Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd6599e6a81db6f3…

MALICIOUS

PDF

91.6 KB Created: 2021-02-04 06:54:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 9deeb279a36d9adae8b09c2b0ad7d603 SHA-1: 2ff1ded4c0d682c4726f39e185a1ac407a2b69e7 SHA-256: cd6599e6a81db6f34421a37d9fffafaf2523dacfc335c7ea8680c4384c5d440b
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text related to 'mpsc forest pre answer key 2018', suggesting a lure. The presence of numerous external URLs, including one flagged as a potential phishing target, further supports the malicious classification. The file's structure and embedded URLs are consistent with a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://leonvi.ru/aws?utm_term=mpsc+forest+pre+answer+key+2018 PDF link annotation
    • http://xruhdfo.site/whip_and_nae_nae_dance_cleanldjtx.pdfIn PDF document text
    • https://cdn.sqhk.co/sarimotel/3haQkj0/ice_hockey_game_rules_and_regulations.pdfIn PDF document text
    • http://kaxidabifibag.iblogger.org/washington_dc_metro_map.pdfIn PDF document text
    • http://lovechat24.club/dinghy_for_sale9cq01.pdfIn PDF document text
    • http://vulefuxudonad.22web.org/chahat_ki_khushboo_hd_video_song.pdfIn PDF document text
    • https://cdn.sqhk.co/bitaxukezor/Zijiijj/100_days_zombie_invasion_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/muzolorakow/gapjbgg/zombie_hunter_toxic_skull_knife.pdfIn PDF document text
    • https://cdn.sqhk.co/xugosovemi/xjhrD4A/boomerang_maker_boomerang_video_maker_free_download.pdfIn PDF document text
    • http://lbaranaydin.com/dora_saves_the_crystal_kingdom_song09wdt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/dolore_alla_schiena_e_formicolio_alle_gambe.pdfIn PDF document text
    • https://s3.amazonaws.com/figidireki/plus_size_long_formal_dresses_silver.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/sukitapevabufofivotowib.pdfIn PDF document text
    • http://tubiruk.epizy.com/apply_for_nz_passport_form.pdfIn PDF document text
    • http://bomafedugu.epizy.com/how_to_teach_guided_reading_year_2.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaporam/fapote.pdfIn PDF document text
    • http://bidilud.rf.gd/8397442723.pdfIn PDF document text
    • https://s3.amazonaws.com/libeganot/24877503347.pdfIn PDF document text
    • http://filexumif.epizy.com/21776856743.pdfIn PDF document text
    • http://vusevupitiwo.rf.gd/40782312111.pdfIn PDF document text
    • http://zukusuvajijip.epizy.com/relixizavinirenomepanotek.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/sewinatewosuben.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/57208501689.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_off00011211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11211 5760 bytes
SHA-256: afd5fafa075c6cb986be1cbbe85cdf24a514c03c00a06ddf9f3cf714389be8d6
font_01_sfnt_off000125ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125EF 11104 bytes
SHA-256: 12f75e4b7c879adcba9587be202de56abc5d8b63e557f8e3f61f0c2c2ae86883
font_02_sfnt_off00014c0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14C0B 5316 bytes
SHA-256: c9e46d6fa73ed0a102e35658332a4b40037caa0e113595636ce49d772ba0b15f

Open this report in the interactive analyzer, or submit your own file for analysis.