Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b612e28ddef636a…

MALICIOUS

PDF

55.4 KB Created: 2020-04-01 12:57:59 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8caa5bca38daaa050eaeb773d5103d3c SHA-1: b9df82c18012310338abdc251336b814b70eab57 SHA-256: 4b612e28ddef636aa5e2a055196c0ce6ac7a022bf6e90e568912007615aeec57
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting an attempt to manipulate search engine results or redirect users to potentially malicious content. No scripts were extracted from this sample, and the document body is heavily obfuscated, making it difficult to determine a more specific attack pattern beyond link farming.

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://esperanzamassagetherapy.com/uploads/1/3/0/8/130873951/130873951.html#placas+tectonicas+definicion+geografia
    • http://openmeadowfarms.com/uploads/1/3/0/4/130477719/zogeke_sijob_lajirataxan_bumukiluvesevof.pdf
    • http://buffaloveteranstories.com/uploads/1/3/0/2/130288962/fiwexajolode.pdf
    • http://brookeholden.com/uploads/1/3/0/2/130288861/pedovuwo_xugivewatide_xidekones_kafam.pdf
    • http://corporateworlddropouts.com/uploads/1/3/0/9/130969459/komizutatezopexuwud.pdf
    • http://mahlidesignsri.com/uploads/1/3/1/3/131380354/limesarajuvidev.pdf
    • http://chefth3rd.com/uploads/1/3/1/1/131163890/311a8dbb1.pdf
    • http://michellezeissphotography.com/uploads/1/3/1/3/131381352/kusixasinumokoliwi.pdf
    • http://christthevictor.org/uploads/1/3/0/3/130323454/7695521.pdf
    • http://lacocinademamalococinaparati.com/uploads/1/3/0/5/130540214/2c6c140ce87b52f.pdf
    • http://swanimprovements.com/uploads/1/3/0/6/130620337/1708829.pdf
    • http://erinsauer.com/uploads/1/3/0/7/130775199/2fed1c6958f.pdf
    • http://sculpchamp.com/uploads/1/3/0/7/130739910/de661f0bb30.pdf
    • http://designsonlife.studio/uploads/1/3/0/6/130639544/7894997.pdf
    • http://mundfordconnect.com/uploads/1/3/1/4/131438379/491dba6144.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_off00008ac9.bin
b282f7aea922aef715e2ae000174a19deade7b8293384e2422f7b403447ba4a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC9 9048 bytes
font_01_sfnt_off0000abb7.bin
70e46c549aaf1069c3ebbfabc47a24de08ff3e9d6766d9973ca80d75f198e7e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABB7 4016 bytes
font_02_sfnt_off0000b93c.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB93C 16036 bytes

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