Malicious PDF — malware analysis report

Static analysis result for SHA-256 133bb55f4eb6bece…

MALICIOUS

PDF

73.0 KB Created: 2021-03-06 16:34:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7d8c96b2192dc295539c8175c192e342 SHA-1: 4b0a7a76cbb7f19df619855180d2062eef46c245 SHA-256: 133bb55f4eb6bece03cdcd41808f7911e3e44998903aa031e203d2194ab9f816
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://jacksth.ru/award?keyword=arcgis+10.7+tutorial+pdf PDF link annotation
    • https://fusavufotopos.weebly.com/uploads/1/3/4/6/134634064/3832613.pdfIn PDF document text
    • https://vejotawugupexo.weebly.com/uploads/1/3/4/7/134756202/nusivefo-xidinuk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492253/normal_60120c0026950.pdfIn PDF document text
    • http://dujifasuda.iblogger.org/38823004714.pdfIn PDF document text
    • http://wofeboz.66ghz.com/aniwatcher_video_er.pdfIn PDF document text
    • https://pinafizupefed.weebly.com/uploads/1/3/1/3/131380591/4671481.pdfIn PDF document text
    • https://cdn.sqhk.co/jizapamilizo/fLhe9PZ/94115249007.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383795/normal_5febfee35c64f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420028/normal_5ffff7efb8439.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377128/normal_603d0ab7c76f9.pdfIn PDF document text
    • https://fipuzogafugigen.weebly.com/uploads/1/3/4/1/134108551/bofamijigejisidit.pdfIn PDF document text
    • https://cdn.sqhk.co/meduxemij/Aiaigk6/injustice_gods_among_us_ps4_special_moves.pdfIn PDF document text
    • https://duxataravur.weebly.com/uploads/1/3/4/0/134017775/defuzejojuvudef-zamiduwub-todarobokozumet.pdfIn PDF document text
    • https://gosabejeda.weebly.com/uploads/1/3/1/4/131453015/vinime_wemewewez.pdfIn PDF document text
    • https://nokifijipuf.weebly.com/uploads/1/3/4/3/134305843/73e1637a6b73ef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://magikid.epizy.com/bricks_breaker_shot_apk_mod.pdfIn PDF document text
    • http://lavaraf.epizy.com/50131827099.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/explain_the_principles_of_ecotourism.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/blood_of_elves_audiobook_free.pdfIn PDF document text
    • http://saxogif.epizy.com/bakabazuxavegud.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/html_to_c._net.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_off0000e15e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE15E 5616 bytes
SHA-256: 62b06e214d072b48d5e07606cb8e68c80d192b38c4a33ac1ac0e54cc735f8484
font_01_sfnt_off0000f4a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4A0 10000 bytes
SHA-256: e60d622336486460aa280d8c46e331eca4295eefc71c2593c944539dc78e306f

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