Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0b6c9d06aeec10c…

MALICIOUS

PDF

77.8 KB Created: 2021-03-24 11:44:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1aedd4bb9c9e455c73295231af6bd6e SHA-1: de02cd79ee99aadcab7c336243762a0794fd9534 SHA-256: e0b6c9d06aeec10c6d608eec49a3f40db9550ba62678d6fb6cbf2a379a1ab7f1
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to 'https://seumenha.ru/strik?utm_term=the+andromeda+strain+book', suggesting a phishing or malware distribution lure. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate an attempt to redirect the user to a malicious site, likely as part of a spearphishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/strik?utm_term=the+andromeda+strain+book
    • http://jovepodixowofow.mygamesonline.org/90635458612.pdf
    • https://cdn.sqhk.co/povewepalu/1V0UOK7/zizeban.pdf
    • http://beririka.scienceontheweb.net/vmware_interview_questions_and_answers_for_freshers_free_download.pdf
    • https://cdn.sqhk.co/noviraxat/Ocqhaii/61357895335.pdf
    • https://cdn.sqhk.co/buzodafevuj/ieLxjeD/48226881810.pdf
    • https://cdn.sqhk.co/rojarimeg/jdiawjd/toolbox_for_minecraft_pe_edition_ios_download.pdf
    • https://cdn.sqhk.co/nawamuzimosu/agibji4/piresovurikugivurepafab.pdf
    • http://rixorevu.getenjoyment.net/32577256925.pdf
    • https://cdn.sqhk.co/kuderoxuz/rhgiJhh/73985245044.pdf
    • http://bukupiduge.mypressonline.com/lord_of_the_rings_cast_elf_queen.pdf
    • https://cdn.sqhk.co/sebixodof/haujcS1/92600271628.pdf
    • https://cdn.sqhk.co/nikajovefer/ghJSjsQ/vimibabafemim.pdf
    • https://cdn.sqhk.co/maxanogefo/kieRhjj/riwewawanedunefufu.pdf
    • http://galosidijixiwu.mypressonline.com/burgerking_coupons_august_2020.pdf
    • https://cdn.sqhk.co/tivinarafuvu/07hgghE/78277253599.pdf
    • https://cdn.sqhk.co/wezupobuwab/4ghhWhe/hollywood_action_movies_2015_you_tube.pdf
    • http://nupesupo.mypressonline.com/vojudosasevomenunapavoli.pdf
    • http://warupipujamoru.sportsontheweb.net/rexuxidajinuwupinugago.pdf
    • https://cdn.sqhk.co/bogebumemilo/vibBhc9/zanajowamov.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tesotiwapax/characteristics_of_entrepreneurship_education.pdf
    • https://s3.amazonaws.com/kotenu/latest_hollywood_movies_in_tamil.pdf
    • http://zitasixan.atwebpages.com/twilight_breaking_dawn_part_2_soundtrack_cd.pdf
    • https://s3.amazonaws.com/xalasawu/english_grammar_personal_pronouns_worksheets.pdf
    • http://gixufedexakav.atwebpages.com/livawijokaba.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3ea.bin
d00360a70a5887419e7b8655914b11aba4da345a93b981713f0057185e495b5d
pdf-font-stream PDF embedded font (sfnt) at offset 0xF3EA 5188 bytes
font_01_sfnt_off0001055b.bin
bf109a06666650df3e3c709733ec7fd9fd632d320870366b743ba3f7a47a7669
pdf-font-stream PDF embedded font (sfnt) at offset 0x1055B 10692 bytes