Malicious PDF — malware analysis report

Static analysis result for SHA-256 1cdbb02effbc1acb…

MALICIOUS

PDF

69.5 KB Created: 2021-02-22 02:21:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 82aa3ccb5dc2172966f2b2c9c2b25d46 SHA-1: aa76c2b20aa099b0db6fb051fe5f40dd1712c56b SHA-256: 1cdbb02effbc1acbcf1eb2099a426b93a28bd806763db343528582969e9d0ded
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://baarspo.ru/wix?keyword=adobe+dimension+crack+for+mac PDF link annotation
    • https://cdn.sqhk.co/pasivuzuke/uajchis/52612130105.pdfIn PDF document text
    • https://cdn.sqhk.co/vejuwipem/rhdgjjj/pefuwulozuvosip.pdfIn PDF document text
    • http://meine-gebuhrenfrei.com/vikings_football_game_todayorjgo.pdfIn PDF document text
    • http://mmuuue.space/28876031945fydo5.pdfIn PDF document text
    • http://senteber.site/46935236735ki5f3.pdfIn PDF document text
    • http://1xbets-reg.site/50710110044brv1e.pdfIn PDF document text
    • https://cdn.sqhk.co/kogujipubap/igqlege/red_alert_2_cheat_engine_money.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394068/normal_60240580a02eb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369164/normal_5fe3f7c2dbec3.pdfIn PDF document text
    • http://tersq.fun/56757322941ptgxx.pdfIn PDF document text
    • http://kompledom.com/asvab_for_dummies_20186soik.pdfIn PDF document text
    • http://gusedori.iblogger.org/the_birds_and_the_bees_short_story.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wukevuwotud.rf.gd/10191682639.pdfIn PDF document text
    • http://jutibigata.epizy.com/48907958894.pdfIn PDF document text
    • http://nabobaze.epizy.com/maze_runner_death_cure_netflix_country.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/56888470755.pdfIn PDF document text
    • http://navibizo.rf.gd/aadat_song_ki_ringtone.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/gooch_and_housego_annual_report.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_off0000d481.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD481 5328 bytes
SHA-256: a82a54901c579efbf1c479b99ad9011c4f2174eedbf8078e2ca438be5eb4df6c
font_01_sfnt_off0000e689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE689 9912 bytes
SHA-256: bd3824151b2b3a2d2edb14c0c36f3e9444c0f5fe7253a62f1b48db97e718f17d