Malicious PDF — malware analysis report

Static analysis result for SHA-256 10481ae665356880…

MALICIOUS

PDF

81.7 KB Created: 2021-06-09 15:48:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a8ce0c5d41c90251b1d934930a460508 SHA-1: b9f29e403a66061741781bbd3a5b11d9443e8572 SHA-256: 10481ae665356880ec6452c1829a30b6c0b419094dc16d5851bdff3585ac0bdb
96 Risk Score

Malware Insights

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

The sample is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, which is likely used to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to religious practices to mask its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • 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://laborke.ru/pbw?utm_term=how+to+pray+the+rosary+after+someone%2527s+death+in+spanish
    • https://cdn-cms.f-static.net/uploads/4387709/normal_602423130776d.pdf
    • https://cdn-cms.f-static.net/uploads/4411218/normal_60b80e356b71f.pdf
    • https://cdn-cms.f-static.net/uploads/4479226/normal_5fd923aad8d18.pdf
    • https://cdn-cms.f-static.net/uploads/4475209/normal_6041332fad2ae.pdf
    • https://cdn-cms.f-static.net/uploads/4471114/normal_5fd2502866d6c.pdf
    • https://cdn-cms.f-static.net/uploads/4418746/normal_6009c776eedfd.pdf
    • https://static.s123-cdn-static.com/uploads/4495973/normal_600835b256152.pdf
    • https://cdn-cms.f-static.net/uploads/4425217/normal_6054c7b7286ca.pdf
    • https://static.s123-cdn-static-d.com/uploads/4453729/normal_60b3776cb47f0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/d7d00d05-0c83-44ce-99cd-4e69b00b688d/wujagarukuxuwibumozizi.pdf
    • https://uploads.strikinglycdn.com/files/f72d39bd-68c4-4ef1-876d-ed1464ee2db9/what_is_fire_biblically.pdf
    • https://uploads.strikinglycdn.com/files/3bf609db-06c6-4e24-b085-4e600171c6e0/nail_salons_in_baton_rouge_open_on_sunday.pdf
    • https://uploads.strikinglycdn.com/files/386ab2e3-5fe5-4fc3-b093-16c798c681fa/gta_online_quick_money_solo_2021.pdf
    • http://kufujibumufa.pbworks.com/f/fleischner_society_guidelines_for_pulmonary_nodules.pdf
    • http://debitagemi.pbworks.com/f/how_much_does_the_average_swing_trader_make.pdf
    • https://uploads.strikinglycdn.com/files/cc1225d1-4242-464e-807f-0be661239c43/koroxuzobijodimalev.pdf
    • http://fodorafirig.pbworks.com/f/9.3_properties_of_rectangles_rhombuses_and_squares_worksheet_answers.pdf
    • https://uploads.strikinglycdn.com/files/8cfbd32e-28fa-4da3-8aba-716228ef2d78/what_macros_should_i_eat_for_lean_bulking.pdf
    • https://uploads.strikinglycdn.com/files/cf37ee9c-5fdf-448c-ae87-d0a2593eeb43/descargar_libros_de_francisca_serrano.pdf
    • https://uploads.strikinglycdn.com/files/a6b2be56-e09c-405f-9d7a-59c18cf65e01/what_does_gnosis_mean_in_hebrew.pdf
    • http://mujefapufefi.pbworks.com/w/file/fetch/144607458/hossana_marco_barrientos_letra_y_acordes.pdf
    • https://uploads.strikinglycdn.com/files/399c9acf-f0f3-404e-84f6-043740563941/conclusion_and_recommendation_in_ojt_narrative_report.pdf
    • https://uploads.strikinglycdn.com/files/a15ea979-28aa-4e6e-9870-7bb1f7c64ccf/what_is_red_box_cards_against_humanity.pdf
    • https://uploads.strikinglycdn.com/files/f8aee4f4-5128-430f-94af-c605eab5b1db/wolilejajisabebaxojamomox.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f292.bin
5f3f4eef095357143623393356e6581a7bd749d283fc4929993e037788bf80d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF292 5224 bytes
font_01_sfnt_off00010447.bin
cc050e3cecec90ed7a3810541873ff66d874bbb0bfad058e4aa84e9586b2bb43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10447 11084 bytes
font_02_sfnt_off000128e1.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x128E1 4324 bytes

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