Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0a08f4b42464914…

MALICIOUS

PDF

36.9 KB Created: 2020-04-09 20:10:34 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: b642d1bc3cbc113fac8a386723eeaa5f SHA-1: faabe050ee56832799b71951b002c9a0e8525280 SHA-256: e0a08f4b4246491428c71cacfd934e3d9b4e8b3c8882763a2dec7b08e283576b
92 Risk Score

Malware Insights

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

This PDF document functions as a link farm, directing users to various external URLs under the guise of providing "apk whatsapp plus oficial". The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, many with numeric slugs, suggesting an attempt to manipulate search engine results or distribute a variety of potentially malicious payloads. The ML_NYX_PDF_MALICIOUS model also strongly flagged this file as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://rvacloset.com/uploads/1/3/1/6/131636828/131636828.html#apk+whatsapp+plus+oficial
    • http://firstchristianyouth.com/uploads/1/3/0/4/130478314/1332684.pdf
    • http://ezit.solutions/uploads/1/3/0/3/130313603/xifevunogek-budekofotote-roxirurepesum.pdf
    • http://riisenproductions.org/uploads/1/3/0/4/130435835/jujitixis-zewupop.pdf
    • http://kavahawkkennels.com/uploads/1/3/0/9/130969708/432643.pdf
    • http://totallyhipworkout.com/uploads/1/3/1/1/131164048/bf9eb7dbd4eec.pdf
    • http://fnmiec.ca/uploads/1/3/0/2/130289448/7ef9e6.pdf
    • http://sitescanada.ca/uploads/1/3/1/4/131407226/57ea57f749.pdf
    • http://girasolsunshinewellness.com/uploads/1/3/0/6/130603865/5d58b9862c.pdf
    • http://heytherevalerie.com/uploads/1/3/0/6/130604531/a4c59b48de12274.pdf
    • http://nannettetarot.com/uploads/1/3/0/3/130379430/6349118.pdf
    • http://thesuccessjourney.org/uploads/1/3/1/3/131378835/simepavu-famifawom-xujiwonakan-wezukuwarejaji.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_off000067c1.bin
d02a427e2100576885cc1a2aa9736f7e044e8d1e34b9cd1e8035979af96e70fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67C1 8088 bytes

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