Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ae3b34061f20ab6…

MALICIOUS

PDF

79.6 KB Created: 2021-02-17 01:26:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: fe1e4293713e7b4c748088df8ed615eb SHA-1: 0357f6ed243140930b6f4fef146f772c17a8e5ad SHA-256: 3ae3b34061f20ab60e1a75ca85399f6f0376cc004cbb00de0bc6e1712223d116
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://seumenha.ru/wix?keyword=spanish+3-4+review', suggesting a phishing or credential harvesting attempt. The document body, though heavily obfuscated, appears to contain metadata related to its creation, but no direct instructions or lures are discernible.

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/wix?keyword=spanish+3-4+review PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403533/normal_6011485804914.pdfIn PDF document text
    • https://cdn.sqhk.co/sodelaranu/vkjeGib/49973161189.pdfIn PDF document text
    • http://luchdobro.site/guru_mann_shredded_next_level_workout3e34f.pdfIn PDF document text
    • https://cdn.sqhk.co/juvexafi/jfjiJhg/game_maker_studio_1_download_crackeado.pdfIn PDF document text
    • https://cdn.sqhk.co/nobixapo/ifJOhgl/kaxotagakowovujasuk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386330/normal_5ffae818aac69.pdfIn PDF document text
    • https://cdn.sqhk.co/xefilelo/0Phjn0p/free_robux_hacks_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/julukimesof/hahdp00/plants_vs_zombies_xmas_mod_free_download_mac.pdfIn PDF document text
    • https://cdn.sqhk.co/foseziwate/cjehjje/zombie_riot_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/sarunasol/vgcgfOg/business_management_certificate_unisa.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/gcHjuig/activity_launcher_tricks.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408004/normal_60122adecd90d.pdfIn PDF document text
    • http://harmony-market.ru/jegaluneytt38.pdfIn PDF document text
    • https://cdn.sqhk.co/zowolanazew/jgd49hd/5_day_weather_forecast_apex_nc.pdfIn PDF document text
    • https://cdn.sqhk.co/vopupevomate/9ygjija/xonix_game_for_android.pdfIn PDF document text
    • http://flowerport.store/ndis_assistive_technologies_and_consumables_guidexhxpu.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/zasepo/gikajojuzukofemoluxus.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_off0000f9a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A5 5416 bytes
SHA-256: 55a673be168dd232caeac3769a780c9278305c6ed8fba90c6775773649ac0132
font_01_sfnt_off00010c29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C29 10996 bytes
SHA-256: cadc692532b46dfa95b71fd80162987e029531a28feaf058c068bd1d97558e8d