Malicious PDF — malware analysis report

Static analysis result for SHA-256 5154fb7de2375e02…

MALICIOUS

PDF

93.8 KB Created: 2021-03-15 08:02:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 16ccbdf9b05888871aa749926c6ddff0 SHA-1: 700f7029a8599e6286303e539c86d4b2ad8ce22e SHA-256: 5154fb7de2375e02f4ecc26ffdb0f365abc2b698cac4d330800e6d1f15c06f4f
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a suspicious domain, identified as malicious by ML classifiers and ClamAV. The presence of the URI suggests an attempt to redirect the user to a malicious site, likely for phishing or to download further malware. No scripts were extracted, but the PDF structure and embedded URI are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://xezojetit.ru/wix?keyword=ganthet+and+said PDF link annotation
    • http://goldenframecollision.com/gacha_life_edits_boy_and_girlznodc.pdfIn PDF document text
    • https://cdn.sqhk.co/sabumijobude/ppgjyhi/tanaji_movie_theme_ringtone_download_pagalworld.pdfIn PDF document text
    • http://cmbespaceclient.xyz/vokijaguvenakonigizaxim8vne.pdfIn PDF document text
    • http://richteam.site/chudi_jo_khanki_new_song_ringtoneab41f.pdfIn PDF document text
    • http://waystep.site/masterbuilt_sportsman_elite_smoker_recipesabwfh.pdfIn PDF document text
    • http://3bki.ru/sports_event_management_systemvtw6i.pdfIn PDF document text
    • http://trokot-newshop.online/how_enter_bios_on_hp_laptop3u1pg.pdfIn PDF document text
    • https://cdn.sqhk.co/sozodumupof/aKzMifa/vikaka.pdfIn PDF document text
    • http://business-open.online/vobenagulexedosasodezawavwff6.pdfIn PDF document text
    • https://cdn.sqhk.co/liregevo/kIKzjeI/fulaf.pdfIn PDF document text
    • https://cdn.sqhk.co/bulunazi/bgf1jdu/xirova.pdfIn PDF document text
    • http://trickyturkey.com/73212939980zfsf4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://roxonotagake.rf.gd/bundeslnder_karte.pdfIn PDF document text
    • http://pizoxuwa.epizy.com/canon_mx430_wia_driver.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/59923654203.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/vekol.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/free_audio_bible_in_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/dijunife.pdfIn PDF document text
    • http://nabunuwo.epizy.com/38132824109.pdfIn PDF document text
    • https://s3.amazonaws.com/latufenaw/23893296276.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/dewotaga.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/audiosurf_android_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/rukozolovedipi.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_off00013303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13303 4816 bytes
SHA-256: 5f6e52e9d37ad9d45bbbe71f84846aad78d9d6f6a35b272cb30772d6c11bfa3b
font_01_sfnt_off00014360.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14360 11348 bytes
SHA-256: 2a05455370740f974b749d47600ce00e8d085e85e8a6590786347bf6a1ade8b3

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