Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ed1a3423d356393…

MALICIOUS

PDF

35.7 KB Authoring application: ImageMagick
MD5: 05aa8f4908e35cfece2c159bb32637d2 SHA-1: be5b7fb599cf9abf47a1239c37d6cb59294bfc35 SHA-256: 8ed1a3423d35639344fafaeb6be4f02c880e5163a641569f8469c16f7adc9fb7
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing or SEO spam campaign. The primary attack pattern involves embedding a large number of external links, directing users to a link farm hosted on various domains. The document body contains garbled text and some URLs, but no executable scripts were extracted. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates the intent is to drive traffic to these external PDF files, likely for malicious purposes such as phishing or malware distribution.

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://orendagametables.org/uploads/1/3/0/7/130739332/buvifejuwa_gepezunonuruj_janifa_netagi.pdf
    • http://hattrickvideo.com/uploads/1/3/0/6/130621238/lokobomubekubol-pojejesa-mabowobifoso-wapunububogu.pdf
    • http://dobikeplan.com/uploads/1/3/0/6/130604229/9141019.pdf
    • http://mykotherapeia.gr/uploads/1/3/0/5/130588961/wuserijewuwedarejuz.pdf
    • http://learnhowtoguitar.com/uploads/1/3/0/4/130488850/zesoxixaxobiwirazuba.pdf
    • http://mkstucco.com/uploads/1/3/0/7/130738554/968782.pdf
    • http://alternativerealitycbd.com/uploads/1/3/0/7/130740440/xumibupa-mevifede-vutefabaxa-nolowotuf.pdf
    • http://3albab.net/uploads/1/3/0/6/130620758/gegegitasir-gapeladakobo.pdf
    • http://jakestreehavertown.com/uploads/1/3/0/5/130590157/5067094.pdf
    • http://hostmaster.djthax.com/uploads/1/3/0/6/130639327/wogeruluzanuf.pdf
    • http://shoalcreekinteriors.com/uploads/1/3/0/2/130289461/xuzale.pdf
    • http://campaign500.com/uploads/1/3/0/6/130620952/9f9017089c83.pdf
    • http://naonaprestige.com/uploads/1/3/0/2/130291673/rixemoru.pdf
    • http://buildyourbody.online/uploads/1/3/0/6/130639170/niged.pdf
    • http://proaccessinc.com/uploads/1/3/0/5/130590059/gosal_famofetikoki_nebesutetufutek_tetepire.pdf
    • http://traveltyme.voyagerwebsites.com/uploads/1/3/0/4/130492771/130492771.html#aspergers+diagnosis+test+adults

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003106.bin
1884e45b29a3551095f19f43cb8cb3b20d3ccf00c635253771754093387e1341		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3106 7668 bytes

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