Malicious PDF — malware analysis report

Static analysis result for SHA-256 8029e65a0ee3b6f1…

MALICIOUS

PDF

43.9 KB Authoring application: PDF Studio
MD5: e527b2735aad8234b1f3093ddc91c39e SHA-1: 2bf0a007b3910ccb255c02d06873e63dfeefc9a0 SHA-256: 8029e65a0ee3b6f16a12b12771c0305f35098d2f26bec153c5a81b43e2f050e0
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV also flagged this PDF as malicious, with ClamAV specifically identifying it as 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The document body, though partially obfuscated, contains references to financial terms and URLs, suggesting a phishing or SEO spamming lure. No scripts were extracted, but the link farm indicates a likely attempt to redirect users to malicious content or for SEO manipulation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://artfullofjoy.com/uploads/1/3/0/3/130379356/3876014.pdf
    • http://mindfullovematchmaking.com/uploads/1/3/0/5/130551739/5025118.pdf
    • http://mybabybubulah.com/uploads/1/3/0/7/130739530/1c0e196fc1a810.pdf
    • http://watersidersnbpt.com/uploads/1/3/0/7/130738830/a931b406.pdf
    • http://jmaisd.net/uploads/1/3/0/6/130621839/maxuwedosobuwir_gugoronebuwojos_vodegojotiti.pdf
    • http://juliejesternewman.com/uploads/1/3/0/6/130604804/130604804.html#glossary+of+financial+management+terms.+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000109a.bin
f678723a75061580e07ed3b00cca611c24bf6660b36b3f3166ccb5526876ef2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x109A 7912 bytes

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