PDF malware analysis — malicious · d673b38ffcfa5dad

MALICIOUS

PDF

78.3 KB Created: 2021-03-17 07:52:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 200d15f4120c8f4d4b2af7988ae3b7f9 SHA-1: d10546548ed36b8149940d6b5904ef02a35a815b SHA-256: d673b38ffcfa5dad1069d1a81f6f29f30f13a64e842a2e1405b1e728d5d2b0ca

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF containing multiple embedded URLs, one of which is flagged as suspicious. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of embedded URLs suggests an attempt to redirect the user to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

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://ponafet.ru/wix?keyword=giovanni+frisina+spartito+pdf
- http://subonus.ru/cuisinart_cbk-110p1_bread_maker_manuala1ka7.pdf
- http://dipugipedanam.sportsontheweb.net/luvufunogaraterigafi.pdf
- https://fuvejewitopi.weebly.com/uploads/1/3/1/0/131070508/togonoxaxajut.pdf
- http://mainsale.info/nfl_schedule_week_2umjqn.pdf
- https://zuzunavodezap.weebly.com/uploads/1/3/0/7/130776081/wexadimago_sigewerakinut_balekesiku_rerowotejos.pdf
- http://mevakimuvu.mypressonline.com/asus_q551l_battery_life.pdf
- https://gimebupezepufo.weebly.com/uploads/1/3/4/5/134507041/wusodowiwakadisenel.pdf
- http://sarhello.online/pozidofobomerupewbaef.pdf
- https://newimogo.weebly.com/uploads/1/3/1/0/131070302/simevedekow.pdf
- http://particuliers-societegenerale.xyz/kinigovipexomadabaluvenino1ss.pdf
- http://fringigejy.site/doctor_heideggers_experiment_analysis7zeis.pdf
- http://fb-ig-violation.com/symbol_scanner_reset_ls42789qrco.pdf
- http://bcpzonasegur4viabcp.com/ros_launch_gazebo_pluginwph6m.pdf
- http://firstsecu-paypal.com/how_to_reset_weight_scalex5wzo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://rofiviriw.rf.gd/americo_castro.pdf
- https://s3.amazonaws.com/bisiku/36481756239.pdf
- http://zogosugo.onlinewebshop.net/51539797910.pdf
- https://s3.amazonaws.com/najipavez/boilers_types.pdf
- http://funizenobuwuka.epizy.com/best_text_blocking_app_android.pdf
- http://noxikemudenuma.epizy.com/jspdf_autotable_set_font_size.pdf
- http://butadiviwev.rf.gd/30423838230.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_off0000f5f8.bin` `e8128d04a6ae51d91f14b27fb9b08c4898ecc53c254ba199f86f9861ec7e139e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF5F8	5092 bytes
`font_01_sfnt_off00010766.bin` `b8fbaef2db415434b9ebb881754107ecbe612c688e15720136f9ff73f9324463`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10766	10912 bytes

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