Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8319a93e3e00261…

MALICIOUS

PDF

47.6 KB Created: 2020-05-04 11:56:45 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: d5b30f8539f21cf4886bfb5a19bff419 SHA-1: 02d11b16ad1f39ebf77c676c2df01a9e16b6e3bc SHA-256: e8319a93e3e002610a229cd8d3603d4956720d1171398afb4f8405ceac6469d2
94 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are dynamically generated and point to various domains, indicating a link farm or SEO poisoning tactic. The document body, though heavily obfuscated, contains text related to 'Cacfp eligibility form 2018', suggesting a lure to trick users into accessing potentially malicious content. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://jmitchellhomesllc.org/uploads/1/3/0/4/130476050/130476050.html#cacfp+eligibility+form+2018
    • http://realatize.com/uploads/1/3/0/2/130291786/wejop_monajeneb_nipudoxupized_pukapufasekiza.pdf
    • http://middlegapowerhouse.com/uploads/1/3/0/9/130969529/730163af4.pdf
    • http://afcyberworx.com/uploads/1/3/0/9/130969279/190f01a938.pdf
    • http://kiranskandles.com/uploads/1/3/0/3/130313228/gerenidu-sisuwi-morax-mowetaveluvif.pdf
    • http://soundofmusicsenseofart.com/uploads/1/3/1/0/131070979/336441.pdf
    • http://aboutship.org/uploads/1/3/0/7/130739381/bc9749866a352.pdf
    • http://happyhome.cleaning/uploads/1/3/1/8/131872153/rusipokogisemaw_zenowa_mewalesor_wilukolid.pdf
    • http://ekaterinahart.com/uploads/1/3/0/6/130603936/58c8d657.pdf
    • http://tvtupperware.com/uploads/1/3/0/8/130814441/mukaremol.pdf
    • http://juliecohnart.com/uploads/1/3/1/3/131380759/dewej.pdf
    • http://subterraneancoffeeboutique.com/uploads/1/3/0/6/130621584/bubusitu_bofowupodipo_gomamolebopi.pdf
    • http://messagefromralph.com/uploads/1/3/1/4/131437091/sibunifam_nizufugutuf_gaxefidaxif_rozupuzax.pdf
    • http://restaurantbellacolombia.com/uploads/1/3/0/6/130639085/8913852.pdf
    • http://awitheritephotography.com/uploads/1/3/0/6/130620923/1b620ce.pdf
    • http://ruralvapes.com/uploads/1/3/1/3/131384765/2101051.pdf
    • http://homesharepartners.org/uploads/1/3/0/2/130291545/6454bd48c2037.pdf
    • http://dtailspetboutiquespa.com/uploads/1/3/0/4/130489001/6154990.pdf
    • http://whippoorwillfarmcsa.com/uploads/1/3/1/3/131384128/5391340.pdf
    • http://beets.mx/uploads/1/3/0/7/130738628/4544575.pdf
    • http://juliecohnart.com
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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_off00008dff.bin
cf278fe4bc8877aa6c26c02b1c5966feab86293a1ee31c6dd31f6b3ba334572a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DFF 10572 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.