Malicious PDF — malware analysis report

Static analysis result for SHA-256 109651fd38ff2a11…

MALICIOUS

PDF

70.0 KB Created: 2021-02-07 10:03:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 444e8b57391ba64907551c363b48f79c SHA-1: e0d48cfd3958f12c5dbe034a6ba42e562687d165 SHA-256: 109651fd38ff2a11e0b332e9c84aefd5b734a1beae0e77ccdd5e3b2d24c4b3fa
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/wb?keyword=samantha%20smile%20images PDF link annotation
    • https://cdn.sqhk.co/girolivudafo/Lhfefge/movie_theaters_near_me_with_recliners.pdfIn PDF document text
    • https://zanirifut.weebly.com/uploads/1/3/1/4/131407922/2f4348.pdfIn PDF document text
    • https://topigofifudonif.weebly.com/uploads/1/3/5/3/135304546/nujazabulunur.pdfIn PDF document text
    • https://vusutiti.weebly.com/uploads/1/3/4/7/134762674/fereguruwi-bikibakomig.pdfIn PDF document text
    • https://tererenigi.weebly.com/uploads/1/3/1/4/131405956/49acd550d8870e7.pdfIn PDF document text
    • https://loxogekero.weebly.com/uploads/1/3/4/0/134040689/gowabof_videwikidozu_nasuso.pdfIn PDF document text
    • https://zedasadexim.weebly.com/uploads/1/3/0/7/130775923/3350420.pdfIn PDF document text
    • https://votozugilom.weebly.com/uploads/1/3/1/0/131071295/8501002.pdfIn PDF document text
    • https://zizobisorodevu.weebly.com/uploads/1/3/5/9/135964877/kodafarogazoponuj.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/jupevuxirapi/androidx_recyclerview_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/lulelepese/old_telugu_birthday_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sesafefanulokam/free_flash_slide_presentation_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/alien_shooter_revisited_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/80986730400.pdfIn PDF document text
    • https://s3.amazonaws.com/sikuva/27638396050.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_off0000d148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD148 5108 bytes
SHA-256: 966540a840c5971e41fed9f816a0e6240fa57bafa9ec4714277089e15b636e8c
font_01_sfnt_off0000e281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE281 12488 bytes
SHA-256: 9e1839d34d7e6ae952ebb06facd608f1b3aca602a8fe064e818193cab5a0d330