Malicious PDF — malware analysis report

Static analysis result for SHA-256 48b39f2ce85fac3e…

MALICIOUS

PDF

160.6 KB Created: 2021-07-07 01:07:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 8b9cd88f4aa4dd9da1959db435a5b6a0 SHA-1: 4aca2d2e55d0d636d6482793126503425155bc85 SHA-256: 48b39f2ce85fac3ec18e72b1163ff63092280b9b899d16247ebcbde494f5c537
154 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a link farm pointing to numerous distinct hosts, many of which appear to be compromised CMS uploads. The primary purpose seems to be directing users to potentially malicious or phishing websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7970

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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 https://samsungdvm.net/upload/ckfinder/files/62004844960.pdf
    • http://maskaevlawyer.ru/userfiles/file/buronurelibos.pdf
    • https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/gl1l9ik6bp1de1bas7j4ov97o6/kobibijaxerusupoko.pdf
    • https://al-farh-iq.com/upload/userfiles/file/26433833125.pdf
    • https://absolut-fit-and-dance.de/wp-content/plugins/super-forms/uploads/php/files/o5pa3ars3up8mj629qfm5fkpg6/58697913617.pdf
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/160823b6d6171c---samatotafepatezel.pdf
    • http://zovsh.com/Uploadfiles/files/4827451787.pdf
    • https://drrajanmahtani.com/userfiles/files/falasep.pdf
    • https://aashianarealty.com/file/falajerad.pdf
    • http://ahcxdq.com/uploads/file/272256246498.pdf
    • http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ba6722ad824---zulefekejunixage.pdf
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075502ae86f3---90880354481.pdf
    • http://mobilni-kadernictvi.cz/files/file/mosakejunana.pdf
    • https://fietenhaardenenkachels.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c449f3e8cdc---7109318275.pdf
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081de1db9393---sarodabulusajademusamuvi.pdf
    • https://clubslotalmatriche.com/calcas/file/xovevisir.pdf
    • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/bdc10c06f495361931524001f4020492/pawawusewove.pdf
    • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/160948f4f50d02---78288140577.pdf
    • https://criteriacambio.com.br/wp-content/plugins/super-forms/uploads/php/files/c06g77efqovf5nnute2rd4p3es/nimajubib.pdf
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4847facbd5---53858737923.pdf
    • https://lawina-radom.pl/files/file/86452629700.pdf
    • https://nexusmediation.nl/files/lerosuzeminapugim.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=trade+test+certificate+electrical
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d05.bin
a409411a3108fec8f4efdb25f2bcfb9ac833b90f70b1d819017fb2c462f9b6af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10D05 10208 bytes
font_01_sfnt_off000123fd.bin
d775b94041237bc696af5988dbe98bd1b53cecdff2713e91af246aec8c409f15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x123FD 16892 bytes
font_02_sfnt_off00014fd2.bin
0fd8cbab9f7ebc1db8a36d83149b06ca2a223a08048d8c2a8d47ec1489ca9246		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14FD2 124360 bytes

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