Malicious PDF — malware analysis report

Static analysis result for SHA-256 6421eed57bb16061…

MALICIOUS

PDF

63.6 KB Created: 2021-02-11 19:52:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b1311d74566a6eeaad987944c788e3a8 SHA-1: 78c200226f1d09bf46b4ab0610a2b59e6e84944a SHA-256: 6421eed57bb16061f4647a2f80bdba880c13d652abc752eb46e0244ed1b991b8
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://bologen.ru/wix?keyword=drastic+emulator+apk+download+apkpure PDF link annotation
    • http://appletopshop.ru/jetuwosilozidopokdefsr.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419818/normal_5fe1a59352d5c.pdfIn PDF document text
    • https://cdn.sqhk.co/foxuninulini/Whi8gge/bagotaxanusefotu.pdfIn PDF document text
    • http://bluetea.space/anxiety_screening_test0ie4m.pdfIn PDF document text
    • http://ita-bio.fun/el_movimiento_que_hace_ocasos_en_la8n385.pdfIn PDF document text
    • https://xezajorawelo.weebly.com/uploads/1/3/1/4/131408008/favojipafap-kubalet-gunokikojowejus-jozununoralalad.pdfIn PDF document text
    • http://delayikapy.xyz/aosp_android_9._0_pie_s6_edge3q506.pdfIn PDF document text
    • http://flipping-car.online/xijewiwugkoboh.pdfIn PDF document text
    • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/4908943.pdfIn PDF document text
    • http://pr-bux.online/accentuate_the_negative_answers_investigation_3ult2m.pdfIn PDF document text
    • http://nout-prokat.website/32366500781seycy.pdfIn PDF document text
    • http://moviesaddaa.online/super_mario_jump_and_run_mod_apkw15b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502245/normal_5fe8899ae34a6.pdfIn PDF document text
    • https://nudabixe.weebly.com/uploads/1/3/4/5/134505388/kutekiger.pdfIn PDF document text
    • http://kpovli.ru/uber_driver_application_download44d8m.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tininababa.rf.gd/trust_fund_movie_free.pdfIn PDF document text
    • http://jojanotesejivi.epizy.com/android_spinner_background_color_arrow.pdfIn PDF document text
    • http://bokakemipik.epizy.com/ieee_srs_template_example.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_off0000bbf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBF9 5376 bytes
SHA-256: 79e22696fb8568a073c69ba6416d622cd40f2a2c242d1a7b488f7c4588c0744d
font_01_sfnt_off0000ce39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE39 10220 bytes
SHA-256: fa05d4e2a71f4345efb812e1324c1a1bc019c4aa0ba79e36e2072d2ceedc91ff