Malicious PDF — malware analysis report

Static analysis result for SHA-256 3082867aa3299a21…

MALICIOUS

PDF

72.1 KB Created: 2021-03-03 17:39:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 736de515416ec8e890125a09c66e6e4f SHA-1: 426f29ca0198c732c77ddc7f3ffa8f21a1ddba47 SHA-256: 3082867aa3299a21cffb771268f15c2030956c4d5acbc7b7aa474c67e976d07a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://resalured.ru/wix?keyword=tintenherz+buch+pdf PDF link annotation
    • https://litunuvojiv.weebly.com/uploads/1/3/0/9/130969221/7398248.pdfIn PDF document text
    • https://gifuliranofave.weebly.com/uploads/1/3/0/8/130873810/3692062.pdfIn PDF document text
    • http://fametasubub.22web.org/85005619870.pdfIn PDF document text
    • https://rarejiwu.weebly.com/uploads/1/3/1/6/131606055/robikalopamik.pdfIn PDF document text
    • http://widonatozeg.mypressonline.com/the_things_they_carried_chapter_17-19_quizlet.pdfIn PDF document text
    • http://sawedes.mywebcommunity.org/33348759279.pdfIn PDF document text
    • https://sudikefasegez.weebly.com/uploads/1/3/1/0/131070357/puwuvawudejexeson.pdfIn PDF document text
    • http://sevezor.scienceontheweb.net/pudukiziju.pdfIn PDF document text
    • http://pefiworawodud.mypressonline.com/weed_eater_featherlite_fl20_price.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bidovug.rf.gd/dt466e_engine_hp.pdfIn PDF document text
    • http://piwolimosopobu.myartsonline.com/does_jared_do_ring_resizing.pdfIn PDF document text
    • http://gamupuzif.epizy.com/50661567998.pdfIn PDF document text
    • http://xewaxal.epizy.com/wefig.pdfIn PDF document text
    • http://pojitak.epizy.com/intro_to_psychology_practice_test_chapter_1.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_off0000df46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF46 4964 bytes
SHA-256: 848d499bcb6fcdce659a8927c0e0126194c5dd34cbaa31972369a11af65b2397
font_01_sfnt_off0000f029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF029 10864 bytes
SHA-256: afdab0ada93ddd8095521dbfca853f02205e3d2cf6dcc95269b99640be2d60fe