Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a2488f0efc0728…

MALICIOUS

PDF

73.7 KB Created: 2022-04-03 10:01:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 9fafe377b073f283cf6d6181b70f8fa2 SHA-1: 34c43bf234fec524bbef1945bd3a8bc19bd65c7b SHA-256: 18a2488f0efc072893468453478cdab3944dd8462d725ea223871829f5f491b3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • 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.
  • 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://mifuj.co.za/YmrXLWy8?keyword=what%20bobbin%20for%20singer%209960 PDF link annotation
    • https://cengilli.com/icerik_images/file/98942370241.pdfIn PDF document text
    • http://oks.urmon.uz/kcfinder/upload/files/79465261774.pdfIn PDF document text
    • https://gopelema.weebly.com/uploads/1/3/4/3/134314553/bokamawuwopoduto.pdfIn PDF document text
    • http://anhuicrew.com/upload_fck/file/2022-3-8/20220308121749733364.pdfIn PDF document text
    • https://guvizetajujuwu.weebly.com/uploads/1/3/4/6/134617183/tukojab_sagoxobuv.pdfIn PDF document text
    • http://xindeshiye.com/uploadfile/file///2022031202280552.pdfIn PDF document text
    • https://pezusadoti.weebly.com/uploads/1/3/4/5/134525395/mopujovugex-judodolerepusi.pdfIn PDF document text
    • http://naszemotyle.natura2000.pl/imgturysta/files/73151514600.pdfIn PDF document text
    • https://actieaanbieding.com/upload/content/files/bupapukuvidodom.pdfIn PDF document text
    • http://krokodilok.hu/_user/file/xafujebu.pdfIn PDF document text
    • https://pixasarajesuwov.weebly.com/uploads/1/3/4/6/134688766/9031448.pdfIn PDF document text
    • https://zesujejiviwi.weebly.com/uploads/1/3/4/7/134729849/6788538.pdfIn PDF document text
    • http://offokin.ru/sites/default/files/file/zilafamuvelasuvodopiboju.pdfIn PDF document text
    • http://studiobardinisrl.com/userfiles/files/wefixeniwinu.pdfIn PDF document text
    • http://mediedil.eu/userfiles/files/56021224356.pdfIn PDF document text
    • https://pesefusuf.weebly.com/uploads/1/3/4/4/134486856/xaduti_nixobexe_voxok_rikomoza.pdfIn PDF document text
    • https://fawurefo.weebly.com/uploads/1/3/4/4/134441885/820096e.pdfIn PDF document text
    • http://lucca.jpsoftware.sk/upload/files/60326979723.pdfIn PDF document text
    • https://zudepiguzow.weebly.com/uploads/1/3/4/7/134774383/pojapuzavelo_xodoxojekexob_vukel.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 extracted file (font_00_sfnt_off0000b927.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b927.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB927 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d139.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD139 17576 bytes
SHA-256: 4cad9e2483d6f1f3148c3d0afd5232dd945b6b106eff2523f4e3eb72b64a0dbe
font_02_sfnt_off0000feb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEB1 11040 bytes
SHA-256: e95bf478e12bfa695d630bc398e83c723fe74ea9da3dff6cce1c99e0a5db7693