Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9c9b92f2d891f1f…

MALICIOUS

PDF

79.3 KB Created: 2022-04-01 09:56:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 70b76b51ac9d9f9b2e1cc9ed183356a0 SHA-1: 75e085ac7ba05ce45f854b744df75be348ea7882 SHA-256: a9c9b92f2d891f1f7597dee379c3b07cf1156e044d180a0a992d47ccdadf7b8f
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://westpakusa.com/phpsites/vertical_living/uploads/file/xuzomurazewenitujo.pdf In PDF document text
    • https://nslogisticservice.com/userfiles/files/xuluxifudojujetipi.pdfIn PDF document text
    • http://azs-szermierka.pl/zdjecia/fck/file/diwebozewasixarabaga.pdfIn PDF document text
    • https://cdmsig2.com/ckfinder/userfiles/files/12430079702.pdfIn PDF document text
    • https://readandenjoy.ae/userfiles/files/vovopufoxepejupuzomazu.pdfIn PDF document text
    • http://residencecarlofelice.com/userfiles/files/78099869819.pdfIn PDF document text
    • https://fukokegoxa.weebly.com/uploads/1/3/4/4/134463136/filivulegas.pdfIn PDF document text
    • https://smartcrm.cloud/upload/files/wuneti.pdfIn PDF document text
    • https://euforbiabulgaria.com/uploads/pages/files/67218203929.pdfIn PDF document text
    • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/16242b8d4178ca---rinilazibesefutiwelurusi.pdfIn PDF document text
    • https://gimitowogavu.weebly.com/uploads/1/3/4/7/134746983/eb2f2f03ae83fa.pdfIn PDF document text
    • https://xilizotuxepaxi.weebly.com/uploads/1/3/4/3/134309236/493bdafb2fd23.pdfIn PDF document text
    • http://emeraldcovepartners.com/_data/images/file/3950196192.pdfIn PDF document text
    • http://emachn.com/data/attachment/file/dogotigubesowunadobe.pdfIn PDF document text
    • http://umbabox.com/userfiles/file/17072399666.pdfIn PDF document text
    • https://jadajamajive.weebly.com/uploads/1/3/4/7/134770809/zafewuwaxisiwo_xigolewaj_tilokas_xufiwef.pdfIn PDF document text
    • https://gujowidupisume.weebly.com/uploads/1/3/4/1/134131448/9a4531bc.pdfIn PDF document text
    • https://kizilezena.weebly.com/uploads/1/3/4/3/134354573/bukuzoga_kupoxurugus_liretod_demizupogime.pdfIn PDF document text
    • https://fozokixudaxo.weebly.com/uploads/1/3/4/3/134355354/lofomurixibaxal_rapit_puzoxa_wuxibunanaluzap.pdfIn PDF document text
    • https://puvomowaja.weebly.com/uploads/1/3/4/3/134318832/45d1a3.pdfIn PDF document text
    • https://yubit.co.za/YmrXLWy8?keyword=dewalt%20dw708%20instruction%20manualPDF 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 extracted file (font_00_sfnt_off0000d05f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d05f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d05f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD05F 17048 bytes
SHA-256: ab8c3c3665158f383cd2359f23ab54ec371cb53f2d936eb47980c0f9bca8ba21
font_01_sfnt_off0000fcb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCB6 11100 bytes
SHA-256: 127522eaf04c6035c6e1b8d84eea763c5355b57f72cab62c5b3bddff64cd6d7b
font_02_sfnt_off000116b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116B9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1