Malicious PDF — malware analysis report

Static analysis result for SHA-256 2241ab56393b8433…

MALICIOUS

PDF

50.3 KB Created: 2022-06-23 22:05:45 +03:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 5.15.4) First seen: 2026-04-22
MD5: f9c2dd6c2e3811f0dcee8f5e5cbe1dac SHA-1: ad1a0c8bb304908e4389817a48351fdc68a916d8 SHA-256: 2241ab56393b84334c291d7bba704c984eb4ebf6c79ce516b96b8b397f44cb4b
86 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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://lazav.co.za/YmrXLWy8?keyword=first%20marriage%20certificate%20form%20telangana%20telugu%20pdf%20download%20pdf%20file%202017 PDF link annotation
    • https://www.bakkersvlaanderen.be/resources/plugins/ckfinder/userfiles/0/files/28980592751.pdfIn PDF document text
    • https://libyamonitor.com/sites/all/libraries/ckfinder/userfiles/files/66563259984.pdfIn PDF document text
    • http://interiorconsignments.com/media/file/vufapukekid.pdfIn PDF document text
    • https://myparrotfood.com/user_files/files/93793355569.pdfIn PDF document text
    • http://ahcxdq.com/uploads/file/291419594412.pdfIn PDF document text
    • http://chistogood.ru/admin/ckfinder/userfiles/files/62749087794.pdfIn PDF document text
    • http://vipdiler.ru/files/file/81179376812.pdfIn PDF document text
    • https://vmwarts.com/ecovic/file/8111335790.pdfIn PDF document text
    • https://sitikubexema.weebly.com/uploads/1/4/1/3/141363554/95813.pdfIn PDF document text
    • http://futuralagoparking.eu/userfiles/files/lirup.pdfIn PDF document text
    • http://hyunbulsa.org/~ewedd2/userfiles/file/83381836617.pdfIn PDF document text
    • http://zvezda-rostov.ru/ckfinder/userfiles/files/38182736359.pdfIn PDF document text
    • https://panoramabyty.cz/content/worozenusaf.pdfIn PDF document text
    • http://condosworld.com/abisol1/userfiles/files/12759089535.pdfIn PDF document text
    • http://csc0451.com/userfiles/file/20220612055643_8uzdfb.pdfIn PDF document text
    • http://studiophotosfashion.it/userfiles/files/wabivegorilekawaj.pdfIn PDF document text
    • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/162291297bc626---kilomerefavonivu.pdfIn PDF document text
    • https://energyexcess.com/userfiles/file/50757317412.pdfIn PDF document text
    • https://inprovitparaguay.com/ckfinder/userfiles/files/barokikezonogoreb.pdfIn PDF document text
    • https://tusilagel.weebly.com/uploads/1/3/0/7/130739454/6643083.pdfIn PDF document text
    • http://www.bitstream.comIn extracted file (font_00_sfnt_off00004a75.bin)
    • 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_03_sfnt_off0000a28d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_03_sfnt_off0000a28d.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A75 8856 bytes
SHA-256: 44c8af1385b163023526d0c5a4425e44828f10cb29aa1f39a301671e07e3757a
font_01_sfnt_off00005ef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EF1 15688 bytes
SHA-256: dac9664d5bc233825b63c00430c3d2d67ab6010d3e6f0903b2aeaa0af35406e1
font_02_sfnt_off00008879.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8879 10556 bytes
SHA-256: de1ae580742f41f316a7b3cc74a9421fa28dac38b32985ceb4fd3ae0996be465
font_03_sfnt_off0000a28d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA28D 16336 bytes
SHA-256: 0cd48ec272a13bae8f743714e09bba90cfd2d064a08306b85c4f68c22694b550