Malicious PDF — malware analysis report

Static analysis result for SHA-256 e619ae81382f21bd…

MALICIOUS

PDF

104.6 KB Created: 2021-07-01 23:37:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: cb07e449154d3219cbfd43a7a77b45e7 SHA-1: c2bef48fe81a1b4edd46fa9ca872bde53af19fb2 SHA-256: e619ae81382f21bd13cc25c7ff8e616e05b77953d451360c1fa78c2cdff606b0
164 Risk Score

Malware Insights

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

The PDF contains numerous links to compromised websites and a deceptive download button, indicating an attempt to trick users into downloading malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9747

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://smidgel.ru/uplcv?utm_term=mr+bombastic+meaning PDF link annotation
    • https://eghamatyab.com/basefile/bainbookcom/files/deratosifobeduwomipinipo.pdfIn PDF document text
    • https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/26ggg4gq0brsfcbeb42ig95rbj/fawapifarujelogakukizozel.pdfIn PDF document text
    • https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/e6c62f552088ed8c424c4b22b83b9d8c/fakududejafejokomuwonit.pdfIn PDF document text
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160990f35c4de3---97754617378.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ccef51d383---zojadumivibozotira.pdfIn PDF document text
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/jkmi0182lhu49ikh03vo8h64vt/muwuv.pdfIn PDF document text
    • http://rzn-house.ru/upload/file/febovidolapakul.pdfIn PDF document text
    • http://eraucheta.ru/uploads/file/wuminerafexekabowes.pdfIn PDF document text
    • https://pluviaterra.mx/wp-content/plugins/super-forms/uploads/php/files/d46ec6f1b85a6432fd4ba7a730c85818/42727342645.pdfIn PDF document text
    • https://www.adelaarenergy.com/wp-content/plugins/super-forms/uploads/php/files/s11fmvpjhiabcf1akvhvl957dj/75579620542.pdfIn PDF document text
    • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c364abebb3---tedenuvepewu.pdfIn PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/5af25793565650ec681e20678a4e1a4a/40021544336.pdfIn PDF document text
    • https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/489e2fe6da07e99c02daf578bc718a8d/navitefipopeguwude.pdfIn PDF document text
    • https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/45fa8af31238ef5cf9e700cba2d6017e/50511071578.pdfIn PDF document text
    • http://audiencefertilization.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/wovagosotod.pdfIn PDF document text
    • http://sunrui-ti.com/d/files/nifolawilijavagudotagixeb.pdfIn PDF document text
    • http://thecoferfamily.com/clients/7/78/7892d776c92a08c80f86ebc6236678d2/File/fanumovexabiku.pdfIn PDF document text
    • https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/7c2d6516070de775cb01dc274363f871/juwidag.pdfIn PDF document text
    • https://subarini.ro/mm/file/53095540702.pdfIn PDF document text
    • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160882354c51f7---38858676083.pdfIn PDF document text
    • http://fence-alarm.com/userfiles/files/tesovekivalazixidakaxosuk.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086a6421b1d6---19751879239.pdfIn PDF document text
    • http://www.lugashotel.com/data/editorfile/keduwefabape.pdfIn PDF document text
    • https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a403ef81f78---19147255400.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16092665fa7371---79092132608.pdfIn PDF document text
    • 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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F9A 18024 bytes
SHA-256: 2daa0807c0b0800bf20c530d810715cb203438b0c563d7209da705c4f9aef30a
font_01_sfnt_off00013f24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F24 2588 bytes
SHA-256: 5c6f5b08e65756b2f0064cab1dc064e3bf6f841c75d29ad41e23192d7e4f908a
font_02_sfnt_off00014a37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A37 17112 bytes
SHA-256: 8cdeefd85ddf35eae9b604fc7f86389b895893f677d575cfd4fe57f2f7f99722
font_03_sfnt_off0001638c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1638C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_04_sfnt_off00017ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17BA3 10660 bytes
SHA-256: bff5bcad5ac1b654cce4b89c6034ccf05e9657db22c561d767c7468edd908b75

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