Malicious PDF — malware analysis report

Static analysis result for SHA-256 67132951b38b43a9…

MALICIOUS

PDF

81.7 KB Created: 2021-03-17 17:33:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82c090894dbedeaa0870b931af78a64d SHA-1: 71b3cc1392890cbf698e22cd7ad25792d683f624 SHA-256: 67132951b38b43a990e51ce5e5582145a640fa3922e9bb207c7d628cfdff2922
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, disguised as a free food menu template. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of an external URI is a primary indicator of compromise.

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://lozipotod.ru/123?utm_term=food+menu+label+template+free
    • https://cdn-cms.f-static.net/uploads/4393483/normal_5fe840a676897.pdf
    • https://bizilekiri.weebly.com/uploads/1/3/4/6/134647150/papenativipelod-mawaguf-tiwobikosetaken-piretadepadoga.pdf
    • https://sudarixadozitot.weebly.com/uploads/1/3/5/3/135331315/1713886.pdf
    • https://cdn-cms.f-static.net/uploads/4417998/normal_6051a1c71d6a1.pdf
    • https://cdn-cms.f-static.net/uploads/4485942/normal_60237c8b90b4a.pdf
    • https://majemuxisirilud.weebly.com/uploads/1/3/4/7/134719568/temofazaxojavabopojo.pdf
    • https://static.s123-cdn-static.com/uploads/4479470/normal_60004146f272c.pdf
    • https://static.s123-cdn-static.com/uploads/4496193/normal_5fc6d4d2eaff5.pdf
    • https://cdn-cms.f-static.net/uploads/4385197/normal_601d832c87f19.pdf
    • https://cdn-cms.f-static.net/uploads/4418575/normal_6033d824ae768.pdf
    • https://cdn-cms.f-static.net/uploads/4486748/normal_602d961e642d7.pdf
    • https://static.s123-cdn-static.com/uploads/4453914/normal_5fcf04b114284.pdf
    • http://wilemavilaka.22web.org/antivirus_software_app_for_android_phone.pdf
    • https://pigudoxuwupif.weebly.com/uploads/1/3/1/4/131437670/7cfa2f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/wazorixekunafob/officejet_pro_k8600_driver_mac.pdf
    • https://uploads.strikinglycdn.com/files/1106ff09-dbc2-4405-94e9-77c8f41eabf4/berimijavazirufuwiwufifo.pdf
    • https://s3.amazonaws.com/dinisemowoge/97566943095.pdf
    • https://uploads.strikinglycdn.com/files/f9cacc6d-8c99-4f2a-a033-c93431da7b46/52995289262.pdf
    • https://uploads.strikinglycdn.com/files/2863d5c5-741f-47ad-9079-9f82e1268628/2010_chevy_malibu_electric_power_steering_pump.pdf
    • https://s3.amazonaws.com/rizoli/asus_maximus_vi_hero_bios.pdf
    • https://uploads.strikinglycdn.com/files/2fc3d69f-0672-4736-b728-d0e3339362cf/salems_lot_2004_full_movie_online_hd.pdf
    • https://s3.amazonaws.com/fosalizuzu/bihar_board_online_form_2019.pdf
    • http://ripifozuj.rf.gd/nefokowifafuwu.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_off0000f521.bin
af746dd8df1af7a946df40c018fe26e5f232c569febc8f64e4605e4748b560f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF521 4940 bytes
font_01_sfnt_off000105cc.bin
0c2d64870a12d2cb527696c49f7c67a2c49721b030301563dc891b68068be6c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x105CC 11044 bytes
font_02_sfnt_off00012b4a.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12B4A 4324 bytes

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