Malicious PDF — malware analysis report

Static analysis result for SHA-256 829cbcf95bd4a6e8…

MALICIOUS

PDF

73.4 KB Created: 2021-03-04 00:41:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e14d05f6a0bc67246094dfbd264c301e SHA-1: 40644f173910f9f45bad4b3b0c9c1e99bef52d11 SHA-256: 829cbcf95bd4a6e8d9cb33f45e312440dc9cbf805c111979c712ef62e2b4e562
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://jottigo.ru/award?keyword=how+to+find+food+calories+per+gram PDF link annotation
    • http://moxegagiku.22web.org/61680722681.pdfIn PDF document text
    • https://lumabejisojexu.weebly.com/uploads/1/3/1/4/131455378/8222af2f03487.pdfIn PDF document text
    • http://redtea.space/physics_for_scientists_and_engineers_with_modern_physics_douglas_c._giancoliny42c.pdfIn PDF document text
    • https://pabelazulutibus.weebly.com/uploads/1/3/1/0/131070827/nifebipu_jereko_zemamenadobiw.pdfIn PDF document text
    • http://lolafoduluj.22web.org/argentina_vs_brazil_10-_1_video.pdfIn PDF document text
    • http://kataeta.club/81389046285o1an8.pdfIn PDF document text
    • http://supsun-aero.com/fafudutaruxemikis4o91d.pdfIn PDF document text
    • http://raxaterov.iblogger.org/bise_sukkur_matric_result_2019.pdfIn PDF document text
    • http://hookup755.fun/jalofivebuzuvopelugutafirpiwrd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/low_oxalate_diet_meal_plan_filetype.pdfIn PDF document text
    • http://xenamijexutagus.epizy.com/10547670346.pdfIn PDF document text
    • http://kuzebelinebofe.epizy.com/dj_album_songs_telugu.pdfIn PDF document text
    • http://bemedaxo.rf.gd/cosco_scenera_next_dlx_moon_mist.pdfIn PDF document text
    • http://gewuruso.epizy.com/2085899543.pdfIn PDF document text
    • https://s3.amazonaws.com/rodakarugupoko/characteristics_of_informal_sector_in_zimbabwe.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/nekuzalepigejadu.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/romolakudeved.pdfIn PDF document text
    • http://melotaroluna.epizy.com/videopad_video_editor_exe.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_off0000e051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE051 5528 bytes
SHA-256: 402ce54d8d055fabf14b48e96477601fbf0b84ea36aaa2980f5665db9af29faa
font_01_sfnt_off0000f31c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF31C 11148 bytes
SHA-256: 72ed207eda17f882f3e7ce4617646949228f945bc3e6cf891b0b56d8b8e47452