Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddb30fab3dabac04…

MALICIOUS

PDF

38.8 KB Created: 2020-09-17 10:54:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc7c4dc8576e9daa8596268629c5df6b SHA-1: 683fcfd21aa4309d1d480932f9140b325644b8ba SHA-256: ddb30fab3dabac04d0b4d0eb9afb3476c41e8b5169935de40ec735f68d076955
150 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a malicious redirector, disguised as a movie download lure. The ML classifier strongly indicated maliciousness. The embedded links are designed to redirect users to potentially harmful websites, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.club/wix?keyword=baahubali+2+hindi+movie+watch+online
    • http://mofov.lauradsperspective.com/uploads/1/3/1/3/131384201/b5d308e84789a0f.pdf
    • http://xuvopifa.thehockeyprofessor.org/uploads/1/3/0/8/130874426/lijulamuzo_dakow.pdf
    • http://metev.empoweredhospitality.com/uploads/1/3/0/8/130814328/09e79b79da7986.pdf
    • http://files.thewellwithinus.com/uploads/1/3/0/8/130874278/5991433.pdf
    • http://gegewilok.fortruckerthriftshop.org/uploads/1/3/1/3/131379741/4169b.pdf
    • http://files.dontfeeloldinside.com/uploads/1/3/1/3/131384635/kubagera.pdf
    • http://nojezuxa.thecrossingchurch.net/uploads/1/3/1/3/131379246/4482381.pdf
    • http://nureruju.aakarate.com/uploads/1/3/1/1/131163725/763d3.pdf
    • https://cdn.shopify.com/s/files/1/0429/2096/8351/files/baixar_creator_antigo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3492/7513/files/difigopebogixozozete.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d32.bin
1442649eabc8f59da8a195d5cf41ddf87add5030902624ffa398cfbbbf5582e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D32 5260 bytes
font_01_sfnt_off00005ef6.bin
9e49ff2eb93b21b1aa355fc037cb99e0ae07282ad3826c2b7168d9f1215bd604		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF6 9852 bytes
font_02_sfnt_off000080c2.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80C2 4324 bytes

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