Malicious PDF — malware analysis report

Static analysis result for SHA-256 8765062b9d8bbbad…

MALICIOUS

PDF

43.4 KB Authoring application: SWFTools
MD5: 94e3d7ee25232240d577a1852f2e7ec9 SHA-1: bc7fdfdbf2526ae560ca327c6992349d701d7b9c SHA-256: 8765062b9d8bbbada174529110611c38f97668074a9ec1b097be7a8e09fd3c9b
192 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of links to external PDF files hosted on various domains, indicating a link farm or a method to distribute further malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://myhypecheck.com/uploads/1/3/0/7/130776592/a33038.pdf
    • http://lucidlabview.org/uploads/1/3/0/6/130620965/vukowugafuzeduvudun.pdf
    • http://rebirthhypnosis.com/uploads/1/3/0/3/130323765/pavoluxax-muzikanemuv-nopepi.pdf
    • http://www.nuryerkaplamalari.com/uploads/1/3/0/4/130475994/puvikukorad.pdf
    • http://808enterprises.net/uploads/1/3/0/4/130489523/d89422e15860f.pdf
    • http://healingpathapp.com/uploads/1/3/0/2/130289332/5277605.pdf
    • http://tonyfranciskus.com/uploads/1/3/0/6/130604556/sigokop.pdf
    • http://bailey.queenanneelementary.com/uploads/1/3/0/4/130490602/6436209.pdf
    • http://milieu-art.com/uploads/1/3/0/5/130588337/nikozepomojo.pdf
    • http://simonheptinstall.com/uploads/1/3/0/2/130271057/jubabotemanomo.pdf
    • http://ralyvas.store/uploads/1/3/0/5/130539926/zikinudujevuligan.pdf
    • http://shadowbendtest1.com/uploads/1/3/0/3/130312991/risusuboxis.pdf
    • http://wildflowerfilm.com/uploads/1/3/0/7/130739502/daxesiw.pdf
    • http://hostmaster.photographylia.com/uploads/1/3/0/5/130539553/1281785.pdf
    • http://www.tbreezycentral.com/uploads/1/3/0/7/130776269/2244130.pdf
    • http://usmgsol.com/uploads/1/3/0/5/130540619/c2362e59ad345.pdf
    • http://homoagenda.com/uploads/1/3/0/5/130539783/jiwakiwi_revabi_zokukaguwoke_pojerasavijezaz.pdf
    • http://concordantcapitalpropertymanagement.com/uploads/1/3/0/6/130604048/zurusubexubi.pdf
    • http://danielrinaldi.com/uploads/1/3/0/6/130621874/lisokelivek.pdf
    • http://blackhawbuilders.com/uploads/1/3/0/6/130604487/130604487.html#cambridge+flyers+test+reading+and+writing

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048ae.bin
7ceee112401b398dc8a8301275a3e09498ee7f3df199bdcafea134e2561d0df0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48AE 9740 bytes

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