Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e97a4230842f1a0…

MALICIOUS

PDF

77.0 KB Created: 2021-09-01 13:04:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 1055bb8db95d7e0205a84c6b526cd159 SHA-1: 06195c634edf007f7938cdf1ce5190f7427e2ff6 SHA-256: 1e97a4230842f1a089dea8ecbde8f1652a8ab9e66941f9cb45e0071e7976eeee
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The file contains embedded JavaScript and numerous URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting it functions as a link farm. The primary purpose appears to be directing users to potentially harmful external sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://cructi.ru/uplcv?utm_term=coming+to+america+2+critique PDF link annotation
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/mekgoh85vafo9loqc3ls7j08ks/22304913722.pdfIn PDF document text
    • https://gikguamerica.com/userfiles/file/kogekawaxep.pdfIn PDF document text
    • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/43d3016c24880c4b37d2ff0ce607de48/nalazavenitapifivudin.pdfIn PDF document text
    • https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/0inkicb172ddp2hl63kndsbjq6/38367643975.pdfIn PDF document text
    • http://staceyasp.com/UserFiles/file/87012056813.pdfIn PDF document text
    • http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607eacca4ad45---nopesavisaj.pdfIn PDF document text
    • https://ambientltg.com/wp-content/plugins/super-forms/uploads/php/files/d7832860082559eb741dced5db1c95ff/fevawiribujalofixur.pdfIn PDF document text
    • http://fournitures-reliure.com/prod_files/60485722084.pdfIn PDF document text
    • https://tomorrowhubs.com/upload/users/files/kurepeko.pdfIn PDF document text
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/49a33fe04bd1551e971be4459494ce45/82666398985.pdfIn PDF document text
    • https://eprobatdz.com/ckfinder/userfiles/files/mugokib.pdfIn PDF document text
    • http://toicodonlyson.com/uploads/files/16526546090.pdfIn PDF document text
    • https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/ae74350a56a17aaae0d515735a748903/baxokowu.pdfIn PDF document text
    • http://huntland.hu/upload/file/pakopunepegikobibazibos.pdfIn PDF document text
    • https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cfac9d62d1---84216488996.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/jl9pdjv40jbenoic36c6bbd6o3/fazerobuvapevezelavapo.pdfIn PDF document text
    • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/c97tjkpihicjilco0s3m9sfj82/kadalerekizinege.pdfIn PDF document text
    • http://gocreate.termall.pl/upload/fck/file/saxemadipop.pdfIn PDF document text
    • https://officialbacknumber.com/editor_up/65799056871.pdfIn PDF document text
    • https://seitonsolutions.com/ci/files/mofarepefimefizematuputit.pdfIn PDF document text
    • https://www.santaterezinha.com.br/js/ckfinder/userfiles/files/80550384195.pdfIn PDF document text
    • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073aedb648c1---31591205452.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c989.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC989 17188 bytes
SHA-256: febeb121b70f6bb0d2eb51977401e4c9b021d94e144962fe98aaadffdce52f02
font_01_sfnt_off0000f5ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5CA 10756 bytes
SHA-256: fb7535fd1f61b282fcab081cfc64c0df825228f4de5d1f3d644fc36b5bc1aefd
font_02_sfnt_off00010e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E52 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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