Malicious PDF — malware analysis report

Static analysis result for SHA-256 8988b42cc538be6b…

MALICIOUS

PDF

39.2 KB Authoring application: pdf-parser
MD5: 691f32af8d8cc935aacc3f76789e147e SHA-1: 78c94fd4e0a0ab8e183946cd7f7aff2091ce64cb SHA-256: 8988b42cc538be6b1a53c1bf0867ff1b2856ecca7ac26e37b4fb562a2564d4d8
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file exhibits characteristics of a phishing campaign, as indicated by the ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0'. The critical heuristic 'PDF_SEO_LINK_FARM' reveals a large number of embedded external links, with 'crazyjean.com' being a dominant host. These links likely serve to redirect users to malicious content or phishing pages. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms.

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://crazyjean.com/uploads/1/3/0/4/130483875/bavibobewak_vokojaruji.pdf
    • http://leaningdogstuffies.com/uploads/1/3/0/7/130739152/a4ad7b2cd75e.pdf
    • http://loebclassicallibrary.net/uploads/1/3/0/2/130287835/vosogitevuramu-kubazebomomito-nurodajajesi.pdf
    • http://nomegasitehere.com/uploads/1/3/0/6/130640175/2064773.pdf
    • http://www.coralsunaviation.net/uploads/1/3/0/4/130489090/7511601.pdf
    • http://molisanisocal.com/uploads/1/3/0/5/130539092/kejodipor.pdf
    • http://jamesradack.net/uploads/1/3/0/4/130489530/7006533.pdf
    • http://holdensmithproductions.com/uploads/1/3/0/6/130620640/9335942.pdf
    • http://tintwerx.net/uploads/1/3/0/7/130775002/20e3139742.pdf
    • http://romanpublications.com/uploads/1/3/0/7/130776747/cb723abf.pdf
    • http://becomebigm.com/uploads/1/3/0/4/130483539/31677b0e1c88669.pdf
    • http://webmail.digcitinstitute.com/uploads/1/3/0/3/130323437/zupazopobunas.pdf
    • http://hostmaster.insiderrisk.co.uk/uploads/1/3/0/8/130874371/nopijedezinox.pdf
    • http://www.wordlaundry.com.au/uploads/1/3/0/2/130289502/fddc58b.pdf
    • http://74-123-73-205.mgwnet.com/uploads/1/3/0/4/130488217/130488217.html#the+chronicles+of+narnia+silver+chair
    • http://webmail.digcitinstitute.com/uploads/1/3/0/3/130323437/zu

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004024.bin
81d696c82f69ff45b8818609c4ca0578ba537beeb1a97fddd4c2faf597236919		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4024 7732 bytes

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