Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b2f5a47c17d2c3…

MALICIOUS

PDF

72.5 KB Created: 2022-03-31 11:21:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: ece5abac28ecd345ac9d56ab4c6be22d SHA-1: 634d696f072e272ec97b57d7302aa396416ab086 SHA-256: a8b2f5a47c17d2c3bf594cb9642d4ec6fcceeb0758f5e50d7e105f5d134d78ac
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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.
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • 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://ponorevex.weebly.com/uploads/1/3/1/3/131398269/limaguleva.pdf In PDF document text
    • https://pogerukafitili.weebly.com/uploads/1/3/1/4/131437037/zolokutagi.pdfIn PDF document text
    • https://malodarugamizo.weebly.com/uploads/1/3/4/8/134853004/1e96b749a3a.pdfIn PDF document text
    • http://3m18.com/images/editor/files/ferorovudukosu.pdfIn PDF document text
    • https://xajogizikotepi.weebly.com/uploads/1/3/1/4/131437636/wakezovuzebet-xevasajobixod-mawoku-sefevaj.pdfIn PDF document text
    • https://inflexi.com/kcfinder/upload/files/76696714257.pdfIn PDF document text
    • https://bemozepe.weebly.com/uploads/1/3/0/7/130739793/fepusilid_fuvanutuxut.pdfIn PDF document text
    • http://arcenevents.nl/site/upload/files/61400149454.pdfIn PDF document text
    • http://mehmetrasimmutlu.com/icerik/file/18514121465.pdfIn PDF document text
    • https://tavadubamik.weebly.com/uploads/1/3/4/4/134473349/dee443.pdfIn PDF document text
    • https://bokobuduvi.weebly.com/uploads/1/3/5/3/135347682/f1b60ab6f74e.pdfIn PDF document text
    • https://puwubebuserow.weebly.com/uploads/1/3/4/4/134403982/sabuza-jodububajugabi-xuxobategu-kevuwemugavata.pdfIn PDF document text
    • http://brandiassociati.it/userfiles/file/22466942996.pdfIn PDF document text
    • http://backupcenters.com/userfiles/file/59126862123.pdfIn PDF document text
    • https://dadekojulaza.weebly.com/uploads/1/3/4/3/134320805/fipalok.pdfIn PDF document text
    • https://sidujojuwizubal.weebly.com/uploads/1/3/4/5/134587716/biwegebo.pdfIn PDF document text
    • http://www.arborvitae.cz/ckfinder/userfiles/files/48781871376.pdfIn PDF document text
    • http://jtylek.pl/Upload/file/27843551792.pdfIn PDF document text
    • http://elixiriso.com/kcfinder/upload/files/78826761628.pdfIn PDF document text
    • http://cuathepvangohaiduong.com/images/ckeditor/files/15678844257.pdfIn PDF document text
    • https://zemizipip.weebly.com/uploads/1/3/4/0/134098502/lejupafojifujojexax.pdfIn PDF document text
    • http://ahkkpcm.org/userfiles/vifikodegalema.pdfIn PDF document text
    • https://mudasolujo.weebly.com/uploads/1/3/4/8/134886274/3586255.pdfIn PDF document text
    • https://sunuf.co.za/YmrXLWy8?keyword=hp%20laserjet%20p1006%20ink%20refillPDF 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_off0000b4a1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b4a1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b4a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4A1 18876 bytes
SHA-256: a2043f5f563065b3e2249bfc4d4f011efb4467f10c65dadd2bc3d85ded9d22df
font_01_sfnt_off0000e552.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE552 10788 bytes
SHA-256: 310989561a7cf73d9a75ca82a823586821c0184a896e423c6279f99ac3c9f55f
font_02_sfnt_off0000fe53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE53 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336