Malicious PDF — malware analysis report

Static analysis result for SHA-256 2738189822a91ddd…

MALICIOUS

PDF

69.9 KB Created: 2021-03-01 21:23:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: f7d7e07988c287a01862c9cd413ce425 SHA-1: c247011eb7d98a832bc9dbd46f6aa92e3d9726d6 SHA-256: 2738189822a91dddc06a53f0e93ad776a6ad462ad41aaabf35dad1ba1e2b21a1
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://druttle.ru/award?keyword=gamo+air+rifle+cleaning+instructions PDF link annotation
    • http://nawilojobate.iblogger.org/92624307057.pdfIn PDF document text
    • http://zusozovi.22web.org/budgeting_loan_application_form.pdfIn PDF document text
    • https://cdn.sqhk.co/nozedimasav/hbgek1D/gudupamukamubosowow.pdfIn PDF document text
    • http://fikijasofobemu.iblogger.org/musikuwamadazakelawis.pdfIn PDF document text
    • https://cdn.sqhk.co/doxanusubomo/idxSVid/12762956982.pdfIn PDF document text
    • https://cdn.sqhk.co/tumupowe/bheidwB/soluniwegoxowowokiw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390996/normal_6032939c22eb8.pdfIn PDF document text
    • https://jaxedafotonomut.weebly.com/uploads/1/3/4/8/134885779/ganoxit.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412780/normal_5ff823df4ea6c.pdfIn PDF document text
    • https://rizipopene.weebly.com/uploads/1/3/5/3/135316145/3e3f5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://viladanus.epizy.com/24360965900.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/ctet_syllabus_paper_1.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/50_best_free_movie_sites_2018.pdfIn PDF document text
    • http://pomigipasa.epizy.com/8971681150.pdfIn PDF document text
    • http://dadorisisewane.epizy.com/toxowipad.pdfIn PDF document text
    • http://vobujilub.epizy.com/25170227290.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5C8 5232 bytes
SHA-256: bb1740fbe2dafa1fa1ba7bbe84937e78f1e0844423f03bb04826a4911c2c6099
font_01_sfnt_off0000e786.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE786 10276 bytes
SHA-256: 5ecdc4c3eb0901812910091b55916b0c038fdd985088682ad7bc723406613351