Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e7d1f9f32ddf261…

MALICIOUS

PDF

34.3 KB Created: 2018-06-11 09:18:23 -04:00 Authoring application: wkhtmltopdf 0.12.4 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 947c033b988190deadb5692409f31e7c SHA-1: 4ebba14cccdaf9b7f7f6bfb3bf3813e47fc6c316 SHA-256: 2e7d1f9f32ddf2613d4e204f7e6f5ee78f0e62e2a32af642917caa7c8930c1f5
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document is identified as a fake download lure using SEO poisoning, directing users to download a file from suspicious URLs. The document body and heuristics indicate a deceptive attempt to trick users into downloading potentially malicious content disguised as a troubleshooting guide. The primary malicious URLs are http://uncpbisdegree.com/download3.php?q=troubleshooting-ipod-nano-2nd-generation.pdf and http://uncpbisdegree.com/download4.php?q=troubleshooting-ipod-nano-2nd-generation.pdf.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9340

Heuristics 4

  • Fake 'free download' SEO-poisoning PDF critical PDF_SEO_FAKE_DOWNLOAD
    The ML classifier flagged this PDF AND it carries a visual download/call-to-action lure AND an off-domain server-side download-gateway link whose query string names a document payload. This three-signal conjunction is the fake-document / 'free PDF download' SEO-poisoning delivery pattern: the page is padded with benign decoy links to dilute classifier scores while funnelling the victim through the gateway to malware/scareware. Acting only on the conjunction keeps benign download-bearing PDFs from being misflagged.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://uncpbisdegree.com/download3.php?q=troubleshooting-ipod-nano-2nd-generation.pdf PDF link annotation
    • http://uncpbisdegree.com/download4.php?q=troubleshooting-ipod-nano-2nd-generation.pdfIn PDF document text
    • http://www.ipodbatterydepot.com/instructions/In PDF document text
    • http://events.digitalfertilizer.org/ip/ipod-screen-repair-kit-amazon-w31ua54cfl.pdfIn PDF document text
    • https://www.gatortec.com/service/In PDF document text
    • http://www.howtoselloncraigslistebook.com/how-to-unlock-ipod-touch-without-the-password/In PDF document text
    • http://www.alteclansing.net.pl/pliki/user_manual/IM600_MAN.pdfIn PDF document text
    • http://www.applerepairmanuals.com/In PDF document text
    • http://telecompk.net/2007/06/28/unlocked-iphone-in-pakistan-and-more/In PDF document text
    • http://carbatteryrecyclingi.com/battery-charge-time=c20107/In PDF document text
    • http://www.bibme.org/In PDF document text
    • http://uncpbisdegree.com/1/unshelved-book-club-v-4-unshelved-collection.pdfIn PDF document text
    • http://uncpbisdegree.com/1/the-renaissance-bride.pdfIn PDF document text
    • http://uncpbisdegree.com/1/wiring-diagram-on-mazda-b2600-charging-system.pdfIn PDF document text
    • http://uncpbisdegree.com/1/understanding-by-design-second-grade-unit-plans.pdfIn PDF document text
    • http://uncpbisdegree.com/1/your-best-life-begin-each-morning.pdfIn PDF document text
    • http://uncpbisdegree.com/1/toyota-avensis-2004-fuse-box-location.pdfIn PDF document text
    • http://uncpbisdegree.com/1/the-teachings-of-confucius-large-print-edition.pdfIn PDF document text
    • http://uncpbisdegree.com/1/when-rugby-was-rugby-the-story-of-home-nations-rugby-union.pdfIn PDF document text
    • http://uncpbisdegree.com/1/the-kgb-campaign-against-corruption-in-moscow-1982-1987.pdfIn PDF document text
    • http://uncpbisdegree.com/1/the-winner-romantek-book-1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://en.wikipedia.org/wiki/IPodIn PDF document text
    • https://www.manualslib.com/manual/247178/Panasonic-Sc-Hc30.htmlIn PDF document text
    • https://www.manualslib.com/products/Panasonic-Schc30-Compact-Stereo-System-54291.htmlIn PDF document text
    • https://www.lifewire.com/reset-restart-ipod-all-generations-1999140In PDF document text
    • https://en.wikipedia.org/wiki/History_of_iTunesIn PDF document text
    • https://www.manualslib.com/manual/159324/Sony-Icf-Cs10ip.htmlIn PDF document text
    • https://www.manualslib.com/brand/In PDF document text
    • https://www.manualslib.com/brand/sony/In PDF document text
    • https://www.manualslib.com/brand/sony/clock-radio.htmlIn PDF document text
    • http://gmauthority.com/blog/topic/mylink-stopped-recognizing-ipod-classic/In PDF document text
    • https://support.apple.com/en-us/HT201253In PDF document text
    • http://www.microcenter.com/product/459072/ARCHER_T1U_AC450_Wireless_Nano_USB_AdapterIn PDF document text
    • http://www.microcenter.com/product/478161/USB-AC53_AC1200_Dual-band_Wireless_USB_AdapterIn PDF document text
    • https://support.apple.com/In PDF document text
    • http://go.microsoft.com/fwlink/?LinkId=521839&CLCID=0409In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=246338&CLCID=0409In PDF document text
    • https://go.microsoft.com/fwlink/?linkid=868922In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=286759&CLCID=409In PDF document text
    • http://go.microsoft.com/fwlink/?LinkID=617297In PDF document text
    • https://fedoraproject.org/wiki/Licensing/LiberationFontLicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000048e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48E4 10492 bytes
SHA-256: ebe8c1bf3a3afaf2e2703475fa376b4d4f773de8690403701d3cfa1008015485
font_01_sfnt_off00006a49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A49 7492 bytes
SHA-256: d4a635213e66b7a7df18fdbcf7bd953b1374be56fed1d555cccc21602db0ccf0