Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eaea6b383a9d1bd…

MALICIOUS

PDF

36.3 KB Authoring application: Pdftk
MD5: 2229425e328019f4ea37edef31b53c52 SHA-1: 93a5607bcb844cf1f61c81482d0ae2e142fdc0e2 SHA-256: 3eaea6b383a9d1bd704854093a8bc375d15de889f270ae3df92b35c3babc6220
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF files hosted on various domains, as indicated by the PDF_SEO_LINK_FARM heuristic. This suggests a link farm or redirection mechanism designed to lead users to potentially malicious content. The ClamAV detection of 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or traffic redirection intent. 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://reshafe.com/uploads/1/3/0/5/130540661/fefenavawer_gepope_ruwega.pdf
    • http://283prospect.com/uploads/1/3/0/4/130476661/866ca4f515836.pdf
    • http://mapinternationalcorp.com/uploads/1/3/0/7/130776298/wigenuzuro.pdf
    • http://southernspurr.com/uploads/1/3/0/6/130640020/lugipenipatem_deturixok.pdf
    • http://mickaelpalma.com/uploads/1/3/0/4/130436315/7398677.pdf
    • http://misfitsagony.com/uploads/1/3/0/5/130550867/napuro.pdf
    • http://myjcloveonline.com/uploads/1/3/0/2/130271190/5674081.pdf
    • http://webdisk.byrobinraymond.com/uploads/1/3/0/6/130620594/6168377.pdf
    • http://mail.ladowney.com/uploads/1/3/0/2/130272271/samosoranetoke_ramipojutef.pdf
    • http://74-123-73-74.mgwnet.com/uploads/1/3/0/7/130776824/130776824.html#aditya+hrudayam+stotram+english+lyrics
    • http://misfitsago
    • http://lucklab.dss.ucdavis.edu/uploads/1/3/0/2/130289262/guposexun_wuzebiputogi.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000398e.bin
1e54b334f0575372d7d2c6391e02be9cba82b54f0df005df290e3e08323f1b12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x398E 7364 bytes

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