Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e57414bab79da2e…

MALICIOUS

PDF

74.1 KB Created: 2021-02-21 03:51:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 8363bcb0cb0b61916e8480779b49b1ba SHA-1: a9d8b8583c397d463566d3c68fecefd05782a6bb SHA-256: 0e57414bab79da2e23ba1a6e0f76bdd7e3d63511c903a58fb635df9fe8e0b7ff
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a link farm for SEO purposes. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://bologen.ru/wix?keyword=ufc+208+live+stream+free+246 PDF link annotation
    • http://birjand.design/midepodisawjamm8.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/iajjijd/buy_real_followers_instagram_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/fegujajox/hcgj0jL/4d_live_wallpaper_2020_download.pdfIn PDF document text
    • http://burrrhey.tech/gavepekeseduxebatolkwpw.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/hf4heja/phoenix_suns_girl_video.pdfIn PDF document text
    • http://skidki-day.shop/starsector_fleet_guideeyonl.pdfIn PDF document text
    • https://cdn.sqhk.co/pixazizaze/jiRibja/star_trek_timelines_arena_strategy.pdfIn PDF document text
    • https://cdn.sqhk.co/molodomo/kYgcibS/netflix_party_alternative_iphone.pdfIn PDF document text
    • https://tajafakedebufu.weebly.com/uploads/1/3/1/4/131438499/bda300bccf05.pdfIn PDF document text
    • http://stickerrus.ru/consumer_reports_new_car_ratingsvw2yj.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/ugigg4g/download_for_pc_windows_10.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/jupoti/how_you_intend_to_keep_good_relationships_strong_and_healthy.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/journal_of_construction_engineering_and_management_template.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7AB 5360 bytes
SHA-256: e6bc47a3f737cdac2605c6c58e66d6748a52bb5e949b2031d9296ee7020521d2
font_01_sfnt_off0000e9ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9EF 10396 bytes
SHA-256: 3765649425c43fe90347f280e295999a2b5d59e361146e95d3c57ce4618e317f
font_02_sfnt_off00010d87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D87 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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