Malicious PDF — malware analysis report

Static analysis result for SHA-256 15b98e093418fc11…

MALICIOUS

PDF

72.7 KB Created: 2021-02-26 10:43:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3f01f685e1609ed1cf0cd8c608857b77 SHA-1: 49d77e52141a90cfb007e5db90f2f98abbc700cd SHA-256: 15b98e093418fc1134c25d93719bc7b6ab2f7bc8e019d4dbba5b38ac1493c771
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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=truck+repair+manuals+online PDF link annotation
    • https://cdn.sqhk.co/luwagoma/jjcOicm/jamman_stereo_looper_solo_xt.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzitomizaj/hgiheGy/download_o_launcher_2020.pdfIn PDF document text
    • http://fowirunuwajuk.iblogger.org/ieee_conference_paper_template_word.pdfIn PDF document text
    • http://mikovil.mywebcommunity.org/tebipuregekut.pdfIn PDF document text
    • http://kixiwogazu.sportsontheweb.net/harry_potter_toy_castle_2001.pdfIn PDF document text
    • https://zupuluduwiwafop.weebly.com/uploads/1/3/2/6/132681460/susitatipifusoj_xazufugadovuv_silogurejusona_bufitilamupi.pdfIn PDF document text
    • https://cdn.sqhk.co/tusifefovozu/f7wgirn/dinizelak.pdfIn PDF document text
    • https://cdn.sqhk.co/noxisoture/1pr6ehb/waloxobag.pdfIn PDF document text
    • http://palejep.22web.org/raligadijubefasakutezimi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jugoviki.rf.gd/how_to_find_the_number_of_periods_in_compound_interest.pdfIn PDF document text
    • http://kozogasivufi.myartsonline.com/66617560594.pdfIn PDF document text
    • http://rebivik.epizy.com/46_bike_race_video.pdfIn PDF document text
    • http://vilepobafomunow.atwebpages.com/83881432147.pdfIn PDF document text
    • http://bavatesivo.myartsonline.com/thug_kitchen_enchiladas.pdfIn PDF document text
    • http://sexililelaweru.rf.gd/feasibility_study_templates_free.pdfIn PDF document text
    • http://wutejaxevewef.myartsonline.com/operating_in_the_courts_of_heaven_robert_henderson.pdfIn PDF document text
    • http://lutepebenunara.rf.gd/95522909207.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_off0000e378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE378 5092 bytes
SHA-256: dfbe1193623e4287d754ec4aef0eb5434b2a6fa71e2fcfbe7f9784cfc3e1431b
font_01_sfnt_off0000f4b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B6 9748 bytes
SHA-256: b88654a874c63e3490900e8ac7c1d29772a8bc16967de1da7360365272c9ab84