Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6f05bb37ab4f1ac…

MALICIOUS

PDF

61.0 KB Authoring application: Nitro PDF
MD5: bf7ac3af2da0914206c1b779fa96a6c1 SHA-1: e1176d55a630a2de267ac6282e72363223ad3fac SHA-256: c6f05bb37ab4f1ac8f44d4226318cdb6ca9471a3b66c751c0185300ff925b14f
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. This suggests a phishing or SEO manipulation scheme. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a malicious intent, likely related to traffic redirection or phishing. No scripts were extracted from this sample.

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.
  • 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://internationalpropertyconcierge.com/uploads/1/3/0/6/130621394/8565587.pdf
    • http://hostmaster.theweddingacademy.be/uploads/1/3/0/7/130738667/85c3c1905af50.pdf
    • http://sandiegosuperlawyers.com/uploads/1/3/0/5/130550867/5d52687d0e0425.pdf
    • http://nex7.tv/uploads/1/3/0/4/130483412/pozizo.pdf
    • http://www.brittanyjreid.com/uploads/1/3/0/4/130476978/budusemu.pdf
    • http://bodysoulsalon.com/uploads/1/3/0/5/130589402/946812.pdf
    • http://calljasonmyers.com/uploads/1/3/0/6/130604333/d63fb1e.pdf
    • http://midentistadepuebla.com/uploads/1/3/0/4/130489771/tebibonanepuj_nesiwunajonab_dafoxoguwox_taxojevulodele.pdf
    • http://techie-designs.com/uploads/1/3/0/3/130379561/jetemibefejakowap.pdf
    • http://inmobiliariayome.com/uploads/1/3/0/3/130323392/nejolidasuva-tuvivi-vapatamu-lusekoviwe.pdf
    • http://nolannyc.com/uploads/1/3/0/6/130604733/mevovotufuvif.pdf
    • http://yesonzforpvsd.com/uploads/1/3/0/5/130540928/rejej.pdf
    • http://montbrae.com/uploads/1/3/0/7/130740251/poxarovupe_nekinezis_depewuzimobime_tedilupiv.pdf
    • http://www.tipsytacocantina.com/uploads/1/3/0/8/130814174/zumevu.pdf
    • http://www.shadowycomics.com/uploads/1/3/0/7/130738912/sososivikanenosipa.pdf
    • http://davidcarere.com/uploads/1/3/0/5/130541763/rolire_dobisomasetori.pdf
    • http://nashobavalleyextractco.com/uploads/1/3/0/8/130813025/130813025.html#doa+sesudah+baca+yasin+latin

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_001_off00006273.bin
92b2c4c1987a2449d2202aedd6347eb64b9d387dc7030c29a226354340e8c211		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6273 30688 bytes
font_01_sfnt_off0000965d.bin
432a067fd3a2639748c385a905c4ee6399000997e8a56e8a3f3b0983481fa512		 pdf-font-stream PDF embedded font (sfnt) at offset 0x965D 7256 bytes

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