Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d0ca657c991745…

MALICIOUS

PDF

72.4 KB Created: 2022-04-05 19:36:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: 848ddffdcea4e7f1f145990b75ae3651 SHA-1: 66cb9e410f161e953a9a7d3a66846810570abf0e SHA-256: c7d0ca657c991745c8664648c428503d60f5409ab872812baaa920401c24c943
266 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 8

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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://lazav.co.za/YmrXLWy8?keyword=brother%20sewing%20machine%20cs6000i%20parts PDF link annotation
    • https://jasunibimagimuf.weebly.com/uploads/1/3/4/7/134733129/memelibiretojeguxuro.pdfIn PDF document text
    • http://jeanthompson.nl/ckfinder/userfiles/files/54815944414.pdfIn PDF document text
    • https://bugupogif.weebly.com/uploads/1/3/4/7/134766918/nanufuguzaraw.pdfIn PDF document text
    • https://zuwoxomefatof.weebly.com/uploads/1/4/1/2/141295256/jorokozu.pdfIn PDF document text
    • https://guvujuxedudekef.weebly.com/uploads/1/3/1/1/131164066/wejenidepa.pdfIn PDF document text
    • https://dolijirobodukij.weebly.com/uploads/1/3/5/4/135400652/5234132.pdfIn PDF document text
    • https://repenakexo.weebly.com/uploads/1/3/4/6/134600143/479b105c5e618b7.pdfIn PDF document text
    • https://kefufavara.weebly.com/uploads/1/3/1/4/131407952/fodowe-manezi.pdfIn PDF document text
    • https://tegikalom.weebly.com/uploads/1/3/0/8/130874380/fepemesopepu.pdfIn PDF document text
    • http://lavrstroy.ru/img/photo/files/51868216672.pdfIn PDF document text
    • https://dizokilupufenof.weebly.com/uploads/1/3/4/7/134767898/576d19d360c.pdfIn PDF document text
    • https://radutarogo.weebly.com/uploads/1/3/4/3/134379411/fibirunenela-xedofitirazenu-poworebaw-lasoledezepuzuf.pdfIn PDF document text
    • https://dovogejeromew.weebly.com/uploads/1/3/4/6/134666082/zuvibaz_vamukuse.pdfIn PDF document text
    • https://vowabogebem.weebly.com/uploads/1/3/0/7/130775978/ripawonikim.pdfIn PDF document text
    • https://ninuwekij.weebly.com/uploads/1/3/4/6/134625354/gimodonarotumu-ruralumap-zifekeda.pdfIn PDF document text
    • https://internationallanguagenavigators.com/media/24515434290.pdfIn PDF document text
    • https://gekimirit.weebly.com/uploads/1/3/4/7/134700474/1745708.pdfIn PDF document text
    • https://fipokotosa.weebly.com/uploads/1/3/4/5/134506619/d823c6a.pdfIn PDF document text
    • http://wu-pao.com/upfiles/editor/files/51826853592.pdfIn PDF document text
    • https://xuvitekopa.weebly.com/uploads/1/3/2/7/132712193/1293989.pdfIn PDF document text
    • https://dovewonarada.weebly.com/uploads/1/3/4/6/134672256/nutoforas.pdfIn PDF document text
    • https://vubisurajoguv.weebly.com/uploads/1/3/4/2/134265568/2490438.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_off0000b6e7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b6e7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b6e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB6E7 11204 bytes
SHA-256: 3c1acc8061e3e4b500f487ffccff2af77c98966f269ecd023d8427a42000847c
font_01_sfnt_off0000d11a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD11A 16372 bytes
SHA-256: 6e5101e5a3b6f06e53b05e27f1622e5eb81e54b4a8dca9e73a550bfde0b9d749
font_02_sfnt_off0000fb64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB64 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1