Malicious PDF — malware analysis report

Static analysis result for SHA-256 baed12abc166dcf8…

MALICIOUS

PDF

78.3 KB Created: 2021-05-07 20:43:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 359e37cc22e145b8e10db3a7418882d8 SHA-1: 112045eb01776857d2c202414d654476bb9c60b3 SHA-256: baed12abc166dcf8d689b5553120b0a609e06d4981831bdab89fd0a7dca36240
136 Risk Score

Malware Insights

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

The PDF contains a heuristically identified random URL, http://privateguardingserviceagainstdanger.site/kayaking_broughton_archipelago_trip_reportv2034.pdf, which is highly suspicious and likely leads to a malicious resource. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting a malicious site, aligning with phishing or malware delivery tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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://druttle.ru/strik?utm_term=can+you+play+minecraft+on+ps+vita PDF link annotation
    • http://suzofovolavuk.scienceontheweb.net/72118044477.pdfIn PDF document text
    • http://justiciaforjustice.com/84264980827kl58s.pdfIn PDF document text
    • http://numberoone.xyz/631703187852ggao.pdfIn PDF document text
    • http://wodunobogigav.22web.org/82721019126.pdfIn PDF document text
    • http://zilitimo.getenjoyment.net/anxiolytic_and_hypnotic_drugs.pdfIn PDF document text
    • http://gosejoligezo.iblogger.org/11842001663.pdfIn PDF document text
    • http://privateguardingserviceagainstdanger.site/kayaking_broughton_archipelago_trip_reportv2034.pdfIn PDF document text
    • http://mattelipsticks.site/mazilapfpzul.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://xodibux.rf.gd/88255322904.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/ruwol.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/55343060297.pdfIn PDF document text
    • https://s3.amazonaws.com/dosipive/commonlit_answers_i_have_a_dream.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/legezagosipibo.pdfIn PDF document text
    • https://s3.amazonaws.com/wikurixobelu/unlimited_power_by_anthony_robbins_audiobook.pdfIn PDF document text
    • http://pekarenov.rf.gd/calligraphy_fonts_guide.pdfIn PDF document text
    • http://vizepojuduw.rf.gd/88400935035.pdfIn PDF document text
    • http://pilunoteven.rf.gd/fifty_shades_of_grey_watch_online_full_movie_dailymotion.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/17781875671.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/pogugizebetazimoka.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/jevutekufepedowatafo.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_off0000e17a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE17A 5228 bytes
SHA-256: 2040a6709ccab15ce740d9b4384d7d033174816fff1d8f3ed06275fa2352da4d
font_01_sfnt_off0000f33d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF33D 12476 bytes
SHA-256: 679ed8409232b701db83382f01652781a4de75050718081a89e8779093024024
font_02_sfnt_off00011de6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DE6 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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