Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a416285136ec55b…

MALICIOUS

PDF

37.5 KB Authoring application: LibreOffice Draw
MD5: 7cf943f4d9054a3bcf8b1f79f5663036 SHA-1: c606986ac17980c16ad9904a659858641fd42a89 SHA-256: 2a416285136ec55b393ba6e9d237a3a29084c85fe585549bbebd749c788de14f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection as Pdf.Phishing.TtraffRobotInstall-7605656-0 further supports a malicious intent. The document body contains garbled text mixed with a few legitimate-sounding phrases and URLs, suggesting it is primarily a vehicle for distributing these links.

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 https://vubibodufujur.weebly.com/uploads/1/3/0/4/130436140/fefevovaji_kizezukefe_rinurazaka.pdf
    • http://pornpurity.com/uploads/1/3/0/2/130287938/9954062.pdf
    • http://allaroundcontracting.net/uploads/1/3/0/6/130639865/2c47f9aa5d62ad.pdf
    • http://fuzok.powking1.ru/uploads/2020/01/29/b3f8c50d01b64.pdf
    • http://mofflongboards.com/uploads/1/3/0/2/130270833/mumower.pdf
    • http://jtbeidencharles.com/uploads/1/3/0/6/130639143/266589.pdf
    • https://basovomodafan.weebly.com/uploads/1/3/0/2/130287813/6399035.pdf
    • http://tryshashby-rolls.com/uploads/1/3/0/6/130604986/tadomikaz-fesunadakivejib-penukepew-xepoxiluluv.pdf
    • http://awpcmarianna.com/uploads/1/3/0/5/130589449/dogenun.pdf
    • http://appaguides.com/uploads/1/3/0/5/130540725/zilakumidopo.pdf
    • http://strippersinaustin.com/uploads/1/3/0/4/130476242/molelisajogu-fesago-zedosunil.pdf
    • http://foothillsbiblefellowship.com/uploads/1/3/0/6/130621061/130621061.html#recommended+tylenol+dosage+per+day

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000130e.bin
3c5bf8bb284f588b5b306564889010cf60700ad919f372a24ee4a8daeeafacf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x130E 8164 bytes

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