Malicious PDF — malware analysis report

Static analysis result for SHA-256 1914a9de5139fecf…

MALICIOUS

PDF

73.2 KB Created: 2021-03-17 16:40:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: d15adc29cd0d3b51e6ead8dec8cc9aec SHA-1: 1ac38661a11c5ed1374ded714cabce00719d180d SHA-256: 1914a9de5139fecf7024e515ff5543eed9bae37f1d1193f1a1419ff79fad0483
96 Risk Score

Malware Insights

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

The file was detected as malicious by a ClamAV signature and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to exploit users through a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/wix?keyword=track+1%25262+dumps+with+pin PDF link annotation
    • http://normal-id.com/goduviwemisupofuvswezp.pdfIn PDF document text
    • http://xajozixav.iblogger.org/autobiography_of_a_yogi_malayalam.pdfIn PDF document text
    • http://lewokutabu.iblogger.org/law_dictionary_translator.pdfIn PDF document text
    • http://cashbackmoney.info/16151307320qr440.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408996/normal_603deba0b1b81.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424646/normal_5ff1edead57cf.pdfIn PDF document text
    • http://summerita.fun/exerccios_sobre_transitividade_verbal_com_gabarito_8o_ano3l6dy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nawuvud/android_root_tool_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/tuzakifezara/fire_risk_assessment_template_for_school.pdfIn PDF document text
    • http://tasowotata.epizy.com/rarabupakebakapob.pdfIn PDF document text
    • http://suvemavukefejig.epizy.com/samsung_galaxy_s5_mini_network_problem.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/abhishek_name_cake_pic.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/dlink_dir605l_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/lulet.pdfIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/spss_amos_for_mac_free.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/kifadulelekijifaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85c3dd76-58a0-4d8e-a996-5a20541b1a76/caps_for_sale_lessons_kindergarten.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a70c174-0164-4ff6-ab87-2233342b0365/37723399817.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/caaab554-44a6-4058-bfdf-44d3c6ef8ddd/dish_network_local_channels_not_working_2020.pdfIn PDF document text
    • http://fiwipofel.epizy.com/auditoria_externa_iso_9001.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/35076885661.pdfIn PDF document text
    • https://s3.amazonaws.com/musokejixami/craftsman_yt_3000_engine_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/greenland_melting_ice_sheet.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_off0000e231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE231 4648 bytes
SHA-256: 7bc7e80aa5eceed5a0850d3abf83a4745d29cc05098d0e9b92be27d4e09ef18d
font_01_sfnt_off0000f213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF213 10564 bytes
SHA-256: d935e8746e4a41cd683fcbce200462526690f6ed02d7d9c6077bd2c4873f30a4