Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a453e6a365aaf7…

MALICIOUS

PDF

82.2 KB Created: 2021-09-16 05:09:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-10
MD5: 0a4953a20dec45742501c03eb99a9952 SHA-1: d3afbced162b5d781efe6ba35a83ecb1114b9169 SHA-256: 18a453e6a365aaf7e778dbb0a964e46246e214eeccd621df9755b8b2e9089516
151 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

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 advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/b7fada16ce4b6b0c0043d03627ef9bc6/datakowigudovojud.pdf In PDF document text
    • http://jinanxintiandi.com/userfiles/files/2830606348.pdfIn PDF document text
    • http://matchonusa.com/uploads/files/biluzot.pdfIn PDF document text
    • http://ngoinvest.com/uploads/ckfinder/files/vavurorijabe.pdfIn PDF document text
    • http://saktigroup.in/uploads/xewufalonefixe.pdfIn PDF document text
    • http://fizjoactiv.eu/Upload/file/50455799074.pdfIn PDF document text
    • https://mimpidia.com/contents/files/nimezetanefigido.pdfIn PDF document text
    • http://hferrynetworks.com/FileData/ckfinder/files/20210910_7C2FEC05A8BD188B.pdfIn PDF document text
    • http://freehajjandumrah.com/admin/admin/uploadfiles/file/3792232969.pdfIn PDF document text
    • http://sbs-group.co/userfiles/files/zakekafupojenovik.pdfIn PDF document text
    • http://www.me.ntou.edu.tw/ckfinder/userfiles/files/20210913_125246.pdfIn PDF document text
    • https://hoakhanh.vn/uploads/image/files/gugakavewametid.pdfIn PDF document text
    • http://www.medicellbank.com/userfiles/files/55661805087.pdfIn PDF document text
    • http://uptindia.com/newsimages/file///13265205414.pdfIn PDF document text
    • https://www.loscam.com/lib_common/ckeditor/ckfinder/userfiles/files/9819444244.pdfIn PDF document text
    • https://harteron.ee/userfiles/file/89393855742.pdfIn PDF document text
    • http://idolyokocho.com/js/ckfinder/userfiles/files/murimamip.pdfIn PDF document text
    • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/161365c4b28da1---93893178581.pdfIn PDF document text
    • http://careerpathrecruitment.com/swapscan/app/webroot/js/ckfinder/userfiles/files/gaziner.pdfIn PDF document text
    • http://technestudio.eu/userfiles/files/nerikitaxeja.pdfIn PDF document text
    • https://mkontakt.pl/dat/file/medojafezojuxifazoruvage.pdfIn PDF document text
    • http://ck-buhgalter.ru/userfiles/file/13678683420.pdfIn PDF document text
    • http://elosc.com/upFile/file///ITX202109031555015645.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=download+golden+ppssppPDF 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_off0000dd48.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000dd48.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD48 17944 bytes
SHA-256: 0b1da7449ff5495ef3345f4fe5334ce132c7c0b6da40642f4096422b9244c783
font_01_sfnt_off00010c11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C11 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12428 10364 bytes
SHA-256: 8a6d90381138da671eee2f95bb93f074153eeb871b368241e880ecf18e4772b8