Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cab6887d172e44…

MALICIOUS

PDF

87.5 KB Created: 2022-04-24 09:42:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: 2a549366feea065fcbf6895b3f54bbe7 SHA-1: dd00ff52fcddd154c5c37e0cd151ebc7c750c621 SHA-256: a9cab6887d172e44ebda9f4ff096f305c8a62c29aea531520c99348fcdb8b83a
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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.
  • 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/YmrXLWy8?keyword=captain%20underpants%20show%20cast PDF link annotation
    • http://www.fairvalesecondary.co.za/kcfinder/upload/files/fedasob.pdfIn PDF document text
    • http://www.propper-droppers.nl/files/file/tugutolekejuzeguvufufov.pdfIn PDF document text
    • https://namavikevak.weebly.com/uploads/1/3/2/7/132740743/devuri.pdfIn PDF document text
    • https://zefubolinela.weebly.com/uploads/1/3/4/3/134318842/buvejik_beloborugukev_fapalulavob_zisodagirir.pdfIn PDF document text
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/e2a835cbcf9341a2c27bc2a7c0bb7a06/keved.pdfIn PDF document text
    • https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/f926a6c72408f1a73abc561ee1bf3f81/28693294445.pdfIn PDF document text
    • http://atolyemtm.com/depo/sayfaresim/file/83039211933.pdfIn PDF document text
    • https://ludutaxe.weebly.com/uploads/1/3/0/8/130814402/1463903.pdfIn PDF document text
    • https://faruxolumapegi.weebly.com/uploads/1/3/5/3/135341403/xawamubarafuw_sadowixarapubib_jafex.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/162541efba7bda---40504517239.pdfIn PDF document text
    • https://bongkartuantakur.com/contents/files/dikofatilij.pdfIn PDF document text
    • https://pokatufazopaler.weebly.com/uploads/1/4/1/3/141315658/05445c1d27fdeee.pdfIn PDF document text
    • http://phongbepfagor.com/userfiles/file/godarelomoditajotuw.pdfIn PDF document text
    • https://jodisugej.weebly.com/uploads/1/3/4/7/134732418/bd66d7.pdfIn PDF document text
    • http://immodraft.de/images/architekten_agentur_images_/file/dipunisiwavugovagopuvur.pdfIn PDF document text
    • https://watogoja.weebly.com/uploads/1/4/1/2/141259928/97bb802.pdfIn PDF document text
    • https://wufunuxiropid.weebly.com/uploads/1/3/2/7/132712508/musiz_lizanazu_ranudojamogamuf_gijizafinolim.pdfIn PDF document text
    • https://kiriwalukejogof.weebly.com/uploads/1/3/4/3/134310578/pavefobutarekepizun.pdfIn PDF document text
    • http://vita24h.com/uploads/userfiles/file/mafepulipepimalog.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_off0000f056.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000f056.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF056 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010868.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10868 17668 bytes
SHA-256: cc5f50287859649d93cee3791c674b330e31692c51987810d41a7ba849b83455
font_02_sfnt_off000136c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136C9 10780 bytes
SHA-256: 7918fb0a63b06c30f19fdf85d1f7d9bc395b35b36fb177f8717b5fe36097dc49