Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa9543e506ec34a2…

MALICIOUS

PDF

78.0 KB Created: 2021-05-24 09:43:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 0fe5c0b33b6af91aa48dc72fb604fac3 SHA-1: dadf2777718814bb9619d1500a329c5cce9a25b8 SHA-256: aa9543e506ec34a2fafd3704d7f4b494294dcec446f5fbe00be1b68c8389e855
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. The PDF contains a large number of external links, a technique often used to create link farms for SEO manipulation or to direct users to malicious sites. While no scripts were explicitly extracted, the presence of embedded URLs and the overall structure suggest an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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 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.
  • 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/strik?utm_term=druidcraft+tarot+book+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4367665/normal_5fc66c6043ff1.pdfIn PDF document text
    • https://dawozonejuveru.weebly.com/uploads/1/3/4/4/134489779/kewusivukobuzi_galujilo.pdfIn PDF document text
    • https://miremewokar.weebly.com/uploads/1/3/0/7/130738658/340548.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465274/normal_604bbba82d2ac.pdfIn PDF document text
    • https://luvikexixof.weebly.com/uploads/1/3/4/4/134481561/2689697.pdfIn PDF document text
    • https://kewakovek.weebly.com/uploads/1/3/4/4/134467638/2986197.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505363/normal_603e946369d3a.pdfIn PDF document text
    • https://kosazalosir.weebly.com/uploads/1/3/2/8/132815054/bedinezelokuratepem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/boss_dd_20_review.pdfIn PDF document text
    • https://s3.amazonaws.com/badodemebo/lubawafo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a44238a-72fc-43bd-8b99-e9ba3d4548af/warcraft_3_cheats_custom_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a18a7f45-ebbd-4b5e-9d29-4b869376f422/how_to_look_up_cartier_glasses_serial_number.pdfIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/bopuz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/150046e2-2ed5-4d74-96c4-63a62b9c09ec/how_to_pair_bose_soundbar_remote_with_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/2018_fantasy_football_ppr_auction_cheat_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adb23c3d-8035-4b5e-badb-e373b40533da/a_series_of_unfortunate_events_movie_vs_tv_show_reddit.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/how_to_improve_writing_skills_in_english_for_ielts.pdfIn PDF document text
    • https://s3.amazonaws.com/xepululejiwof/red_and_white_chunky_platform_heels.pdfIn PDF document text
    • https://s3.amazonaws.com/dazawojob/what_is_the_best_solar_watch.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/95317510193.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/kabir_bengali_movie_hd_720p.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47b15852-573c-4b20-9a59-d9613451664b/la_riqueza_y_la_pobreza_de_las_naciones_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99331918-8583-49e3-a12b-02dcfab62fcd/xanutodojuta.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_off0000f368.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF368 5144 bytes
SHA-256: 498d94a2b27d8acad6388b7cca10881fd6d5f05e94655e8949f6c8812a005669
font_01_sfnt_off000104fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104FB 10928 bytes
SHA-256: 36f916dfcb21e4af580e056033cc7451d7eda4aa021ed82be8f5c812505bf93b

Open this report in the interactive analyzer, or submit your own file for analysis.