Malicious PDF — malware analysis report

Static analysis result for SHA-256 08a48c9db7f6e8bf…

MALICIOUS

PDF

68.1 KB Created: 2021-05-07 00:36:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02e544b2da7a4d9bc36cbc7610bc1ae1 SHA-1: f7e889b032524104f5b0fd1ac710cb7ffbb9c21b SHA-256: 08a48c9db7f6e8bf86e395d4177fd428c0910734feb63d38bc44b5a4fb16f8d8
154 Risk Score

Malware Insights

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

The PDF file was identified as malicious by multiple heuristics and a machine learning classifier, with ClamAV detecting it as a phishing trojan. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites that host further malicious PDF files. This indicates an attempt to lure users to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9441

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://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1608316c94331f---60259390628.pdf
    • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/fgbgnkefvqah1qu9opd4llj7eg/jaxupomexigofexir.pdf
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c38908e0e---welujubimepekinemisoda.pdf
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160731486bd820---fejot.pdf
    • https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3f243fdb9---68020482570.pdf
    • https://xn----7sbbjg7ctfs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/130ef752b2e29e145546ec83dbf352d7/gedexok.pdf
    • https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/72cde9ed8dafb9c188ef474859511911/jefiwejanemujujagaleladu.pdf
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16070709e28495---60090728391.pdf
    • http://wypelnienia.kratex.pl/wp-content/plugins/super-forms/uploads/php/files/9a0c0a8093e88a37e415686b64f79436/togezevaxidulirasekazix.pdf
    • http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c94febfe50---dibipewinanexod.pdf
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/9b73325cb8641594094417a1fcd3ef60/69536936893.pdf
    • https://expungemyrecordnj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607669488b191---14165361799.pdf
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf265318b2---sobaf.pdf
    • http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c54a283f6d---panekufere.pdf
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f72ad2df9f---boxaz.pdf
    • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/c03d28af2be2a7a102c027d315f2557d/27699248065.pdf
    • http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4c3c822b5---55485261106.pdf
    • https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/19fd905022c672b6ab0fd2b110ab714c/mewujese.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=asuran+movie+mass+bgm+free
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5a6.bin
127b44c9f93874c96d25eb7ddc4688780d8877ce931cf296363fb5748d8d514b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD5A6 6744 bytes
font_01_sfnt_off0000e68d.bin
277517bd39babf246291e24aa10d62217994907d5325e9e111df34b497077460		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE68D 5048 bytes

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