Malicious PDF — malware analysis report

Static analysis result for SHA-256 dabf5a0e9cb6f33b…

MALICIOUS

PDF

83.1 KB Created: 2021-04-14 19:48:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 6ba5e3b2ebe999cbc1000b8915b9b698 SHA-1: e5e1d1dde6db2a0c0a077dbcd7b880cddbe21beb SHA-256: dabf5a0e9cb6f33bc42c1c2355b82a8abb956f9d99431dbd165d95adcc2c27bd
126 Risk Score

Malware Insights

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

The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to disposable domains, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains text related to a 'Power pressure cooker xl manual pdf', indicating a lure to trick users into downloading or interacting with malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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
  • 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://resalured.ru/strik?utm_term=power+pressure+cooker+xl+manual+pdf PDF link annotation
    • http://rozewevojalel.sportsontheweb.net/ahsan_ul_fatawa.pdfIn PDF document text
    • http://pofaduxiruk.getenjoyment.net/fallout_4_ps4_controller_pc.pdfIn PDF document text
    • http://mikovil.mywebcommunity.org/64819746570.pdfIn PDF document text
    • http://gebigulexejo.sportsontheweb.net/russian_english_military_dictionary.pdfIn PDF document text
    • http://gugezebaz.mygamesonline.org/bank_account_statement.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tepominofujemo.atwebpages.com/catechesi_tradendae_english.pdfIn PDF document text
    • http://tozuduxaxikagik.rf.gd/tivozikunawikumavodataziv.pdfIn PDF document text
    • http://lanosebezazov.onlinewebshop.net/wesatoxezerunizu.pdfIn PDF document text
    • http://vebusatoro.atwebpages.com/8752645496.pdfIn PDF document text
    • http://wawikoduvebakap.onlinewebshop.net/loctite_5188.pdfIn PDF document text
    • https://5e54824a-8208-41b0-8aeb-7c017e8cfb46.filesusr.com/ugd/f64db8_aabadb08a8ea47989acbb47f24759f3f.pdf?index=trueIn PDF document text
    • http://tosipasakuvil.myartsonline.com/sc_caste_list_in_telangana.pdfIn PDF document text
    • https://30cc9e9c-6145-4029-bfdc-d0561bdb3a10.filesusr.com/ugd/0dcf4b_e5c8e13443c04fcc9e574920d138164f.pdf?index=trueIn PDF document text
    • http://zewadajimenu.rf.gd/bengali_novel_free.pdfIn PDF document text
    • https://4b002d3c-a55f-42ce-816c-238f848e88a9.filesusr.com/ugd/3398cc_f8cc3b2d0c7e4d69b347d3400120c6f2.pdf?index=trueIn PDF document text
    • http://lofukikusi.epizy.com/sejatifubuwesobuzam.pdfIn PDF document text
    • https://a9d1d3ec-13fa-4b7e-abe1-abe2c2ba1301.filesusr.com/ugd/f83029_b078507826b64c499a1740bbe424ac2c.pdf?index=trueIn PDF document text
    • http://jasetaroxakil.rf.gd/jilojogoxetulug.pdfIn PDF document text
    • http://deroselewem.epizy.com/46340931828.pdfIn PDF document text
    • http://nekezoxugi.rf.gd/amrit_ki_barse_badariya_bhakti_song.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_off000104b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104B1 5528 bytes
SHA-256: fe1e215897b64d800d4570affd6ee1b2de8399ce50806634b3b8c019ebdf0d84
font_01_sfnt_off00011780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11780 11656 bytes
SHA-256: b97f109dcb5e76e4a0b322e42b303fb5fe38c8506f34898c43d3158b7c28fd26

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