Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff9a58dfcd04ba7f…

MALICIOUS

PDF

72.0 KB Created: 2021-03-02 05:42:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e9541d7926406f8c4bbdf20e608a7371 SHA-1: fc32d4f01d0274c94fcf06134e54c8aac0111e75 SHA-256: ff9a58dfcd04ba7f2dd61e1e0a2e6f6727d2115df055ba68253c06a126b9bb7e
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://druttle.ru/award?keyword=why+isn%2527t+my+pellet+stove+lighting PDF link annotation
    • http://bodegumuxizobi.22web.org/enlightened_journey_osrs_quick_guide.pdfIn PDF document text
    • https://gezivotad.weebly.com/uploads/1/3/5/9/135963035/kidimusixot.pdfIn PDF document text
    • http://my-favshopg.online/644678761513b2g7.pdfIn PDF document text
    • https://vebuwume.weebly.com/uploads/1/3/5/3/135349689/491115.pdfIn PDF document text
    • https://cdn.sqhk.co/razonavari/eMibvlW/18885424607.pdfIn PDF document text
    • https://balixilime.weebly.com/uploads/1/3/1/3/131398392/vijiwadebisax-gopogover.pdfIn PDF document text
    • https://cdn.sqhk.co/purorelaz/eIib6B2/planet_waves_guitar_tuner_how_to_use.pdfIn PDF document text
    • http://fazoluniguket.iblogger.org/vizio_m65-c1_sound_but_no_picture.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/mefonevimimix/aplikasi_cinema_21_terbaru.pdfIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/adverbs_of_time_worksheets_for_grade_3.pdfIn PDF document text
    • http://losirerosusakaf.rf.gd/xidoxabozasidutuzadeva.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/assassin_s_creed_syndicate_pc_rg_mechanics.pdfIn PDF document text
    • http://zamutodud.rf.gd/polugogibizegepodif.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_off0000dd2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD2F 5136 bytes
SHA-256: 0556332d88b9eaa3a05e0712e6ccfeb0bf879aa22299c32aa33a1e31cc219104
font_01_sfnt_off0000eead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEAD 10596 bytes
SHA-256: 2a103c818f657942f81559735041b63aaa61b64b4078bd2e142edb2f565669b0