Malicious PDF — malware analysis report

Static analysis result for SHA-256 912af324c9fc291c…

MALICIOUS

PDF

83.0 KB Created: 2021-02-11 10:13:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 07d6d409f43adc32b2d05260ed642142 SHA-1: 6cd365fcb923bc0ef301d3965371e8c6d95545e2 SHA-256: 912af324c9fc291c54827c63f8eb8969b193fc316d84b53e1d29bae85e6f399a
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs, one of which is presented as a lure for free wedding invitation templates. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site for further exploitation.

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://seumenha.ru/aws?utm_term=free+wedding+invitation+background+templates PDF link annotation
    • https://xafinuwexedigu.weebly.com/uploads/1/3/1/3/131379324/2799948.pdfIn PDF document text
    • https://pusenosate.weebly.com/uploads/1/3/5/3/135347115/xisudivaf.pdfIn PDF document text
    • http://legendarycraft.ru/bacaan_surat_yasin_dan_tahlilwshkt.pdfIn PDF document text
    • http://natiral.space/44695673897bqpyi.pdfIn PDF document text
    • http://prizinsta24.space/brawlhalla_cross_platform_2019d9kuo.pdfIn PDF document text
    • https://ralutadepijug.weebly.com/uploads/1/3/5/3/135305627/roxow-sapida-vevipatoze-totujetixezeduw.pdfIn PDF document text
    • http://tryse.xyz/australian_jobs_report_201971ie0.pdfIn PDF document text
    • http://gagezejiwakale.iblogger.org/edtpa_planning_commentary_elementary_literacy_template.pdfIn PDF document text
    • http://gravkamen.ru/ruwurerf3bd3.pdfIn PDF document text
    • http://zootime.store/chess_game_online_play_plongaofm17.pdfIn PDF document text
    • http://cabinetshub.xyz/59973789171oysna.pdfIn PDF document text
    • http://cmbespaceclient.xyz/protected_areas_actlea0y.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://woxepakaj.epizy.com/co_processing_guidelines_cpcb.pdfIn PDF document text
    • https://s3.amazonaws.com/xakapudakadu/yahoo_messenger_chat_rooms.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/justice_league_dark_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/zojowulun.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/35131781548.pdfIn PDF document text
    • http://xotesevuves.epizy.com/vulolivojipexolejilex.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/posivedewefakut.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_off0001041d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1041D 5704 bytes
SHA-256: 52ac1913435ed342e3c71f53cc499ac05c85b1ee0958edbc08f2566d4ae4cc42
font_01_sfnt_off0001178e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1178E 11420 bytes
SHA-256: 3128c68c35b6571d1f73efbd226a0cda43c32eeb5e4a9c24a899488af40963df