Malicious PDF — malware analysis report

Static analysis result for SHA-256 4398dff8e5d01272…

MALICIOUS

PDF

66.2 KB Created: 2021-03-01 01:01:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 350a8365deb2bdb8fd18f10bd27f4d56 SHA-1: ae67a76bc96e9fad81981e20e8890ee6feb00678 SHA-256: 4398dff8e5d01272a1ef77dcc1ff95da66edc68150c5484e28d43d435092d6cd
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://lozipotod.ru/wix?keyword=samsung+gear+fit+2+sm-r360+manual PDF link annotation
    • http://nowukusox.mypressonline.com/the_bfg_movie_trailer_2016.pdfIn PDF document text
    • https://cdn.sqhk.co/rutunidosaw/b1yr73i/47445482057.pdfIn PDF document text
    • https://lifitexuga.weebly.com/uploads/1/3/4/3/134356919/xegosibebobofi.pdfIn PDF document text
    • http://kirakexig.mypressonline.com/we_the_kings_sad_song_instrumental_download.pdfIn PDF document text
    • https://dexulivixuwe.weebly.com/uploads/1/3/0/7/130739852/2656e6104.pdfIn PDF document text
    • http://uptodate.site/kosukaxuzonedevotaxetmirt.pdfIn PDF document text
    • https://xamikike.weebly.com/uploads/1/3/1/4/131406211/a89252db.pdfIn PDF document text
    • https://wepusiviji.weebly.com/uploads/1/3/4/6/134661614/8ccd3ff0bc5648.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/firudegix/69567206115.pdfIn PDF document text
    • http://tavoxelelenasi.onlinewebshop.net/the_leftovers_season_1_episode_8_review.pdfIn PDF document text
    • https://s3.amazonaws.com/xebuvuwov/gizetadev.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_off0000c665.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC665 5816 bytes
SHA-256: 61554868aa6b49be98aa691d9012c5b5fdc5b707a058a35e200d730e013cc751
font_01_sfnt_off0000da1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA1D 9884 bytes
SHA-256: 7f4929a165ef405b617d55bcb42bf3780129e975d1c90d055b8e86e20036cf9c