Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e6c341119ceb1cd…

MALICIOUS

PDF

83.1 KB Created: 2021-09-16 02:12:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: ce23e732b4e4825346fb15e02c1212be SHA-1: 39488ecf58c06a2321f4a6de5505d680df5180d4 SHA-256: 0e6c341119ceb1cd2292686cd9a3c1d1ad2c190a3b68b0e1bd1b334cb473b545
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document functions as a link farm, with numerous embedded URLs pointing to various websites, some of which are hosted on compromised or disposable domains. This pattern is often used to distribute phishing lures or redirect users to sites hosting malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 6

  • 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
  • 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://infrabud.eu/fckpliki/file/63408706593.pdf In PDF document text
    • http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/d4422c89aff8b59058047c800d37001c/50030896344.pdfIn PDF document text
    • http://vattucongtrinh.com/userfiles/file/bovamujebexusosivozutix.pdfIn PDF document text
    • https://jeevadhara.org/work/london/userfiles/file/38091066304.pdfIn PDF document text
    • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/aac58fbe68ed0bcf37f1b6beab2a717b/jupariwuzupibonezajum.pdfIn PDF document text
    • https://bepxuyenviet.com/upload/files/kofatevusepagavugo.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4674add4e---zotuwi.pdfIn PDF document text
    • http://z-him.ru/userfiles/file/48087517205.pdfIn PDF document text
    • http://shengyaweb.com/uploadfile/file/2021091417161990.pdfIn PDF document text
    • http://daugiavanthienphuoc.com/media/ftp/file/loluruzasurusanisirugu.pdfIn PDF document text
    • http://hak-al.com/resimler/files/77817658581.pdfIn PDF document text
    • http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1613e4dd04f166---befulobopik.pdfIn PDF document text
    • https://myphambambi.com/webroot/img/files/junotusavujuwiruresumut.pdfIn PDF document text
    • http://atanasijornet.net/uploads/ckfinder/files/pawevoteferatovonufof.pdfIn PDF document text
    • https://panificioilcavaliere.it/userfiles/files/59639026683.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/16135d170c682e---wexulikokokakarolumamunak.pdfIn PDF document text
    • https://www.studiorosaliabusco.it/ckfinder/userfiles/files/54335500786.pdfIn PDF document text
    • http://www.pvvc.cz/files/69352294908.pdfIn PDF document text
    • http://melissajacksonmd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613795509163c---49075178469.pdfIn PDF document text
    • http://lynxauto.ru/userfiles/file/27393288847.pdfIn PDF document text
    • http://xn--80aer5aza.xn----htbdepbihnfb8cyg.xn--p1ai/ckfinder/userfiles/files/98620398803.pdfIn PDF document text
    • http://lindseyderence.com/userfiles/files/38498931319.pdfIn PDF document text
    • https://amoslodge10-org.alljobsinliberia.com/ckfinder/userfiles/files/wapevelafunaxu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=vidmate+apk+download+2014PDF 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_off0000df74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF74 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f78b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF78B 10804 bytes
SHA-256: 470e5a7d1e17c6b11af6b2172a77785f1c36f75493e1ef9e8804fd924759e9c8
font_02_sfnt_off00011082.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11082 18080 bytes
SHA-256: ae26b06f3e62decf1f8ea131d0f81e11ce62efea03fa4fdb20ecabf6a39ddc6a

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