Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab53819be2c1a602…

MALICIOUS

PDF

84.8 KB Created: 2021-01-31 12:46:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 051d884e5d77eb0b5ee9fd9e41494e41 SHA-1: 6ca7851668d71d83d5a6c27f9f99d6bba9058262 SHA-256: ab53819be2c1a602707b84565fdcbdf5bab920b394bd1f611b469d7f65ccc2f2
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://maypoin.ru/wb?keyword=livestream%20app%20for%20firestick PDF link annotation
    • http://nomanodix.iblogger.org/little_baby_boy_photos.pdfIn PDF document text
    • http://trokot-roznica.xyz/baby_shark_1_hour_songs27w8e.pdfIn PDF document text
    • https://cdn.sqhk.co/xewasejeve/hiqGjjr/3_way_stack_switch_leviton.pdfIn PDF document text
    • https://ladufuvugekowek.weebly.com/uploads/1/3/4/1/134108614/3029549.pdfIn PDF document text
    • https://cdn.sqhk.co/jotoselu/jaoeNF1/wreck_it_ralph_2_movie_times.pdfIn PDF document text
    • http://basiditdcf.space/nekitotopupi7sl8e.pdfIn PDF document text
    • https://malosopiwa.weebly.com/uploads/1/3/2/6/132695478/2b4cd90f.pdfIn PDF document text
    • https://lewaxirilukuxod.weebly.com/uploads/1/3/0/8/130813115/16bfd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460447/normal_6004564386515.pdfIn PDF document text
    • https://jibajupo.weebly.com/uploads/1/3/1/6/131636806/mezonakol.pdfIn PDF document text
    • http://gobigs.space/mujijupuvezudovunuzigowfe9j3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481402/normal_5fe0692933fa7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455898/normal_5ff1149f71f5b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kadegezopofog.rf.gd/white_t_shirt_mockup_template_psd.pdfIn PDF document text
    • http://lisunamubeso.epizy.com/jixixodovudiguzivilonuva.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_off00010fac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FAC 5192 bytes
SHA-256: 4a2d50408bb6d128e8333efc8d2374780b078faa887aa65466a8f72480d7e81b
font_01_sfnt_off00012151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12151 10924 bytes
SHA-256: 89254365cc123d648e6cb6ba3d5078df2f6314c60eef58be047c0c0fd7496c21