Malicious PDF — malware analysis report

Static analysis result for SHA-256 862c2b05ed94719d…

MALICIOUS

PDF

75.9 KB Created: 2021-04-02 00:37:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 70b5a494aecd42771ba4b172a09a7e1c SHA-1: 557ffa0bba9f8442ebfa77bd279a04e478f89f71 SHA-256: 862c2b05ed94719d0345072e7b355e7dc7140ab735c97e9a085101347285c426
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://golowaki.ru/award?keyword=le+pluriel+des+adjectifs+de+couleur+exercices+pdf PDF link annotation
    • http://cherrypimp.online/buxofirogumikatotan3tm.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407986/normal_602f5d8a66cff.pdfIn PDF document text
    • http://ndfnasg.xyz/bollinger_band_breakout_chartinkcu4hm.pdfIn PDF document text
    • http://wegansit.space/xatofanawewovekulipifvsfl.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450516/normal_5fc7d38d3bd07.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450141/normal_5ffdff2fc1cea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486036/normal_5fdeeae4df74f.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/senodiw/create_android_app_without_coding_offline_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/nafamaragisek/78121049738.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e5b9aed-2dd7-44b3-9357-6683a3a08d4b/16598511685.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/58573179131.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/sinijipujuranegibuwukevo.pdfIn PDF document text
    • https://s3.amazonaws.com/xalasawu/gifisijodunoxiwew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/88dd47e2-ea67-4343-b71a-a6f078dd9111/minecraft_windows_10_free_download_full_game.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/lusifinamemimopozi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/756e5c48-0056-4b77-8ad2-522a14ecc6e4/dujolobajafakap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ba141be-220f-48c8-911c-220ca0ae4680/everstart_maxx_battery_charger_instructions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51a8d32c-e582-4e6d-8f8e-01314bf29b7b/55371630355.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b057744e-0a16-4bb9-b097-9366e0a91058/what_order_to_watch_marvel_movies_disney_plus.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_off0000dd82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD82 5236 bytes
SHA-256: 0a0994cd64ed09f66857718870c265ef18d6bec8a056811568b4863fa2539a4e
font_01_sfnt_off0000ef62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF62 1680 bytes
SHA-256: 6cd8f23f87afeb4a04e8005758dc5fe565862c3b6598e76d01fc3e7d80c96a4d
font_02_sfnt_off0000f7b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7B2 12440 bytes
SHA-256: 790c71aca4cfba032d7503578a8a2ac108218e352e00950979a2f33f33203fcf