog-wozukogufazej-debopot.pdf
    • http://djonny.net/uploads/1/3/0/7/130775626/wimipedasival.pdf
    • http://mta-sts.mail.shortroots.com/uploads/1/3/0/2/130288465/65b6e3.pdf
    • http://www.euniqueblingbar.com/uploads/1/3/0/7/130740477/2525656.pdf
    • http://kellerpestpros.com/uploads/1/3/0/3/130313191/4695347.pdf
    • http://johnwshaffstall.com/uploads/1/3/0/6/130604703/xojatuta.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_off00007343.bin
aebbfb6b765a025a792cd67831afcacf2a78bcca6ac12a192b2c13d844f5ab96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7343 8116 bytes
font_01_sfnt_off000092cf.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92CF 1708 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.