Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d8b95fc05f1309a…

MALICIOUS

PDF

46.9 KB Authoring application: Solid Converter PDF
MD5: 1d86f70fc359a096bee2ea1a76a7cf96 SHA-1: 3abb19abc3b64ba1395891173ddd417f9a95d38a SHA-256: 1d8b95fc05f1309ac650966e9296054cbe879edb6616249569a5f79ad76b06b8
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF file contains a large number of embedded external links, a technique often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent. No scripts were extracted from this sample, but the extensive link farm suggests a phishing or spamming campaign.

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://njointeriors.com/uploads/1/3/0/2/130287457/8718315.pdf
    • http://caitescapestravel.org/uploads/1/3/0/7/130739024/xamipok-gosop-ligume.pdf
    • http://communityrootsinc.org/uploads/1/3/0/7/130775267/putabonofuvadaxoj.pdf
    • http://deluxefries.com/uploads/1/3/0/8/130874224/1753413.pdf
    • http://the-empowered-warrior.com/uploads/1/3/0/8/130873855/4320498.pdf
    • http://www.lite-box-electronics.com/uploads/1/3/0/3/130312937/guxawavesekim.pdf
    • http://drstellamedicalintuitive.com/uploads/1/3/0/7/130776619/wopewuvivemitubajanu.pdf
    • http://www.webshop.365soup.com/uploads/1/3/0/6/130621819/41d7831.pdf
    • http://www.tattooedferret.com/uploads/1/3/0/5/130588288/nokakiruxidevozapup.pdf
    • http://1tailgate.com/uploads/1/3/0/4/130476597/3a0f699b5.pdf
    • http://myfrozen40belowjoe.com/uploads/1/3/0/4/130488338/rikize_fupaj_bofaj.pdf
    • http://wickedwasted.com/uploads/1/3/0/6/130621643/venunuta.pdf
    • http://freecoolmathgames.org/uploads/1/3/0/2/130272619/dotatuv.pdf
    • http://www.lauraleerealty.com/uploads/1/3/0/5/130538859/3470196.pdf
    • http://kclix.net/uploads/1/3/0/4/130476981/xiparemerurorus.pdf
    • http://webdisk.cannabiscareernetwork.com/uploads/1/3/0/5/130551319/fovovajikibazu-zatimegojenima.pdf
    • http://bradwarnermedia.com/uploads/1/3/0/6/130604888/652963.pdf
    • http://bebelechecln.com/uploads/1/3/0/3/130379517/bufafexejixame_debereg_faxus_mokeka.pdf
    • http://apluspharm.net/uploads/1/3/0/4/130483759/3438560.pdf
    • http://qpcym.slpny.com/uploads/1/3/0/8/130813869/130813869.html#effects+of+globalisation+on+african+culture

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059da.bin
b3cff19e5bb7ee239896d887d03f0b21b27237063d0673439a0d456279c8325d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59DA 7796 bytes

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