Malicious PDF — malware analysis report

Static analysis result for SHA-256 8787be6a2327aacd…

MALICIOUS

PDF

66.5 KB Created: 2021-03-07 14:49:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a83ce0303b23d9a671c5fb9c64a423cc SHA-1: b97f2fe2e7d16c2f53b6ba8c06ccbe2bd412c889 SHA-256: 8787be6a2327aacd92b2d7fac002be629655b31bfe60898d6a1c8e84c5cbbfee
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://fokemale.ru/wix?keyword=d2+circuits+tipers+answers PDF link annotation
    • https://cdn.sqhk.co/libarazituw/bijieji/81776662313.pdfIn PDF document text
    • https://nakigere.weebly.com/uploads/1/3/4/6/134608851/siluxerozuzi.pdfIn PDF document text
    • https://cdn.sqhk.co/lukulobu/diijigg/super_smash_bros_clash_ds_download.pdfIn PDF document text
    • http://jiwapadenejeza.getenjoyment.net/kubota_bx2200_steering_cylinder_repair.pdfIn PDF document text
    • http://jinevul.mygamesonline.org/sepogujijetinixi.pdfIn PDF document text
    • https://cdn.sqhk.co/bupewazadufa/ec2MAed/towem.pdfIn PDF document text
    • https://cdn.sqhk.co/lakodatoli/gdgiQ3r/magic_tiles_3_download_pc.pdfIn PDF document text
    • http://tofotibuwul.sportsontheweb.net/97058758106.pdfIn PDF document text
    • https://bukodagunotul.weebly.com/uploads/1/3/4/0/134012399/7a3432e0.pdfIn PDF document text
    • https://cdn.sqhk.co/dinigivo/Ijcvzhg/retract_battle_royale_apk.pdfIn PDF document text
    • http://marifivelaj.mygamesonline.org/7209417911.pdfIn PDF document text
    • http://wotukujis.sportsontheweb.net/tesugoje.pdfIn PDF document text
    • https://vutuzanepe.weebly.com/uploads/1/3/1/4/131453188/falepabarede.pdfIn PDF document text
    • http://larebalin.mypressonline.com/ziroxenasiziwujum.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vipuzala.myartsonline.com/73407632786.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/pakenevumamumezesego.pdfIn PDF document text
    • http://tevefetilojas.atwebpages.com/black_and_decker_weed_eater_electric_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/housefull_4_songs_bestwap.pdfIn PDF document text
    • http://zogosugo.onlinewebshop.net/how_to_adjust_tension_on_lane_recliner.pdfIn PDF document text
    • https://s3.amazonaws.com/tadevewuju/grange_park_primary_school_enfield_ofsted_report.pdfIn PDF document text
    • https://s3.amazonaws.com/fasomusogapovi/23519824557.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_off0000c8ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8CE 5116 bytes
SHA-256: 2a925bc6dad9a4f415d42050cdb24869ef12c44acaf3f53cbca9ce309cc41118
font_01_sfnt_off0000da60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA60 10104 bytes
SHA-256: cee604be5e5dc65d1aa2debcdce02af1be90c3c7623cfb40f43eb5e974463d3e