Malicious PDF — malware analysis report

Static analysis result for SHA-256 570553456c4c87ed…

MALICIOUS

PDF

48.2 KB Created: 2020-03-08 00:55:40 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 629be8715ecf7da25483be3183734326 SHA-1: 5f29925b7b9c53396dab75d89e515af35f734c15 SHA-256: 570553456c4c87ed450ef2999b3b860784e263ea93283c87bfb53262fdfc7226
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, a technique often used for SEO poisoning or to distribute further malicious content. The heuristic PDF_SEO_LINK_FARM specifically indicates this behavior, pointing to numerous PDF files hosted across various domains. No scripts were extracted, and the document body is heavily obfuscated, but the sheer volume of external links suggests a malicious intent to redirect users to potentially harmful content.

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.
  • 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://p3models.davidmichaeldesigns.com/uploads/1/3/0/5/130550715/130550715.html#sybr+safe+dna+gel+stain+in+1x+tae
    • http://adenta.bg/uploads/1/3/0/5/130542937/2800259.pdf
    • http://codesphere.org/uploads/1/3/0/6/130603728/wopisexino-jodipoxo-muxokotemip-gubofonojoje.pdf
    • http://utahbirthpros.com/uploads/1/3/0/7/130776629/ae2c607ae1bd351.pdf
    • http://digitalmei.com/uploads/1/3/0/7/130739056/a323c219ae37a70.pdf
    • http://www.therightspotconsignmentshop.com/uploads/1/3/0/3/130323585/vubepogamekabu-jojazobovomiluk-wodetele-gusezovesexeki.pdf
    • http://kpsmusik.com/uploads/1/3/0/6/130621048/nuwimojuwon.pdf
    • http://algomaci.org/uploads/1/3/0/7/130775046/c20776c778a4.pdf
    • http://ryanbelong.com/uploads/1/3/0/6/130604700/6299531.pdf
    • http://www.luxurybridalfurshop.com/uploads/1/3/0/6/130639658/daxewubime.pdf
    • http://languageofrecovery.us/uploads/1/3/0/4/130476432/8258046.pdf
    • http://mta-sts.restripeplus.com/uploads/1/3/0/2/130289756/8605283.pdf
    • http://www.thesoaperyshoppellc.com/uploads/1/3/0/9/130969340/18127f294b.pdf
    • http://nikkimichelleandthecosmiccollectivemusic.com/uploads/1/3/0/4/130483739/befofub-gofenabofevel-zoxidowasinugu.pdf
    • http://cyclebavaria.com/uploads/1/3/0/4/130489131/601e401cf9610.pdf
    • http://missfitonline.com/uploads/1/3/0/7/130739633/7398800.pdf
    • http://whateverwelding.com/uploads/1/3/0/8/130874652/wonifelemofuroleseb.pdf
    • http://5puntocero.net/uploads/1/3/0/2/130271114/dexog.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007be6.bin
93bb39b6748401a0d1fd17ee427ba2ad16be75465050d55fb0f481a9c3906a55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE6 9120 bytes
font_01_sfnt_off00009e61.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E61 16036 bytes

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