Malicious PDF — malware analysis report

Static analysis result for SHA-256 54b3f9567ba98eca…

MALICIOUS

PDF

67.0 KB Created: 2021-03-23 17:11:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cfe6c19a8068aa16b9e636e8050d1f08 SHA-1: aff2c0d4c87d84f4daa9949ee87fd416b92b1116 SHA-256: 54b3f9567ba98eca93592477503c542af5cdbc4f230cb7a4210b391c13cffcf3
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to product replacement parts, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://dugedepap.ru/strik?utm_term=cuisinart+dcc+3200+carafe+replacement
    • http://vexawenebo.22web.org/2450384818.pdf
    • http://xufegabuxugil.iblogger.org/best_free_video_games_for_8_year_olds.pdf
    • https://cdn.sqhk.co/virawamimozi/cqXZicz/dukegugijevosemalew.pdf
    • http://istra-backwater.ru/what_is_freak_the_mighty_movie_onazo3z.pdf
    • https://cdn.sqhk.co/dopuzodopuvu/fiighhh/lisa_peterson_popsugar.pdf
    • https://cdn.sqhk.co/palevisi/5gjijiL/barcode_128_font_free.pdf
    • https://cdn-cms.f-static.net/uploads/4372740/normal_600e2742606c5.pdf
    • http://natural-shop.info/shoei_neotec_2_sena_reviewz1vqm.pdf
    • https://cdn-cms.f-static.net/uploads/4386079/normal_600b9e5c3af11.pdf
    • https://cdn-cms.f-static.net/uploads/4479938/normal_5fdc6575ab4f7.pdf
    • https://cdn-cms.f-static.net/uploads/4477873/normal_602ae17e4fca6.pdf
    • https://cdn.sqhk.co/jegetito/gURjhgD/best_screen_recorder_app_apk_download.pdf
    • https://cdn.sqhk.co/bezorufuv/W1hc6jc/super_helix_dna.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/xefezesebusu/zuwedisoberazelopujoda.pdf
    • https://s3.amazonaws.com/lotibabakuj/amendment_in_directors_report_2019.pdf
    • https://uploads.strikinglycdn.com/files/602e3a2c-7ef3-49b8-a07e-a245ef762f99/jurizuzefarosaba.pdf
    • http://xivanokajeze.epizy.com/15594777731.pdf
    • https://uploads.strikinglycdn.com/files/9595b1f7-fcbd-4583-800b-56272f842bd9/24676065240.pdf
    • https://uploads.strikinglycdn.com/files/8d6e8bba-8c69-4bf2-9293-a8be15527450/how_to_use_food_waste_disposer_wrenchette.pdf
    • https://uploads.strikinglycdn.com/files/088b505c-d80a-4b4b-902a-ec0972fcf7af/21257012517.pdf
    • https://uploads.strikinglycdn.com/files/1600320f-f0b4-4536-a828-fab7148ebea9/why_is_my_ipod_shuffle_not_charging.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.

FilenameKindSourceSize
font_00_sfnt_off0000c84a.bin
cfed4b05402ea883cdefb4ebbc6ed5bac189d33283a0702b824c0bc982796036
pdf-font-stream PDF embedded font (sfnt) at offset 0xC84A 5644 bytes
font_01_sfnt_off0000db62.bin
ed67bcef5fe48871142ffba69bc57252fc48ec69cc957abbe22dc13de0cc93df
pdf-font-stream PDF embedded font (sfnt) at offset 0xDB62 10468 bytes