Malicious PDF — malware analysis report

Static analysis result for SHA-256 357eb03d8a04f017…

MALICIOUS

PDF

70.3 KB Created: 2021-03-01 20:42:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 817ff0a3fcd5d6296a244c187c54492a SHA-1: 7dba726220f056ed12b78b014453b465948f55a9 SHA-256: 357eb03d8a04f01741cca0719eb68db5689fd441ef46745bd4fe0f808fcbd375
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://mezovuduw.ru/wix?keyword=water+chemistry+mark+benjamin+pdf PDF link annotation
    • https://cdn.sqhk.co/refevebux/jd6ge7d/90s_music_playlist_rock.pdfIn PDF document text
    • https://zurejekivob.weebly.com/uploads/1/3/0/8/130813755/4cb5be822caea.pdfIn PDF document text
    • https://detaxenenikub.weebly.com/uploads/1/3/0/7/130776267/pewuvojureguw-zobakobubokog-sobiroxaximara-siwite.pdfIn PDF document text
    • https://javagiluxonuv.weebly.com/uploads/1/3/1/4/131406569/e5073d5efd.pdfIn PDF document text
    • https://pegitizikaze.weebly.com/uploads/1/3/4/7/134730703/jewizeb_rusap.pdfIn PDF document text
    • https://cdn.sqhk.co/jiluputumusi/iiciegh/spotlight_theater_mankato_4.pdfIn PDF document text
    • https://cdn.sqhk.co/vodadavubex/jhejaDV/lifutex.pdfIn PDF document text
    • https://sofirutowik.weebly.com/uploads/1/3/1/3/131381411/vowarifufe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450907/normal_5fe62674040fd.pdfIn PDF document text
    • https://sojabejob.weebly.com/uploads/1/3/4/8/134890412/659544.pdfIn PDF document text
    • https://cdn.sqhk.co/majumoros/cOkTiaA/block_fortress_apk_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wodelaganav/fjbTehb/all_star_soccer_ps1_rom.pdfIn PDF document text
    • https://zazuxari.weebly.com/uploads/1/3/4/3/134319397/822c68bae9a5d.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/wipotegadodorek/45275050587.pdfIn PDF document text
    • https://s3.amazonaws.com/lanaladu/jobs_australia_annual_report.pdfIn PDF document text
    • http://kafozubasopuji.rf.gd/aadhar_card_correction_form_online.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/ah44e_hall_effect_sensor_datasheet.pdfIn PDF document text
    • http://guwuwusiva.rf.gd/23440082699.pdfIn PDF document text
    • http://faculty.washington.edu/markbenj/CEE543In 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_off0000d498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD498 5756 bytes
SHA-256: 24fb5484682128a4e3852d654d77f45f0ad9cf256c4a6a8293283933ec2a6496
font_01_sfnt_off0000e819.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE819 10460 bytes
SHA-256: 0efb5935ccaa1966c4d9f59a4d89fb32d7d5eefc926a505d977f3a17442f65cb