Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4afd5aa56cdcd43…

MALICIOUS

PDF

40.8 KB Created: 2020-03-22 13:56:08 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ae475df28f4e48c746ae84c2db129813 SHA-1: 2c910b8260f1f9fccfc626d1ab942a3cfa536a48 SHA-256: c4afd5aa56cdcd43cd2a3ad3c0b95496635ed77cc1c2d66203afda1e1b2eb914
70 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files. This suggests a link farm or a method to direct users to malicious content. The presence of a 'download' button lure further supports this. No scripts were extracted, limiting the ability to determine specific payload delivery mechanisms.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://buyorsellyours.com/uploads/1/3/0/7/130775573/130775573.html#blueprint+for+progress+free
    • http://hostmaster.psweloveu.com/uploads/1/3/0/5/130589371/65eff93.pdf
    • http://www.sallieservsafe.com/uploads/1/3/0/5/130588856/6b528feeba9c8.pdf
    • http://simplifyzero.com/uploads/1/3/0/8/130873996/9896828.pdf
    • http://www.artyop.com/uploads/1/3/0/6/130621301/nopowekojuwojuv.pdf
    • http://lizzyrees.com/uploads/1/3/0/3/130313400/337d56.pdf
    • http://dentistmarketingtoday.com/uploads/1/3/0/4/130478067/mezeta-nekugunokukom.pdf
    • http://www.stevieleestudio.com/uploads/1/3/0/6/130604493/latililusapo.pdf
    • http://californiacastaway.com/uploads/1/3/0/4/130488470/78f6211ef.pdf
    • http://famousjewishbirthdaycalendar.com/uploads/1/3/0/6/130604215/pitazaxi-rugofuweg-mevemagikakew.pdf
    • http://advancedbiocomputing.org/uploads/1/3/0/4/130475992/rigokuweda-mezasuvobiwezon-farirafudekasup-govonunelukubu.pdf
    • http://krwell.net/uploads/1/3/0/4/130490056/fiwus.pdf
    • http://ilaugh.club/uploads/1/3/0/3/130323409/kanutemixarifu.pdf
    • http://sharondycreations.com/uploads/1/3/0/2/130289242/5331858.pdf
    • http://prontogarageparts.com/uploads/1/3/0/7/130776265/bufetejatepejukozoju.pdf
    • http://holdsworthfamily.com/uploads/1/3/1/0/131070334/jidazanujowuvu_wofonunupa_boranamolubog.pdf
    • http://www.germanschool.online/uploads/1/3/0/9/130969795/lurukedaxowurulu.pdf
    • http://drtimjones.org/uploads/1/3/0/7/130738528/ae707.pdf
    • http://osvwebsitestest.org/uploads/1/3/0/2/130274199/b5edc8880da8c.pdf
    • http://web.editionrb.ch/uploads/1/3/0/6/130620585/289121.pdf
    • http://www.northsidecigars.com/uploads/1/3/0/6/130605240/3effd3d0.pdf
    • http://lawncarebenton.com/uploads/1/3/0/5/130588344/313344.pdf
    • http://nissanpatrolparts.com/uploads/1/3/0/2/130289063/vexepusad_disobatiboloso.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_off00007789.bin
a8c3855960849e4debe2e25e188eb20be90091b822ff78cca09f352efe41c157		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7789 7688 bytes

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