Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7b7109ee560c581…

MALICIOUS

PDF

37.1 KB Created: 2020-04-01 15:19:51 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 27620f6601e03bd6f30a760b82019802 SHA-1: f7aa4e35c409577ffc34fbfe25d8f9d5ea072892 SHA-256: e7b7109ee560c581c0c625e30b887781e1c6b19f68fc52d792bf7c1d298fa93e
72 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO poisoning or to distribute further malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a likely attempt to direct users to malicious sites. The presence of a 'download button' lure further supports the malicious intent.

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.
  • 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://sixtarubio.com/uploads/1/3/1/1/131164152/131164152.html#larousse+gastronomique+recipe+collection+pdf
    • http://laberiafc.com/uploads/1/3/0/6/130604903/1407708.pdf
    • http://macoexpressinc.com/uploads/1/3/1/3/131379255/42dde2.pdf
    • http://turningheadsdesign.com/uploads/1/3/0/6/130621084/jalavatutijas.pdf
    • http://dragoonitcn.net/uploads/1/3/1/3/131381052/6569f.pdf
    • http://starbabyknit.com/uploads/1/3/0/4/130436108/davegapidezop_xilarakafa_xiveniguz_bonupi.pdf
    • http://acsnutritionfitness.com/uploads/1/3/0/8/130874109/aae841.pdf
    • http://pureelegancesalonandtattoo.com/uploads/1/3/0/4/130483498/5221353.pdf
    • http://kampuslandinc.com/uploads/1/3/0/4/130477090/1249cc769.pdf
    • http://gardenglassetc.com/uploads/1/3/0/8/130814856/1c6bffb42.pdf
    • http://jazzycolor.studio/uploads/1/3/1/3/131382790/c8172b394b970.pdf
    • http://karimunjawaboatrental.com/uploads/1/3/0/7/130776687/moxamisebago.pdf
    • http://vuwwib.com/uploads/1/3/0/6/130604984/4890803.pdf
    • http://reneeedwards.ca/uploads/1/3/0/5/130543539/2098928.pdf
    • http://stocktontljsoccer.com/uploads/1/3/0/8/130874224/7d7efc332.pdf
    • http://carsonnissanblog.com/uploads/1/3/0/5/130543682/mirasixipiromaridot.pdf
    • http://universallawncare.org/uploads/1/3/0/6/130639983/892eb006.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006873.bin
f278e042b1e914d5aea1e2535aa1377e70d8a886339352308ab9be14fe5195bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6873 8192 bytes

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