Malicious PDF — malware analysis report

Static analysis result for SHA-256 94f6499400992d49…

MALICIOUS

PDF

73.6 KB Created: 2021-06-25 18:48:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: d7a4ce0fcbd37a7b90d86a0b41686b45 SHA-1: 2c1b9fd8cfb3d08c2e51306a7fdae63f23256705 SHA-256: 94f6499400992d499c4413b9bce003e03a329bf38948c7d1201625b74af66c68
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a link farm pointing to numerous URLs, many of which are hosted on compromised WordPress sites or disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of multiple PDF download links suggests an attempt to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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 http://mawaevents.com/uploads/file/bozarimajegodobuduj.pdf In PDF document text
    • http://tuhs1970.com/clients/a/ac/acc339db084e87cdfae31a76a6c96f1c/File/fewepokedixuwifupopuwir.pdfIn PDF document text
    • http://lavalnerina.it/userfiles/file/96433381283.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160790f366b8fb---21380357146.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1609f5b72686a9---94511193336.pdfIn PDF document text
    • http://staropolski.net/Upload/file/saxekatubetelaba.pdfIn PDF document text
    • http://pierrevillers.fr/mairie_files/file/21845617397.pdfIn PDF document text
    • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c563cbd2c58---birawijifiguboviwigogix.pdfIn PDF document text
    • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e5e071f35446c75dd60e75918f71bfc7/58138299875.pdfIn PDF document text
    • https://elitstroycraft.ru/source/file/lujudajamowamazekofukijub.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160ba31a62ba5f---ponuvajijovu.pdfIn PDF document text
    • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1609debfce4f47---furanofoboton.pdfIn PDF document text
    • https://agmatbaa.com/upload/files/mexetezox.pdfIn PDF document text
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/7a02822341a7ebd765f8977637228253/72176900294.pdfIn PDF document text
    • http://marketherballize.com/ckfinder/userfiles/files/xivipasuxupikelufironosi.pdfIn PDF document text
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099c92605e7c---ruxexuvosukalimowejipid.pdfIn PDF document text
    • https://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/37a0ba1dd6b44e5d787c7d6a0c70642e/monovirakoxuvipedelunebim.pdfIn PDF document text
    • http://cherriestattoo.com/ckfinder/userfiles/files/13284362716.pdfIn PDF document text
    • http://kopdesign.nl/userfiles/file/suzizatagodinajav.pdfIn PDF document text
    • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/47daa8784b8bae3f2124c9d1fc97496f/jokesabekofeborazebilaf.pdfIn PDF document text
    • https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/0d1635d45de8989637931cbffb5f150a/15130977003.pdfIn PDF document text
    • http://rjt1.org/upload/files/36493889510.pdfIn PDF document text
    • http://ahchala.com/img/file/dajobewifiraxesumunurexof.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=olympia+to+bremertonPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bce0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCE0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d4f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4F7 10524 bytes
SHA-256: 33fcc0d748e1563ef198dc20572f04c76225f09256b7b28e76b71d4eece58912
font_02_sfnt_off0000eca9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECA9 17076 bytes
SHA-256: 370cc5405ffe433f8fb4b4c26c5ced1e77f04c0f5f14cf0e2c6e847ed72ea4df

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