Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1f505e68d2a9364…

MALICIOUS

PDF

82.8 KB Created: 2021-03-29 16:57:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: c0d01670b2beca12fde8cab6d01057bc SHA-1: fbf98863bdb663962b001ab1ddcc73bab33696cb SHA-256: d1f505e68d2a93648a14cb325a019206717bbdefc781984779d09f24b3e9e47d
104 Risk Score

Malware Insights

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

The ML classifier and ClamAV detection strongly indicate maliciousness. The presence of an external URI pointing to a suspicious domain, combined with the 'Urgency / deadline lure' heuristic, suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF format and the nature of the heuristics point towards a malicious PDF designed to trick users into navigating to a harmful URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://botokaw.ru/123?utm_term=car+accident+police+report+nyc PDF link annotation
    • http://vexezujuzas.scienceontheweb.net/51275357804.pdfIn PDF document text
    • http://vibolofisef.mywebcommunity.org/61675092114.pdfIn PDF document text
    • http://zunuruxeguxifi.mygamesonline.org/angeles_y_demonios_free.pdfIn PDF document text
    • https://cdn.sqhk.co/gulizate/fUCjehd/fedumapaxupef.pdfIn PDF document text
    • https://cdn.sqhk.co/rixutixim/5iphfjh/amazon_kindle_fire_7_charger.pdfIn PDF document text
    • http://gejesixave.scienceontheweb.net/lange_psychiatry_10th.pdfIn PDF document text
    • https://cdn.sqhk.co/mudifuto/gg0hihi/93473114536.pdfIn PDF document text
    • https://wadaletabuj.weebly.com/uploads/1/3/2/6/132695896/f101c6ecf.pdfIn PDF document text
    • http://vazagitomis.mypressonline.com/bhagavad_gita_saar_in_kannada.pdfIn PDF document text
    • http://fabujisaw.mygamesonline.org/accessibility_law_philippines.pdfIn PDF document text
    • https://cdn.sqhk.co/sifajoxojif/7jfgihd/clockify_extension_opera.pdfIn PDF document text
    • http://tujijamutibe.sportsontheweb.net/21653054467.pdfIn PDF document text
    • https://zezojafoxivofed.weebly.com/uploads/1/3/4/5/134528913/moruxesitegukig-jetexafake-fusimibonidunu-junaz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/likerajatob/27804614714.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/pq_o_titulo_de_eleitor__cancelado.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2e2dbce-2d6b-4fdd-bf71-71cd1cedf2e4/6214643551.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/51258982274.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d39fd2a-cf98-48ae-986b-f60d11557c79/46380144650.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec97c8b4-b0c3-4a5c-b1ec-852543fe6d62/ender_in_exile_audiobook_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/hostal_casbah_formentera_telefono.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66f36a93-50c3-43d7-b948-4079e93a7043/pagasugosepejawuzuzof.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/reziwo.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9F4 4800 bytes
SHA-256: e8a2a455d90a7465231a577225592f1ea02d64ed8e1460c3dac3288c3f1ba4a2
font_01_sfnt_off00010a56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A56 11108 bytes
SHA-256: 77678ba7106fa0c4d1a63c1c46188b15f78d514f5fe088e0600613217e6f17ef
font_02_sfnt_off00012fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FD1 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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