Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b082fd53a7bcbe…

MALICIOUS

PDF

143.6 KB Created: 2022-03-30 04:01:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 593f0913e5a7adfb0b2c9563e43fcc3f SHA-1: d790eaa641e95238a81f37beafa8274e2974940a SHA-256: a8b082fd53a7bcbe730d28dc555ad178bf680135fc913b46c11fad71b1e51f47
224 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9516

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://sunuf.co.za/XSRYdR1H?utm_term=mai+aarti+teri+gau+o+keshav+kunj+bihari+mp3+free+download PDF link annotation
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/4628239.pdfIn PDF document text
    • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621029181acf6---fusajijuzavukufade.pdfIn PDF document text
    • https://3eyamaichi.com/upload/ckfinder_temp/files/20220209152015.pdfIn PDF document text
    • http://tomekorea.com/userData/board/file/ridaximodedojuwumawige.pdfIn PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161fc863098582---lisifawinusuripepunejidon.pdfIn PDF document text
    • http://ranchobg.com/img/file/29798954338.pdfIn PDF document text
    • http://indel.sk/userfiles/file/60014935281.pdfIn PDF document text
    • https://xikixunajaxata.weebly.com/uploads/1/3/5/9/135959014/zabekurulorikodaw.pdfIn PDF document text
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/162059ebdb9e85---filepuf.pdfIn PDF document text
    • http://boldogelet.hu/media/zomomafilubupatonufafim.pdfIn PDF document text
    • https://suveruwifofe.weebly.com/uploads/1/3/1/3/131380558/493459768404a.pdfIn PDF document text
    • https://pozosukezogi.weebly.com/uploads/1/3/4/3/134386022/xivukalovizo_widizos.pdfIn PDF document text
    • http://hotechike.com/files/files/2595980528.pdfIn PDF document text
    • http://hayfidan.com/admin/kcfinder/upload/files/pusekilevon.pdfIn PDF document text
    • http://www.socfertenviron.org/cmsfile/contentfiles/popewunisotuvuvaloguj.pdfIn PDF document text
    • https://nodazijokavi.weebly.com/uploads/1/3/4/3/134315007/871c9c6bf3ea235.pdfIn PDF document text
    • https://lobogisotu.weebly.com/uploads/1/3/4/8/134870795/fukomapozanowem.pdfIn PDF document text
    • http://rediger.vammenkro.dk/upload/files/vanomol.pdfIn PDF document text
    • https://dpmptsp.pemkomedan.go.id/dpmptspwebaplikasi/libraries/ckeditor/kcfinder/upload/files/85459380022.pdfIn PDF document text
    • https://www.yukule.com/ToBeDeleted/admin-assets/js/ckeditor_4.6.2_standard/kcfinder/upload/files/fepexuvufizubunomaruji.pdfIn PDF document text
    • https://rezukozivir.weebly.com/uploads/1/3/4/6/134631959/toxoto.pdfIn PDF document text
    • http://lifeisartfoundation.org/sites/default/files/images/userfiles/file/66331843857.pdfIn PDF document text
    • https://rawitexebava.weebly.com/uploads/1/3/4/4/134487877/kepipusesubej_famixijodij_kugili.pdfIn PDF document text
    • http://jodhpurheritagewalk.com/images/file/47831865137.pdfIn PDF document text
    • http://mskabel.cz/UserFiles/File/88682933693.pdfIn PDF document text
    • https://rubenferro.com/userfiles/file/wapodotavilokejezotube.pdfIn PDF document text
    • https://xedafiwiwez.weebly.com/uploads/1/3/2/3/132302754/2248542.pdfIn PDF document text
    • http://chipmax.in/chipmax/ckfinder/userfiles/files/ziraxoxugegiz.pdfIn PDF document text
    • https://miwawedunosojoz.weebly.com/uploads/1/3/1/6/131606480/dizadabigu.pdfIn PDF document text
    • http://lukasikgroup.pl/Image/files/bumorujeparotadopo.pdfIn PDF document text
    • http://www.comhairleuladh.com/uploads/files/witiduguvaximiregopirofox.pdfIn PDF document text
    • https://mojisavavuke.weebly.com/uploads/1/3/5/3/135312470/9328746.pdfIn PDF document text
    • https://lerangement.com/upload/editor/file/65925351295.pdfIn PDF document text
    • http://brcassociati.com/userfiles/files/zuwota.pdfIn PDF document text
    • http://rileyillustration.com/images/agency/files/35364930450.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 extracted file (font_00_sfnt_off0001cfdd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001cfdd.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001cfdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CFDD 17208 bytes
SHA-256: 3f7b579195dfd1d3c0131eb1ec828e62fbb6d17e145b29c33f22fbf8b0c36010
font_01_sfnt_off0001fd11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FD11 11724 bytes
SHA-256: 3ae8611d25825391493861b350b3ac91314e3343c26e03926b0910fc36cd9b66
font_02_sfnt_off00021887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21887 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9