Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8e44f8b19fb46a…

MALICIOUS

PDF

76.4 KB Created: 2021-09-20 18:50:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-07
MD5: bd5c5666073cfbfe786d09b82e8d9272 SHA-1: 1b2228221876a722c9266a89b5e02388ccca5798 SHA-256: aa8e44f8b19fb46aee0af8c0960b8bf5ae9803a05e312a77b88c26dc801af01d
196 Risk Score

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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://tarzminder.com/resimler/files/tipuveruzudozilubiteweb.pdf In PDF document text
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16131f4bf37305---94742031116.pdfIn PDF document text
    • http://vonschickenfremont.com/uploads/files/gapodat.pdfIn PDF document text
    • https://yar-net.ru/userfiles/file/dovetevipobi.pdfIn PDF document text
    • http://aburobocon2019.mnb.mn/uploads/files/74404378246.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/2e2782e8752b3181cf99e824e39eaf0f/76318901745.pdfIn PDF document text
    • http://euroteam.vn/ckfinder/userfiles/files/28618715986.pdfIn PDF document text
    • http://xn--12cbg9dihj7egda2g6a7dceb1d2cp4nvgf4f.com/datas/files/xoronivem.pdfIn PDF document text
    • http://unseretochter.ch/images/file/zeforuwilo.pdfIn PDF document text
    • http://mcserpenti.com/userfiles/file/lovabulukudunu.pdfIn PDF document text
    • https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/rigixukejat.pdfIn PDF document text
    • http://nuitsdartistes.eu/images/file/wabenivasadige.pdfIn PDF document text
    • https://lexcochoralsoc.org/demo/lccs/beta/userfiles/files/99942888229.pdfIn PDF document text
    • http://dogable.de/userfiles/file/65543188750.pdfIn PDF document text
    • https://lentes123.com/aym_image/files/jukodupuxavubotuzunevom.pdfIn PDF document text
    • http://weorderfood.com/uploads/files/xegovuzitagovidizevelis.pdfIn PDF document text
    • https://pixel.bg/img/file/69799063187.pdfIn PDF document text
    • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614401f6952e0---27301044999.pdfIn PDF document text
    • http://mbjarrahi.com/UploadedFiles/New/file/gadokovu.pdfIn PDF document text
    • http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd445174a5---dulaxezakajolike.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/161391eb361b53---31611396057.pdfIn PDF document text
    • https://technoarc.net/userfiles/file/kefuribagozedewokugut.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=sharpshooter+pubg+hack+keyPDF 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_off0000c53c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC53C 17444 bytes
SHA-256: 6334aa856c8e80be787833b62723d8965de4f9180e1f923cae3ab64e7212321b
font_01_sfnt_off0000f2c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010ad9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AD9 10932 bytes
SHA-256: f5f6895b164c37d08b1bc44f5598b9f308d20b762d604e7b8db3b60cbff46949