Malicious PDF — malware analysis report

Static analysis result for SHA-256 899221b2c7c13b68…

MALICIOUS

PDF

73.2 KB Created: 2021-03-03 00:05:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: badce900ea06524a4245050a2f5507d1 SHA-1: c02d596e47a0a2ba348b989815600a8dad6d010a SHA-256: 899221b2c7c13b68a18a7017e9929c2d028a59d69365a27e93ab55620b83fdcf
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://maypoin.ru/award?keyword=machine+learning+definition PDF link annotation
    • https://luvodufugatese.weebly.com/uploads/1/3/4/8/134893210/garipurozefeniro.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/jMFijJC/infectonator_world_dominator.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384820/normal_5fd644a406784.pdfIn PDF document text
    • https://cdn.sqhk.co/rapowipijes/77rgUar/fojapuporaxagekomuxobu.pdfIn PDF document text
    • https://lefesime.weebly.com/uploads/1/3/4/8/134882546/fuxodotanojo.pdfIn PDF document text
    • https://cdn.sqhk.co/nivatasob/fiijfDR/4_pic_1_word_answer_3561.pdfIn PDF document text
    • https://cdn.sqhk.co/mevazasid/bifkF55/31131606591.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496597/normal_5ff2d796a4496.pdfIn PDF document text
    • https://kepijiloxa.weebly.com/uploads/1/3/4/1/134108658/cd2c8b.pdfIn PDF document text
    • https://cdn.sqhk.co/rapenikidu/jioibAw/cruises_out_of_galveston_texas_february_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414696/normal_6010c8c8921af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393508/normal_600a3d4876b36.pdfIn PDF document text
    • https://nezopubetuw.weebly.com/uploads/1/3/2/6/132681339/428256.pdfIn PDF document text
    • https://cdn.sqhk.co/vetelojid/fBOjhhd/football_training_equipment_for_lineman.pdfIn PDF document text
    • https://todatotosikuped.weebly.com/uploads/1/3/0/7/130740429/e3ee34d267b7c5.pdfIn PDF document text
    • https://jenejipita.weebly.com/uploads/1/3/4/4/134473981/sudozenapezatu.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/lanubili/celia_cruz_quimbara.pdfIn PDF document text
    • https://s3.amazonaws.com/ruzaganog/gatonose.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/acrimony_full_movie_toxicwap.pdfIn PDF document text
    • https://s3.amazonaws.com/kozewuposoridil/pazuzuwolato.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_off0000dd1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD1B 5112 bytes
SHA-256: eb556e0d5f81dcd2978428a223240e8c2a49e9983f990e3de887ddd90d8553c4
font_01_sfnt_off0000ee86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE86 12760 bytes
SHA-256: 74181c8fd1eca25d1529cd6184537f4ccb022f6e503092e3d77193b5b515ef40

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