Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b8713a6670260bb…

MALICIOUS

PDF

51.0 KB Created: 2020-05-19 12:13:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b70a59f7b191f01e7d1e77a3f55a7b92 SHA-1: 8f1cfec70e88d2ec0fdeacdfc139dedf3f29e6d1 SHA-256: 3b8713a6670260bb685104c5f55508a680371d2024348999f63c38245de58164
92 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by an ML classifier and contains a large number of external links, many pointing to other PDF files. The PDF_SEO_LINK_FARM heuristic indicates a deliberate attempt to create a link farm, likely for SEO manipulation or to distribute malicious content. The embedded URLs and the structure suggest a campaign to redirect users to potentially harmful resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://secure-pof.com/uploads/1/3/0/4/130436140/130436140.html#coffee+chinese+chess+0.5
    • http://betuniekweddings.com/uploads/1/3/0/5/130539366/3783606.pdf
    • http://ehanakennels.com/uploads/1/3/0/4/130488584/fimerokogonemesiz.pdf
    • http://plot-360.com/uploads/1/3/1/3/131382740/74532087d.pdf
    • http://jewishschoolchoice.org/uploads/1/3/0/4/130476678/rikerunarin_roponotibido_tabitime_viriwobemeno.pdf
    • http://thecreamreport.com/uploads/1/3/0/9/130969824/vebakudo.pdf
    • http://elizabethstone.net/uploads/1/3/0/4/130476183/8123217.pdf
    • http://blacktreelofts.com/uploads/1/3/0/5/130550895/nikew_wunijere_najudulefugojul_nubukudako.pdf
    • http://victoriousu.com/uploads/1/3/1/6/131606089/4454510.pdf
    • http://alyssagarberwrites.com/uploads/1/3/0/7/130775191/wewuzitiwef.pdf
    • http://hawaiibachataexpo.com/uploads/1/3/0/9/130969218/45e3c4.pdf
    • http://mrncleaningservicescom.com/uploads/1/3/0/7/130739139/mefivino.pdf
    • http://tygrellc.com/uploads/1/3/0/3/130324370/volibisumip.pdf
    • http://portsmouthboilerrepair.com/uploads/1/3/0/7/130739121/wukulodi.pdf
    • http://sugarcraftcreations.net/uploads/1/3/0/2/130272981/7735381.pdf
    • http://youniquebysherrygibson.com/uploads/1/3/0/6/130605430/1133466.pdf
    • http://kdcakes.net/uploads/1/3/0/6/130604466/vagupivufidomejepan.pdf
    • http://landofmisfittoyandcomics.com/uploads/1/3/0/4/130488513/fisubim-kojugibeguz-xarerudirez.pdf
    • http://southwestgardenandsnow.com/uploads/1/3/0/3/130379336/8780099.pdf
    • http://inverwrap.com/uploads/1/3/1/4/131453416/4524148.pdf
    • http://cydeco.org/uploads/1/3/0/2/130291545/mevobogikem_dofixapenu_sodakuxirisev.pdf
    • http://cprheartlife.com/uploads/1/3/0/4/130483614/mubolaxadibir.pdf
    • http://maryseatoninteriors.com/uploads/1/3/1/3/131397950/ximaxanupubolejalof.pdf
    • http://thetickproject.com/uploads/1/3/1/0/131071021/xobepigepawotiwu.pdf
    • http://professorsjrichards.com/uploads/1/3/0/2/130271184/bimutu.pdf
    • http://sur-realle.com/uploads/1/3/0/7/130776734/d2d8f9a.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_off0000869f.bin
e8b3ccee735ddafde8de0da84c4c22c2890ed71c951208342c700a465681f0d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x869F 5316 bytes
font_01_sfnt_off000098aa.bin
037102ac5c6b29fb2e0d63faa20559d83e47fff3e3ead7985063dd94406d90cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98AA 11784 bytes

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