Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd1b3c88efc24790…

MALICIOUS

PDF

46.2 KB Authoring application: Mobipocket Creator
MD5: ec818bcab65cf47072aa2025abf69730 SHA-1: 87ea95b84204cadee14999c91b54a1bb9770e602 SHA-256: bd1b3c88efc24790384ea9796695fcaa3d44ac9062fc946a198b5d793654aab8
152 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links pointing to external PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV detection strongly suggest malicious intent, specifically identified as phishing or a traffic redirection robot. The document body, though heavily obfuscated, contains references to 'Alice in Wonderland' and includes several URLs that are likely part of a link farm designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://zazekul.flowers-sale.ru/uploads/2020/01/28/vobadob_dedolijavidito_bigutet.pdf
    • http://audio-start28.icu/uploads/2020/01/28/380426692b8.pdf
    • http://fidojido.bestperles04.fun/uploads/2020/01/28/xipikefuresawil.pdf
    • http://neku.vertoli.ru/uploads/2020/01/27/1666449.pdf
    • https://wetukaginowup.weebly.com/uploads/1/3/0/4/130488661/xiredinemakafagod.pdf
    • http://votoroleke.healthnotes.tech/uploads/2020/01/28/lonukigobov.pdf
    • https://baranapupulineb.weebly.com/uploads/1/3/0/3/130323167/redopoluzapopafatoro.pdf
    • http://gera.rbc-crypto.ru/uploads/2020/01/27/fozubo-medibawed.pdf
    • http://dewiw.rkmw.ru/uploads/42389675.html#alice+in+wonderland+where+are+you+go

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001203.bin
73099aac6432061aac152ab56edce22cf3761825b198fe84e5e8ace29fa17583		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1203 8344 bytes
font_01_sfnt_off00006dd6.bin
3d0c0a3ded87daa061562adcaf7b65540d243e2d76e08884dd4168f6669e341c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD6 16272 bytes

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