Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf96ecc2b63682ba…

MALICIOUS

PDF

77.8 KB Created: 2021-03-22 22:47:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ef638172b977317dbb84eaa6b48ab69d SHA-1: 22d99f8451eb9602f9e252de8736857cb11d9eed SHA-256: bf96ecc2b63682ba333e5473e55c0ec7de6ade095609c7ce7a8da82e65ac9c5d
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though partially corrupted, suggests a lure related to baby milk needs, which is a common tactic for social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://resalured.ru/strik?utm_term=how+to+calculate+how+much+milk+baby+needs
    • http://kovuzaxaf.medianewsonline.com/whats_the_magnitude_of_the_centripetal_force.pdf
    • http://xunetokawetik.sportsontheweb.net/zipugufubemikexavegeti.pdf
    • https://static.s123-cdn-static.com/uploads/4452588/normal_5fdfd782aa52e.pdf
    • http://pipvip.ru/29294087806sw2z8.pdf
    • http://fesunasisodenod.getenjoyment.net/97329783011.pdf
    • http://ledy66.net/what_is_the_blue_dye_test_for_swallowingoxbvp.pdf
    • https://cdn-cms.f-static.net/uploads/4374021/normal_60351473036aa.pdf
    • http://intereriia.com/palsy_walsy_used_in_a_sentence51pyl.pdf
    • http://betmoy54.com/vefidl1g1y.pdf
    • https://nakidero.weebly.com/uploads/1/3/4/5/134524904/6075863.pdf
    • https://daginunus.weebly.com/uploads/1/3/4/5/134597638/6207006.pdf
    • https://cdn-cms.f-static.net/uploads/4421613/normal_5fe75dcacbdce.pdf
    • http://sale-siberian-force.online/gomazozovusovogavidozopont9s3.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zedudo/brighton_rock_1947.pdf
    • https://uploads.strikinglycdn.com/files/73650c3b-3c03-4ae9-acfb-bfb91c836329/funuwanedezepemowikunise.pdf
    • https://uploads.strikinglycdn.com/files/dbc610cd-e751-4b6b-a9a0-4e20ba9aad78/descargar_libro_once_minutos_paulo_coelho.pdf
    • https://s3.amazonaws.com/xopugup/41882728627.pdf
    • https://s3.amazonaws.com/kavugusepe/how_to_reset_cp_plus_nvr_admin_password.pdf
    • http://rufapapufogap.onlinewebshop.net/entrepreneurial_process.pdf
    • https://uploads.strikinglycdn.com/files/1c442762-790d-4f16-aeaf-4f35ed4883ca/weighted_straw_cup.pdf
    • https://s3.amazonaws.com/kisagoz/how_much_does_it_cost_to_insure_a_2008_honda_civic.pdf
    • https://uploads.strikinglycdn.com/files/79085464-6832-46ec-83a7-38b45eac1ff3/52567251173.pdf
    • https://s3.amazonaws.com/lebejos/55600486262.pdf
    • https://uploads.strikinglycdn.com/files/e3c0043e-e040-4dda-bf05-dced6c7dbe28/94960377974.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_off0000ef0c.bin
b6a1e7e8a4203212940255ca308b5474c5b30e428c7b686729fd9981baecccf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0C 5440 bytes
font_01_sfnt_off00010178.bin
abd34cdbea7f3bbe3d805f7f4b725774d383cfb8880c1fb8b1038ce880d04212		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10178 11212 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.