Malicious PDF — malware analysis report

Static analysis result for SHA-256 58ca8c1fd8a96f58…

MALICIOUS

PDF

68.7 KB Created: 2021-03-09 00:26:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 243c2c68686dfe2f18ef9226dce21d56 SHA-1: 6ca7d8e1a0881902b55bc4f28e87eff5df034a6a SHA-256: 58ca8c1fd8a96f5888bd7073cce7d6e8b05c9a1c48a305d79e57fc6668a60cd7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://botokaw.ru/award?keyword=auditoria+forense+alvaro+fonseca+pdf PDF link annotation
    • http://sibatike.getenjoyment.net/delirium_lauren_oliver_film_streaming.pdfIn PDF document text
    • https://siwuxamafovad.weebly.com/uploads/1/3/4/4/134489720/2261d0d0aa.pdfIn PDF document text
    • http://zumufufup.sportsontheweb.net/med_math_conversions_quizlet.pdfIn PDF document text
    • https://mokabeninenaji.weebly.com/uploads/1/3/4/0/134013120/dc255ff4.pdfIn PDF document text
    • https://nasoluludeg.weebly.com/uploads/1/3/4/4/134435301/xatinutevofubizudub.pdfIn PDF document text
    • http://bozesedixek.mywebcommunity.org/limitations_of_social_media_marketing.pdfIn PDF document text
    • http://sonezabejudazof.22web.org/40385942808.pdfIn PDF document text
    • http://gimatadokij.mygamesonline.org/boselo.pdfIn PDF document text
    • http://pejelurim.getenjoyment.net/tupidixurifuve.pdfIn PDF document text
    • http://raffle.website/garou_mark_of_the_wolves_rock_move_listhma9d.pdfIn PDF document text
    • http://leree4.club/unblocked_games_76_drift_car_simulatoryjjcz.pdfIn PDF document text
    • https://lixudovu.weebly.com/uploads/1/3/4/5/134598000/rozegivar_buvikaziwes_gipizinufi.pdfIn PDF document text
    • http://xtreme-sport.ru/61165086087vzk24.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zasuwunal.myartsonline.com/vipidokorexuwusuzinef.pdfIn PDF document text
    • http://pupanifaju.rf.gd/monster_truck_shows_netflix.pdfIn PDF document text
    • http://xajulazozu.epizy.com/wondershare_filmora_filehippo.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/pearl_of_great_price.pdfIn PDF document text
    • http://sutexuvidag.myartsonline.com/basc_3_srp_sample_report.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/accu-chek_performa_nano_blood_glucose_system_instructions.pdfIn PDF document text
    • http://dejogamolefip.rf.gd/gezemipakukisikugirikox.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_off0000d036.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD036 5196 bytes
SHA-256: fdb1ff27f3b427b93294ba2578a4e84cd49f4837f3d8b82ab0848187f4617fda
font_01_sfnt_off0000e200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE200 10792 bytes
SHA-256: 7c00645f4279a0ca9d0722f7f2061fe288fa40e9be9beb2b8117d112b660bf97