PDF malware analysis — malicious · ba65deb0407db1bf

MALICIOUS

PDF

75.8 KB Created: 2021-03-25 13:17:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 13348b4a08f9405e3d4a52a171dec518 SHA-1: 758cf0cb9e2001ba2ffa70f205e700975e74c70c SHA-256: ba65deb0407db1bffe22e428f83d1135bc94ff24ae1b1b34db9cb9e73c22037a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of malicious intent. The ML classifier and ClamAV detection further support this assessment. The document body, though heavily obfuscated, appears to contain keywords related to a product search, likely a lure to encourage users to click the malicious link.

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://midufefew.ru/wix?keyword=toshiba+laptop+battery+replacement+pa3817u-1brs
- http://fullpisetc.ru/148346142576v34b.pdf
- http://yandex-delivery.cc/us_army_officers_uniforms_ww2o6j0y.pdf
- http://marketeuro.pro/minecraft_download_free_pc_unblockedy19r7.pdf
- http://sarilaruzez.iblogger.org/4647510020.pdf
- http://vurenosul.22web.org/pen_is_mightier_than_sword_meaning_in_marathi.pdf
- http://lighterusb24.site/how_to_replace_washing_machine_filteryeu4j.pdf
- http://bosnoslovnoejelaniekupit.xyz/rca_rcr314wr_3-device_universal_remote_control_manual3uroa.pdf
- http://trysol.xyz/navien_ncb_240_error_code_e0012zi2i.pdf
- http://dinodosum.iblogger.org/financial_statement_analysis_report_doc.pdf
- http://keto-s1.com/how_to_find_delta_shower_valve_model_number1n9lt.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/ritoma/why_does_my_lg_dishwasher_not_start.pdf
- https://s3.amazonaws.com/jumedemimo/79835608400.pdf
- https://s3.amazonaws.com/posufij/51191472729.pdf
- http://pakefuvusenoz.rf.gd/waterpik_water_flosser_manual.pdf
- https://s3.amazonaws.com/desekusoxi/janatha_garage_movie.pdf
- https://s3.amazonaws.com/nademopor/video_converter_pro_apk_android.pdf
- https://s3.amazonaws.com/telasebisu/ditukujazi.pdf
- https://s3.amazonaws.com/bifadiwuwileji/17274088063.pdf
- https://s3.amazonaws.com/sivanira/jingle_bell_rock_sheet_music_clarinet.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e951.bin` `4185b25ea24a37b51a0f2605330a66b1c11ea7872c98e285ac18fffb88100d74`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE951	5884 bytes
`font_01_sfnt_off0000fd46.bin` `9481183891cae1af2a9e6dbbbac93abb0c47ba583826e9e7965919bd4cf9c1a9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFD46	10744 bytes

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