Malicious PDF — malware analysis report

Static analysis result for SHA-256 33d1aca457275295…

MALICIOUS

PDF

38.0 KB Authoring application: Scribus
MD5: 83d35be213b1a68270764095a82ac588 SHA-1: 6e748f10b7184ceb9fe917b592172823321c1297 SHA-256: 33d1aca45727529562f7de1d1cb7cdf58b0d6c4e3c4215d6107bb5e91b74e08e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: User Execution

The PDF contains a large number of external links, identified as a PDF_SEO_LINK_FARM heuristic, directing users to other PDF files hosted on various domains. The SE_BROWSER_INSTALL_LURE heuristic indicates the document's content attempts to trick the user into installing a browser extension or update. This combination suggests a phishing or malware distribution campaign. No scripts were extracted from this sample.

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
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://uniaobrasilosc.org/uploads/1/3/0/4/130488831/4995381.pdf
    • http://thedenversocial.com/uploads/1/3/0/5/130551310/depuxeraziwixipixina.pdf
    • http://siliconez.com/uploads/1/3/0/3/130324027/natorex_gubufutox_tikim_dazimurekag.pdf
    • http://sandiegovolleyballcamp.com/uploads/1/3/0/6/130603779/5184532.pdf
    • http://squirrelnews.net/uploads/1/3/0/3/130379110/8875854.pdf
    • http://ezmantel.com/uploads/1/3/0/6/130621897/duresuvifunijo.pdf
    • http://ingenieriadesarrollohumano.com/uploads/1/3/0/7/130776818/fozabo.pdf
    • http://mydripconnect.com/uploads/1/3/0/6/130620557/2770932.pdf
    • http://h0ck.net/uploads/1/3/0/7/130775376/8935847.pdf
    • http://newageoflight.com/uploads/1/3/0/5/130552017/4078883.pdf
    • http://bellabee.org/uploads/1/3/0/8/130814161/tadud.pdf
    • http://designguard.us/uploads/1/3/0/4/130435821/1433389.pdf
    • http://www.billingspayments.com/uploads/1/3/0/4/130477702/8992150.pdf
    • http://cpanel.turningpointbaptistchurch.org/uploads/1/3/0/2/130272071/efb2ec65.pdf
    • http://glendorainhomecare.com/uploads/1/3/0/6/130603764/sugekanup.pdf
    • http://ce-central.com/uploads/1/3/0/6/130639693/wufipewebagutaba.pdf
    • http://healthidea4u.com/uploads/1/3/0/6/130604687/zilusen.pdf
    • http://leannephilip.com/uploads/1/3/0/2/130270971/f4593ed4a.pdf
    • http://muskmeloncreative.com/uploads/1/3/0/6/130603941/veripemevujupi.pdf
    • http://luchalibrevive.com/uploads/1/3/0/7/130740196/wedatibafagipa-vatavipoxuj.pdf
    • http://recoverywater.com/uploads/1/3/0/5/130541272/6591187.pdf
    • http://pmultimate.com/uploads/1/3/0/5/130589101/bemegikakogip.pdf
    • http://www.geobiologiabarcelona.es/uploads/1/3/0/2/130289265/130289265.html#base64+string+to+blob+js
    • http://pmultimate.com/uploads/1

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ee7.bin
3c4fffd004900e5be27b3dc663d9fd3754aa2caed43af2b93b4336535809757a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE7 9416 bytes

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