Malicious PDF — malware analysis report

Static analysis result for SHA-256 14a8c0f87735d190…

MALICIOUS

PDF

38.0 KB Authoring application: SWFTools
MD5: ef8b25d5b330d865a18e5ca365d0bdff SHA-1: e8f631674cf2ac587828cc9ed6f76e4078f47fc6 SHA-256: 14a8c0f87735d190589918aa74f9c7acacef47b6d138fdcd48bd8a7bd6244d48
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF files hosted on various domains, identified by the PDF_SEO_LINK_FARM heuristic. This suggests a tactic to manipulate search engine results or distribute further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, with ClamAV identifying it as Pdf.Phishing.TtraffRobotInstall. No scripts were extracted from this sample, but the extensive link farm is the primary indicator of malicious activity.

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://cxleadership.com/uploads/1/3/0/2/130272424/214638.pdf
    • http://www.begodpowered.com/uploads/1/3/0/2/130287482/4319161.pdf
    • http://lucasgarron.net/uploads/1/3/0/8/130813997/xoviza.pdf
    • http://leonconsulting.net/uploads/1/3/0/6/130620393/fdfb9832.pdf
    • http://obituar.org/uploads/1/3/0/3/130379239/6303766.pdf
    • http://dekorartis.com/uploads/1/3/0/7/130775685/6125351.pdf
    • http://myfampow.com/uploads/1/3/0/2/130289163/kijosufoviri-xiguzamexudemev-medegikabid-xunajelokodoso.pdf
    • http://bezzies-bakery.com/uploads/1/3/0/5/130550874/vojogagalew_seravomebuxili_webuwo.pdf
    • http://drashmani.com/uploads/1/3/0/6/130605165/bibamewe.pdf
    • http://medicalmarijuanamenus.com/uploads/1/3/0/8/130814967/vituxos.pdf
    • http://maskcarabeautycolormatch.com/uploads/1/3/0/8/130814056/gomonabevugamozeriwo.pdf
    • http://crtropicallivethedream.com/uploads/1/3/0/6/130605071/dajewu.pdf
    • http://jobcentreguide.net/uploads/1/3/0/2/130287915/tiwanaju.pdf
    • http://seanhaseymassage.com/uploads/1/3/0/3/130313123/gebujoz.pdf
    • http://courtneysuzannelee.com/uploads/1/3/0/7/130740438/cb960ec53f07.pdf
    • http://angelavinson.com/uploads/1/3/0/4/130475877/komagelekofazo.pdf
    • http://lampeelife.com/uploads/1/3/0/7/130738503/damek.pdf
    • http://andersoncapsim.com/uploads/1/3/0/2/130292173/fexapusumujo-gunukekelafof-tozigij-sigigikunema.pdf
    • http://hawgholster.com/uploads/1/3/0/5/130543648/5802572.pdf
    • http://lostjedis.net/uploads/1/3/0/7/130775405/zorizotur_pufapejejize.pdf
    • http://cavsummit.com.au/uploads/1/3/0/4/130488175/0029f92.pdf
    • http://host172.carmichaelnl.com/uploads/1/3/0/6/130604430/130604430.html#compare+the+shareholder+and+stakeholder+models+of+corporate+governance

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033f8.bin
00c53b2390987f4d6183d63c98187937888f35578b0f1c23d247fc2886d2cc24		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33F8 7988 bytes

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