Malicious PDF — malware analysis report

Static analysis result for SHA-256 334fc585326f27fa…

MALICIOUS

PDF

79.6 KB Created: 2021-03-22 09:55:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 1b1acf64a9e477c5d021d81a4276a1ad SHA-1: 223d60a3a9fc56f12fb446b1f518a439b9d6e25f SHA-256: 334fc585326f27fa4531e403a6338972bafdc6b90431608d3d643191967ac6a1
164 Risk Score

Malware Insights

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

The PDF document contains numerous external links, flagged as a link farm, and is identified as a phishing lure. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent. The document's content, though partially garbled, suggests a lure related to 'Icici bank education loan application form', aiming to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://lozipotod.ru/award?keyword=icici+bank+education+loan+application+form+pdf PDF link annotation
    • http://differencecheats.net/how_to_structure_an_essay_about_yourselfu5nf0.pdfIn PDF document text
    • http://greatholl.com/55121530398qgoru.pdfIn PDF document text
    • http://profapp.pro/xujeziwisulakopafq9k.pdfIn PDF document text
    • https://fazafunapogaz.weebly.com/uploads/1/3/4/1/134131986/dutoned.pdfIn PDF document text
    • https://buzelobuledu.weebly.com/uploads/1/3/1/3/131397981/demujawikubize_teteseno_rodifufekuzudin.pdfIn PDF document text
    • https://fosovumukudire.weebly.com/uploads/1/3/4/2/134235423/kavezuvow.pdfIn PDF document text
    • http://betmoy56.com/18635218734pbh4.pdfIn PDF document text
    • http://shlifovka-pol.website/zavenuma97s.pdfIn PDF document text
    • http://dressnbuy.com/11277071028mkrzb.pdfIn PDF document text
    • https://kagepejipewabo.weebly.com/uploads/1/3/4/8/134871264/b420fe51b06.pdfIn PDF document text
    • https://zezevibowavaki.weebly.com/uploads/1/3/4/8/134854125/zesurufenerum-sawasejotijadas-diboru-nedufuwebade.pdfIn PDF document text
    • http://d-youtube.com/356967345097v56h.pdfIn PDF document text
    • http://all-system7.xyz/beat_tiles_rhythmatic_tap_apk6vjak.pdfIn PDF document text
    • http://anrostore.ru/egyptian_symbols_and_their_meanings3z72l.pdfIn PDF document text
    • http://trokot-online.xyz/613855853820mgp4.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/titugome/12310265508.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/can_i_pass_cfa_level_1_in_2_months.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/wononivubiwililor.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/21583352186.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/24petwatch_claim_form.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/hr202l_humidity_sensor_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/dazawojob/94119506538.pdfIn PDF document text
    • https://s3.amazonaws.com/sabobenuwe/polaroid_frame_hanging_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_off0000eb35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB35 5144 bytes
SHA-256: 317798d9986b46faf487b63a6f2a458de393302b6455df776db680fc53d0b008
font_01_sfnt_off0000fc90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC90 11076 bytes
SHA-256: d2b777c1f08bacee6df7f6d748c27c974f14eb8a90aae17ad45e8e329fe2239f
font_02_sfnt_off0001223f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1223F 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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