Malicious PDF — malware analysis report

Static analysis result for SHA-256 66afeee4cfb03e65…

MALICIOUS

PDF

68.8 KB Created: 2021-02-13 09:33:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 60590ab0539105a85208329a794163f9 SHA-1: 4226d8b6a0193a71f2bcfbd64ed13ca1351dc4b8 SHA-256: 66afeee4cfb03e6515477f903f8a10dd9adc2c6aae8ac49b231309ced8a2a493
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/123?utm_term=sms+text+messenger+toy+instructions+jeep PDF link annotation
    • http://zathkatow.xyz/ejercicios_isomtricos_e_isotnicos6ap90.pdfIn PDF document text
    • https://cdn.sqhk.co/vimerokil/2QiaJbv/naruto_x_boruto_ninja_voltage_hack_shinobite.pdfIn PDF document text
    • http://lovelyhouse.online/hd_wallpapers_1920x1080_anime3hx2b.pdfIn PDF document text
    • http://allostar.buzz/fisica_y_quimica_1_bachillerato_sant9s3h1.pdfIn PDF document text
    • http://8gusevshop.space/befopubajazubiju4n3m.pdfIn PDF document text
    • http://disclosures.space/396348443169wh8e.pdfIn PDF document text
    • http://tesocoin.online/magic_cat_piano_tiles_piano_de_animalesdtn9z.pdfIn PDF document text
    • http://usesoda.pro/wowizisexesagojaxeluvugygyg.pdfIn PDF document text
    • http://reduslim-italia.website/41890389164oiqw4.pdfIn PDF document text
    • https://cdn.sqhk.co/xikokopek/UghhjhE/trust_crypto_wallet_ethereum.pdfIn PDF document text
    • http://gbo.guru/rufolenokobemugibomubazu997.pdfIn PDF document text
    • http://varietystore.website/rush_2049_arcade_cheatsioj1x.pdfIn PDF document text
    • https://cdn.sqhk.co/kasuvapexal/B1hfqic/likugitisemekenepisamakeb.pdfIn PDF document text
    • http://rubisteq.online/algebra_nation_section_1_topic_2_answerscdf5n.pdfIn PDF document text
    • http://crawlmqyu.space/zexizewuwexisuzq8p4.pdfIn PDF document text
    • https://cdn.sqhk.co/businaxidare/cxgf18f/hearts_fc_live_tv.pdfIn PDF document text
    • http://prizinsta.info/aggiornamento_android_tablet_mediacom_707iu2zo5.pdfIn PDF document text
    • http://rasprodavaika.ru/arid_areas_in_egyptf5z1t.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ce8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE8B 5360 bytes
SHA-256: a7b57e2efe6e3122bf1124f978567a97a94ccdba46bc72dcb64e68948ce70646
font_01_sfnt_off0000e0cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0CC 11220 bytes
SHA-256: 2c37faa22a9f220e42d64261ef6de6f4a1ba4def2b8261213b24ac13137a78b4