Malicious PDF — malware analysis report

Static analysis result for SHA-256 213871f978fedd43…

MALICIOUS

PDF

70.5 KB Created: 2021-02-14 21:12:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b5944e9d6a2bc5d77b7c4ab5960b7635 SHA-1: 667b28ed6763b1bed3c85b408d6e6806b0ea0453 SHA-256: 213871f978fedd434032b2e0f4a157924289810e76aa26fb663a972328244b2e
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://leonvi.ru/aws?utm_term=hicksville+weather+report PDF link annotation
    • https://cdn.sqhk.co/definuseju/hVUjjie/flying_car_city_3d_apk.pdfIn PDF document text
    • http://gatokin.iblogger.org/information_of_abstracted_empiricism.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408330/normal_60183518d3a1f.pdfIn PDF document text
    • http://xizadewakali.iblogger.org/kobutejadolofa.pdfIn PDF document text
    • http://testersairf.xyz/regional_anesthesia_books_freeebn7x.pdfIn PDF document text
    • https://cdn.sqhk.co/kezixowog/W4FDihV/88108882338.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417659/normal_60008e31d5a7e.pdfIn PDF document text
    • https://cdn.sqhk.co/xawefigi/hewjhhd/dezixetefaxev.pdfIn PDF document text
    • https://dokurawufiza.weebly.com/uploads/1/3/0/7/130739275/25fb145b1e97f6.pdfIn PDF document text
    • http://dfds.in/98612652187pb810.pdfIn PDF document text
    • https://kolabonedabisam.weebly.com/uploads/1/3/4/3/134398983/3432861.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410976/normal_5fe6dbd776073.pdfIn PDF document text
    • https://memetunariva.weebly.com/uploads/1/3/1/4/131454345/molonarep.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jaloto/angular_7_variable_in_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/advantages_of_non_probability_sampling.pdfIn PDF document text
    • http://ponadik.epizy.com/chips_2017_full_movie_free.pdfIn PDF document text
    • http://begupegag.epizy.com/centreport_wellington_container_tracking.pdfIn PDF document text
    • https://s3.amazonaws.com/dedinavesute/pinavojeropov.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_off0000d910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD910 5200 bytes
SHA-256: 5fdb96c04cdd5eedde8539b7e3d09eb3288c8a74aa816494bb386dab0e82b397
font_01_sfnt_off0000eace.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEACE 10096 bytes
SHA-256: 436e4a76cc42f4acd28fee6a9ff297f14008e7e543b332321392cffdf8896c8c