Malicious PDF — malware analysis report

Static analysis result for SHA-256 23d1ebee5239406a…

MALICIOUS

PDF

40.6 KB Created: 2020-04-03 14:15:49 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c448ac709108baaa3d532880c429a619 SHA-1: 25118517dc1974fad6e663b5fcb431cd9f8f254f SHA-256: 23d1ebee5239406a883f62cdb9981d437b5b270285a21c4456153acede0e2a21
102 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell 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 mentions 'Hirens boot quitar contraseña windows server 2008 r2', suggesting a lure related to system administration tools. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document likely instructs users to open a password-protected archive, a common tactic to evade gateway security. The numerous external links suggest a link farm or a distribution mechanism for further payloads.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://makevotingmatter.net/uploads/1/3/0/4/130477661/130477661.html#hirens+boot+quitar+contrase%C3%B1a+windows+server+2008+r2
    • http://basementband.com/uploads/1/3/1/1/131163643/mamilinuwirona-zotor.pdf
    • http://garagedoorrepairoxnardca.com/uploads/1/3/1/4/131454397/4da0e14027.pdf
    • http://waterfrontacreagewashington.com/uploads/1/3/0/6/130604919/zatoziwiguvuser_togiradekafudo.pdf
    • http://maricultura.org/uploads/1/3/0/5/130543190/faridimubibezob.pdf
    • http://insuranceadvtg.com/uploads/1/3/1/3/131382828/ralodo.pdf
    • http://sculpturetech.net/uploads/1/3/0/2/130273624/9faefda01d.pdf
    • http://sydneyhandsurgeon.com/uploads/1/3/0/2/130289775/3780896.pdf
    • http://backporchpetsalon.com/uploads/1/3/0/4/130489072/1440092.pdf
    • http://www.thepowerofpainting.com/uploads/1/3/0/5/130546136/robamanuxebuwexawoni.pdf
    • http://foster-sustain.com/uploads/1/3/0/6/130604392/4315721.pdf
    • http://beatrixhelenaevents.com/uploads/1/3/0/7/130738943/7903369.pdf
    • http://theverybritishtshirtcompany.com/uploads/1/3/1/3/131398357/10f93607498.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_off000070e2.bin
fa1196acd0da82809f2c4b413b961ab42d325bfa73282735a52dce93bdb6dc93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70E2 9308 bytes

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