Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df12c624f134e9e…

MALICIOUS

PDF

81.7 KB Created: 2021-03-08 12:07:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: e975e00622d14dd21d31008684b03de6 SHA-1: 17cabc8e59fdb8813ad07ca09e4d81b520fc9332 SHA-256: 6df12c624f134e9e4fbd216b6f4ef5a2df32fbf032f8e164752f46c318429c8e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to reference technical terms, suggesting a lure to trick users into clicking the malicious link.

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://soxebez.ru/123?utm_term=android+studio+avd+manager+disabled PDF link annotation
    • https://milelujip.weebly.com/uploads/1/3/4/8/134861654/f650b3e8dd.pdfIn PDF document text
    • https://cdn.sqhk.co/sekigizakeku/0ItiiNM/bexafaweginigoxave.pdfIn PDF document text
    • http://wuwodijutorem.iblogger.org/muvibawino.pdfIn PDF document text
    • https://zizovotitimojuv.weebly.com/uploads/1/3/2/7/132712514/bejuredegoto_loxapoxokiveruf_zowuxisobez_kejodibot.pdfIn PDF document text
    • https://cdn.sqhk.co/suxupijisajo/euPgcia/18647329741.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/jdFhfgg/skull_wallpaper_hd_for_iphone_5.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/pugomonapoxuxe/kaco_inverter_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/2013_nissan_nv_3500_owners_manual.pdfIn PDF document text
    • https://def26600-86c9-4442-a738-094ddf2992d1.filesusr.com/ugd/eb5a6a_8a42bb2081d54d8ca6adcd9068d0501a.pdf?index=trueIn PDF document text
    • http://jetelusaxidu.epizy.com/bmp_format_image_file.pdfIn PDF document text
    • https://2489a575-72f7-492f-b117-28cfe4a4d2a3.filesusr.com/ugd/d81705_5cced4cc04754076a11199146f7c320e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff352331-10b9-4fdc-b7b2-c9bc5a0c4b88/79863565509.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7069d8b9-c928-4721-ae70-f7b7e12903e9/84794367593.pdfIn PDF document text
    • https://a6f18165-9bfd-46c9-8f51-0ab50cd0b687.filesusr.com/ugd/265c7a_d20ce56004d84c809588505bda943cc7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nafamaragisek/wogerukoravaxosikopekit.pdfIn PDF document text
    • http://xisapedugifado.epizy.com/93109291652.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8179daa0-76ef-4a2d-bb94-dc874e430063/44179475053.pdfIn PDF document text
    • https://s3.amazonaws.com/xukirizugukugi/passive_voice_present_perfect_exercises_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/fifadiginu.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_off00010173.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10173 5332 bytes
SHA-256: 5bb9bef93d4575c6cf7048fe2d5fe6c9e0a6996faeabbfdf4dbe7cc89e3d748d
font_01_sfnt_off00011380.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11380 11184 bytes
SHA-256: 6c1efb995b24d90e2cbdb54bef3befb54fcc69f324f8856d833c298b4c4bbdcc

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