Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddb3814816c4b3f…

MALICIOUS

PDF

75.4 KB Created: 2022-04-12 03:35:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 78bd20f8151beced37c572bc0ab4ede1 SHA-1: aa0327ece07e772a554b83ce831afcca9defa7ce SHA-256: 3ddb3814816c4b3fea9c86e82a13df2e44eefc28d542fa1f1125150397e6d21d
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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.
  • 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://sunuf.co.za/YmrXLWy8?keyword=how%20to%20set%20up%20call%20forwarding%20on%20esi%20phone PDF link annotation
    • https://tpk-m.ru/files/file/sowufibubogokifukopusewo.pdfIn PDF document text
    • https://saxurugilura.weebly.com/uploads/1/3/2/8/132814125/3398956.pdfIn PDF document text
    • https://nebikaxo.weebly.com/uploads/1/3/4/6/134655772/99ca1f7f5f.pdfIn PDF document text
    • https://www.bbmnetlicitacoes.com.br/cms/ckfinder/upload/files/ralupo.pdfIn PDF document text
    • http://srisbs.com/kcfinder/upload/files/72532025120.pdfIn PDF document text
    • http://chikatere.com/Upload/files/22737138684.pdfIn PDF document text
    • http://bjsddesign.com/filespath/files/20220327210137.pdfIn PDF document text
    • https://fejufawos.weebly.com/uploads/1/3/4/3/134328201/9431020.pdfIn PDF document text
    • https://vanimiravupu.weebly.com/uploads/1/3/2/7/132710567/jesivabokomu-golole.pdfIn PDF document text
    • http://knowleangling.co.uk/ckfinder/userfiles/files/pupawawikogupa.pdfIn PDF document text
    • https://gaxasonazeg.weebly.com/uploads/1/3/4/3/134375181/e8a2ae01094135.pdfIn PDF document text
    • https://digeforoxega.weebly.com/uploads/1/3/4/6/134668277/865789.pdfIn PDF document text
    • http://lianbang123.com/uploads/files/202202191851181207.pdfIn PDF document text
    • https://wadamosemexijep.weebly.com/uploads/1/3/4/4/134434227/e1643307f56.pdfIn PDF document text
    • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/afc198238e232b1563f6742941270c9c/4958701231.pdfIn PDF document text
    • https://sokolzgierz.pl/web/uploads/files/larigunafevugep.pdfIn PDF document text
    • https://franchiseharbor.com/files/files/gizijenenepukotujekonofox.pdfIn PDF document text
    • https://costarica4d.com/contents/files/niribaresotenoxofuwined.pdfIn PDF document text
    • http://nj-rshb.com/v15/Upload/file/2022391150359329.pdfIn PDF document text
    • https://loxuvozuru.weebly.com/uploads/1/3/4/7/134728716/sarugez-xilalolemokula.pdfIn PDF document text
    • https://jowizixevudaw.weebly.com/uploads/1/3/4/4/134489406/zewaxosapexibiz.pdfIn PDF document text
    • http://ruihuitax.com/files/file/joxas.pdfIn PDF document text
    • https://gizaviation.com/uploads/files/detimidosodumoxuvekepu.pdfIn PDF document text
    • https://livozuduk.weebly.com/uploads/1/3/4/5/134583284/f4a9a4e2af7dc5.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 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_off0000c2a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2A1 16708 bytes
SHA-256: cd1a1c55d79416fe194e623c8a92df1f2b7f312596ce2dd67c821c4e4aa12ebb
font_01_sfnt_off0000ee75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE75 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001068c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1068C 11076 bytes
SHA-256: f5b292ef07fc83a6d9c66276a3ad7e0f4e63e202139ca7418f32fdbe5eaf96a2