Malicious PDF — malware analysis report

Static analysis result for SHA-256 179a9415873bb818…

MALICIOUS

PDF

77.7 KB Created: 2021-02-21 20:07:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: dd21f9a4e19b1df696f69d7aa102437f SHA-1: b0e05d1b2fb094fda719063c94a8634dd464c01b SHA-256: 179a9415873bb818aee7165cda44ae88a43815ff602fd62919f7cea22c68263a
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 references to 'John Deere 345 review' and 'wkhtmltopdf', suggesting a lure to disguise the malicious nature of the file. The presence of multiple embedded URLs, including one pointing to 'leonvi.ru', strongly suggests the document is designed to redirect users to potentially harmful content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/123?utm_term=john+deere+345+review PDF link annotation
    • https://cdn.sqhk.co/wajuletixex/eAghThO/zobakamugirexadorebonegew.pdfIn PDF document text
    • https://cdn.sqhk.co/zatejurix/4rgTidd/super_jack_s_world_free_run_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuzajomugi/cliiIih/basketball_league_online_free_throw_matches.pdfIn PDF document text
    • https://cdn.sqhk.co/zovitamojim/ijiayJJ/psebay_gravity_moto_trials.pdfIn PDF document text
    • https://cdn.sqhk.co/wewisadavoj/5nghjcT/cfosspeed_system_service.pdfIn PDF document text
    • https://cdn.sqhk.co/letopoto/dgcKKhc/murder_hornet_nest_pictures.pdfIn PDF document text
    • https://cdn.sqhk.co/kajutizikodu/DjciG3v/ripezaladiz.pdfIn PDF document text
    • https://cdn.sqhk.co/zetanitanedo/jkiahhz/celebrity_cruises_2022_asia.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499635/normal_5fd8b577141fc.pdfIn PDF document text
    • http://nigasheff.xyz/larry_david_net_worth_20189z66b.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/5iejbFM/weapon_mastery_new_world.pdfIn PDF document text
    • https://cdn.sqhk.co/getabemuto/hpTgcjj/83979651219.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386087/normal_5ffac885c3e2b.pdfIn PDF document text
    • https://cdn.sqhk.co/wekaradukuve/jfiyKXF/sagokadikezelox.pdfIn PDF document text
    • http://abouts.space/english_to_thai_alphabet_translation3yw9e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/mother_s_day_coupon_template.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/free_advanced_systemcare_android.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_off0000e46d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE46D 4716 bytes
SHA-256: 058bb57c1d63870b646386819119a4550ad4d76ae0d5700360ac8b82c2a735a4
font_01_sfnt_off0000f473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF473 11572 bytes
SHA-256: 7bdf793d12a16dced8b72cd763b2a38b03158baec14221ef3b335a6914248ed8
font_02_sfnt_off00011b2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B2D 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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