Malicious PDF — malware analysis report

Static analysis result for SHA-256 d04bedd846dd4fd0…

MALICIOUS

PDF

81.8 KB Created: 2021-03-06 14:14:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 176202827f4416af7a672721944df4eb SHA-1: 25742d59d35ee22b136bc43dc87a91bae4a5aac4 SHA-256: d04bedd846dd4fd07974ce9c2c451609293ae2e26d6b5411496b0160884bc8bb
124 Risk Score

Malware Insights

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

The PDF file contains numerous embedded URLs, with a primary lure related to syncing an Xfinity TV remote. Heuristics indicate it functions as a link farm on disposable hosting, directing users to potentially malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8572

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
  • 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
  • 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/award?keyword=how+to+sync+xfinity+tv+remote PDF link annotation
    • https://vuwezamubom.weebly.com/uploads/1/3/0/8/130814902/gonubikemuzo.pdfIn PDF document text
    • https://cdn.sqhk.co/soziwariru/gcpUhgc/39195014925.pdfIn PDF document text
    • http://rgtuitp.ru/492105274866inin.pdfIn PDF document text
    • http://idealicacolumbia.site/golf_buddy_voice_2_vs_bushnell_phantom8pbp8.pdfIn PDF document text
    • http://kino-vezde.ru/zalaxijulojazoxf0n7l.pdfIn PDF document text
    • https://renudufodajofi.weebly.com/uploads/1/3/4/8/134884992/ae1b390c2.pdfIn PDF document text
    • https://cdn.sqhk.co/gabironero/ij09Lha/zezoku.pdfIn PDF document text
    • https://cdn.sqhk.co/fumodolanes/j1jf9jj/50030358916.pdfIn PDF document text
    • https://cdn.sqhk.co/papusabefo/ghboDgg/citizens_fcu_mobile_banking.pdfIn PDF document text
    • http://twirlini.com/85278721419onpzw.pdfIn PDF document text
    • http://micrometerdigital.xyz/magic_bullet_theory_of_mass_communication_was_evolved_by83wif.pdfIn PDF document text
    • https://cdn.sqhk.co/polidupokasu/aojfehd/lojezilapid.pdfIn PDF document text
    • https://cdn.sqhk.co/vilonunufuk/chgieej/kanemuduposafas.pdfIn PDF document text
    • https://cdn.sqhk.co/limiwebu/3lMXgjY/five_little_monsters_jumping_on_the_bed_book.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/pobixedele/non_small_cell_lung_cancer_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/wolawatin/nubanesova.pdfIn PDF document text
    • https://591e60e9-54e8-4b06-a9a7-f2e0522969d0.filesusr.com/ugd/1fd4b7_fbb84c0164274103956075e7940776fc.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/27537586400.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/health_canada_vigilance_adverse_reaction_reporting_form.pdfIn PDF document text
    • https://cad90261-f038-4e8a-b384-2e0e37e6cb8c.filesusr.com/ugd/4c4e45_f79a4b5ec04d4b968f21fbf47a92bce5.pdf?index=trueIn PDF document text
    • https://1cf095b7-1d29-4152-b82c-7733cf7ba0c7.filesusr.com/ugd/c1de29_ade7a23a46a0456894ca954c297cc3f2.pdf?index=trueIn PDF document text
    • https://1a441fb4-51dd-4528-a053-eb59ff664e18.filesusr.com/ugd/43d9d5_41cc137eb4094b56b9aecd1e00e6d299.pdf?index=trueIn PDF document text
    • https://69868269-04aa-4a0d-8379-1371762fd556.filesusr.com/ugd/d8beff_5aee3f8b4aef4a6fa8eadd47786f263d.pdf?index=trueIn 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_off000106a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106A6 4856 bytes
SHA-256: ad4261e5e1e770397bb979a7506748b15ec72513886d46b5f5686772ad938a9b
font_01_sfnt_off0001171f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1171F 10332 bytes
SHA-256: da030f2d7c2b8f9ba41860f4576bfd937439c70051059bdc154059d378432b57
font_02_sfnt_off00013a7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A7F 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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