Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4dd3d265914e932…

MALICIOUS

PDF

81.9 KB Created: 2021-03-23 21:49:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1bf6d5139ec8b03f52181b0f135be70d SHA-1: e2daa90093c35e8796e7d604fb71f0c9aa7580f7 SHA-256: f4dd3d265914e9325c31ebfe77f1be507f4b10ffbf0a1fb52fe5cd85ff534757
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded external URI pointing to a suspicious domain, which is a common tactic for phishing or malware distribution. The document body, though heavily obfuscated, contains text related to product descriptions, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://jumiwimov.ru/strik?utm_term=all+clad+slow+cooker+insert+oven+safe
    • http://tekplafond.xyz/define_quantum_dot_chemistry743fj.pdf
    • http://goromeo.club/33142497269srr93.pdf
    • http://nuveclovet.xyz/how_do_i_get_my_nespresso_vertuo_out_of_descaling_modeqbedj.pdf
    • https://cdn.sqhk.co/jigitovewuk/igjE8W9/shadowlands_alchemy_trinket.pdf
    • http://boevoenlp.com/iraga_iraga_dj_mix_audio_songavz23.pdf
    • http://storezone.info/86946642321kebb4.pdf
    • http://razvivatel.blog/998380034793p8ys.pdf
    • http://reliables.ru/jenis_penelitian_menurut_metodeqp79e.pdf
    • https://cdn.sqhk.co/xazewizol/zZYNhej/business_operations_manager_resume_examples.pdf
    • http://tryadasert.online/ironhead_workshop_manualbz5ia.pdf
    • https://cdn.sqhk.co/wareberefiz/DZujjhn/40158996594.pdf
    • https://cdn.sqhk.co/xukonobos/jhp6xcb/black_plus_size_formal_party_dresses.pdf
    • http://closemaze.com/carl_sagan_pale_blue_dot_image7usl2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://romezegipoxo.epizy.com/tapexesib.pdf
    • https://s3.amazonaws.com/gedesisumi/silitusewaluzibuxisekinu.pdf
    • https://uploads.strikinglycdn.com/files/9d63fb4d-403e-4b04-b3ad-1dd2d090862b/worx_wg309_2-in-1_chainsaw.pdf
    • https://uploads.strikinglycdn.com/files/b6a4e8f9-a5d3-4028-8961-f6a6742714a0/dyson_mini_motorhead_review.pdf
    • http://jokilezitewoj.epizy.com/19013690461.pdf
    • https://s3.amazonaws.com/pisedij/67253226809.pdf
    • http://tuvugagud.epizy.com/capitale_du_monde.pdf
    • https://uploads.strikinglycdn.com/files/3355944d-af7a-4de1-83ef-ac1266fd1253/honda_4514_engine.pdf
    • http://sivumokevidosib.rf.gd/82005915414.pdf
    • http://meduzifovum.epizy.com/jalawixezisotoj.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4a2.bin
c0714e05b7a8e1acfd0f3dd38dcce15f44485ab8adabc7950736ec4d807f34ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4A2 5008 bytes
font_01_sfnt_off000105c9.bin
72505c2327482904c656beb23a0301aef476d8104da478d5961343bacc36977a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x105C9 11240 bytes
font_02_sfnt_off00012c03.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12C03 4324 bytes

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