Malicious PDF — malware analysis report

Static analysis result for SHA-256 daf223254f1ef416…

MALICIOUS

PDF

74.9 KB Created: 2021-02-16 09:28:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 046056c2430f247b89248b7d6ebeff79 SHA-1: e49de6d524061fb92e20912a71694c09b3ce7918 SHA-256: daf223254f1ef416fca0bc9a57b7a18fc41a88fdedc7dfdc33eabc4702948c1f
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/wix?keyword=teas+test+study+guide+2016-17 PDF link annotation
    • http://rujakagixawimir.22web.org/87219457408.pdfIn PDF document text
    • https://cdn.sqhk.co/moxinivo/bibGijI/novoguduganixiwebewitirov.pdfIn PDF document text
    • https://cdn.sqhk.co/wemitupu/ib5ZjTq/fox_adventure_helmet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479212/normal_5fe337c4663c2.pdfIn PDF document text
    • https://lezafopiga.weebly.com/uploads/1/3/4/6/134628758/3598033.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370056/normal_5fe57b6bbb457.pdfIn PDF document text
    • https://cdn.sqhk.co/sinemajud/hxjinpZ/rock_out_with_your_crock_out_costume.pdfIn PDF document text
    • https://bofuvuwowu.weebly.com/uploads/1/3/1/8/131856225/ccdc6.pdfIn PDF document text
    • https://cdn.sqhk.co/xijogedobu/icjejgH/42264030253.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://widafasamuj.epizy.com/gatumovetanazelipekamutux.pdfIn PDF document text
    • https://s3.amazonaws.com/kegovev/bts_love_yourself_answer_song_sorter.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/28954769140.pdfIn PDF document text
    • http://fizuxobitunoge.epizy.com/angular_6_formgroup_radio_button.pdfIn PDF document text
    • http://puzuniposodaf.epizy.com/87963228694.pdfIn PDF document text
    • http://zaveravezujob.epizy.com/mebivogetaluzufoxalegexup.pdfIn PDF document text
    • http://badememaveg.rf.gd/picsart_pc_apps_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/gelorafudefimesufosileji.pdfIn PDF document text
    • http://vimabamavarona.epizy.com/69985267164.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_off0000e741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE741 5508 bytes
SHA-256: 7d64ac7c32fb60d199e647af5b1ef9b8628479e5af5d0d3922b18c72b304d202
font_01_sfnt_off0000fa29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA29 10704 bytes
SHA-256: 08ca50eb8aa2b28fe4120186effb9167b5b81f12c205d858c2d7affee7091d63