Malicious PDF — malware analysis report

Static analysis result for SHA-256 abe3e5bd002e48d5…

MALICIOUS

PDF

84.8 KB Created: 2021-09-01 03:29:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: bd1d12d30f840578411fada3a165e3e4 SHA-1: d0fb79bd6e505b44be2c26379e23d4e78f29f783 SHA-256: abe3e5bd002e48d5f7e52cb51e290f343b57f8ffefdce128f3580343e490c1b4
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting. These links likely lead to phishing pages or further malware downloads, as suggested by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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 https://jollytime.ru/wp-content/plugins/super-forms/uploads/php/files/24efc52240c33001aeedb600cf6ddb38/5204143878.pdf In PDF document text
    • https://pima-alarms.net/slicice/file/tufenepokupiwasa.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bddc5eb038---68681113513.pdfIn PDF document text
    • http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/16097f25b911bb---6424087821.pdfIn PDF document text
    • http://xn--tnqz8hz5cb8l.com/upload/files/13879962.pdfIn PDF document text
    • http://dafangtour.com/fckeditor/userimages/file/41384530411.pdfIn PDF document text
    • https://kuzeyilac.com/resimler/files/37227857400.pdfIn PDF document text
    • http://fantasymusic.it/userfiles/files/33358985954.pdfIn PDF document text
    • http://we2meeting.com/ckfinder/userfiles/publics/files/zipoxumoxabo.pdfIn PDF document text
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/4f2880d60279d472c2fe161063fe81d7/sodir.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c0b11d79774---dalorasorusitalujefikiwi.pdfIn PDF document text
    • http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/16086ca6b33bd4---81316035510.pdfIn PDF document text
    • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608838d760344---96434927377.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160fd7d86d2ccd---ganibotazavixisumu.pdfIn PDF document text
    • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9fb0de9599---vodaliwusesogit.pdfIn PDF document text
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/f74b942a415b956c97b49e7b7ca4d6f9/debuwonegeliwipataraga.pdfIn PDF document text
    • https://clic-essc.ch/ck/ckfinder/userfiles/files/93826980912.pdfIn PDF document text
    • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/ot227qcrh2krmjeam8igonfkip/walosufazorepupolojavu.pdfIn PDF document text
    • https://cancelaria.pl/galeria/file/19125703265.pdfIn PDF document text
    • http://dioceseofniranam.org/userfiles/file/45404155873.pdfIn PDF document text
    • http://dbcasagayathottam.org/assets/uploads/cms_images/files/jubeberozofegudurem.pdfIn PDF document text
    • https://bleikss.com/userfiles/file/pinagubobusogu.pdfIn PDF document text
    • http://cnokorea.com/userfiles/file/pivosumikoluwukejuxuri.pdfIn PDF document text
    • http://abacusnancy.com/userfiles/file/33198319223.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=painful+lump+in+upper+arm+musclePDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D3 17156 bytes
SHA-256: 00d5e99e9d368fee5ebdbb64540b049d4b80a1f8ddf5c3d841efac829eb73869
font_01_sfnt_off000112fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x112FC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012b13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B13 10524 bytes
SHA-256: bfceeffde885f4b8af7f456dbb6107bbe9c0ee545725058299e9ba752a28aa95

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