Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa14f9d05346d61…

MALICIOUS

PDF

217.1 KB Created: 2021-01-27 12:47:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 909ae16aa5b2c86adf71385869c46793 SHA-1: 2447dbf0537be861fb7cc36d3e6afd8d93471540 SHA-256: faa14f9d05346d6158e4dbb178a6d94e2c625b8a494a608536e121190f7466c9
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URL that mimics a search result for 'Kubota bx2200 parts manual pdf', indicating a lure to a potentially malicious website. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to external content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/123?utm_term=kubota+bx2200+parts+manual+pdf PDF link annotation
    • http://stavki.link/4737159079wi1jr.pdfIn PDF document text
    • http://50offstore.pro/tooltip_report_page_power_bi7by35.pdfIn PDF document text
    • https://jawoxaze.weebly.com/uploads/1/3/0/9/130968973/gesufoz.pdfIn PDF document text
    • http://vsedlyatebya.xyz/89988043073d5nhg.pdfIn PDF document text
    • http://stassikorskyi.com/43080825788fkogj.pdfIn PDF document text
    • https://bukowimulo.weebly.com/uploads/1/3/1/4/131407836/2317988.pdfIn PDF document text
    • http://purpless.vip/tubanitovuxuwawujig0ai2f.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/simujix/mongodb_aggregate_function_format.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/telijumusagadibeberav.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/fitting_workshop_report_conclusion.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/supogoguzaga.pdfIn PDF document text
    • https://s3.amazonaws.com/vebenok/22801098623.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/american_pie_series_dual_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/age_of_empires_2_expansion.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/service_desk_technician_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zedudo/rumelawepedumo.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/tesipazowatoxekirutu.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
stream_004_off0002a8ee.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A8EE 42728 bytes
SHA-256: 45db2a75512c2931214f019b31fc3de4d854516b5e465f43eb970591258b5720
font_01_sfnt_off00031c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C50 5640 bytes
SHA-256: e3e089d2315d7730e66ebbedd297a71bd91163647b85041176e621a13fb64933
font_02_sfnt_off00032f6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32F6C 11484 bytes
SHA-256: 17bd548a340a71b5d667f76b3d3d94d758b5e7533e2ac9f859b6b99587a9bcca

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