Malicious PDF — malware analysis report

Static analysis result for SHA-256 09ce9002c4717249…

MALICIOUS

PDF

77.2 KB Created: 2021-02-08 06:37:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 14c5cedb1fa9340182316153b22fcf00 SHA-1: a9bf5b012e79ad6ce2de9e121445279f01b433f2 SHA-256: 09ce9002c47172497380555dbe8c8a1ce4da84fcb5e14ae4db7166747ff9d2cd
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'https://leonvi.ru/aws?utm_term=lagu+addinu+lana+syubbanul+muslimin', which is a strong indicator of a phishing or malware distribution attempt. The document body, though heavily obfuscated, suggests a lure related to 'Lagu addinu lana syubbanul muslimin'. No scripts were extracted, but the presence of an external URI in a malicious PDF strongly suggests an attempt to redirect the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/aws?utm_term=lagu+addinu+lana+syubbanul+muslimin PDF link annotation
    • http://mixojixirofaj.iblogger.org/connotative_denotative_worksheet_middle_school.pdfIn PDF document text
    • http://tupakewufitid.iblogger.org/48713691384.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410020/normal_60001f8b97f5f.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
    • http://sajekitix.rf.gd/32655080870.pdfIn PDF document text
    • https://s3.amazonaws.com/genijusemu/vatomodudi.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/28486731282.pdfIn PDF document text
    • http://xeravujowa.epizy.com/aswamedham_songs_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/begenipaneli_net_apk.pdfIn PDF document text
    • http://vumazudu.rf.gd/symantec_dlp_incident_reporting_api.pdfIn PDF document text
    • http://nawezopekurid.epizy.com/18549625362.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/26762941938.pdfIn PDF document text
    • http://dogonuzema.epizy.com/pozowizirunera.pdfIn PDF document text
    • http://mafakizukizunof.epizy.com/5064513705.pdfIn PDF document text
    • http://nilikimapineti.epizy.com/humboldt_county_jail_reports.pdfIn PDF document text
    • http://junusesofuxog.rf.gd/79650734181.pdfIn PDF document text
    • http://pewetijugezam.rf.gd/gidirutuxasowoxuzad.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/37384610923.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/zajujivanojake.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
font_00_sfnt_off0000e30f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE30F 4808 bytes
SHA-256: c02e1c275e23b0f3b99b805c1474d8301886a8bd2086fc2780a3fc880d814579
font_01_sfnt_off0000f33d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF33D 11092 bytes
SHA-256: 9ef644e6ab8add370a1f5410fcf82b1cb8cbfca34e7d6cb37786e431eb50b0d0
font_02_sfnt_off00011755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11755 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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