Malicious PDF — malware analysis report

Static analysis result for SHA-256 f71ce29b791ac312…

MALICIOUS

PDF

75.9 KB Created: 2021-02-14 15:53:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 66aa30c584d1867cd9264ab57faf2b6d SHA-1: 67fd499d64cdc411d4de6107c37557b018809bfe SHA-256: f71ce29b791ac3128c5d8fca2a311949f74d7a8b9c252e2a34bbb4583dfad523
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that mimics a login page for a 'Mother Earth News Garden Planner', a common phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to harvest credentials or serve a secondary payload. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/123?utm_term=mother+earth+news+garden+planner+login PDF link annotation
    • https://cdn.sqhk.co/xaleteser/gchghji/57173354373.pdfIn PDF document text
    • http://latencfsrt.space/74833911097vjqlg.pdfIn PDF document text
    • https://cdn.sqhk.co/fukefipemuw/KE5whif/carlcare_infinix_warranty_check.pdfIn PDF document text
    • https://cdn.sqhk.co/lepowabog/MGYMgfQ/crackle_spray_paint_lowes.pdfIn PDF document text
    • https://cdn.sqhk.co/zitedefew/ogeNidw/91465763825.pdfIn PDF document text
    • http://good-production17.site/armed_forces_medley_sheet_musiczkk80.pdfIn PDF document text
    • https://cdn.sqhk.co/bexamajuw/jijih8V/cross_bridge_cycle_starts_when.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/cwjgih4/nature_sounds_birds_and_water.pdfIn PDF document text
    • https://cdn.sqhk.co/romemanir/VvZieic/zikakumonimejisovema.pdfIn PDF document text
    • https://cdn.sqhk.co/ketusugedi/fNighcO/50369902562.pdfIn PDF document text
    • https://cdn.sqhk.co/kezixowog/xia0gi3/xoladijolizenap.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/kikunojulejuj/nissan_armada_2008_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lazesej/14535421130.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/ceyx_and_alcyone_story.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/76998113710.pdfIn PDF document text
    • https://s3.amazonaws.com/ximupuv/buroxipozojado.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_off0000eb68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB68 5316 bytes
SHA-256: 546228e976d1cf278330fc5afe5b088f15ef2fdd5387f8721f192710e98b3066
font_01_sfnt_off0000fd95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD95 10964 bytes
SHA-256: da672526dcc03536245c33d2cbb72dc16dedc314c8a2ec7c34847103cc7b9fd1

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