Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aab744c8cc18182…

MALICIOUS

PDF

79.5 KB Created: 2021-06-09 12:26:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fdc0a8841c641817409efe31198520fd SHA-1: 2825b4131145794e9d99bb6ff4b254bd722fc24f SHA-256: 6aab744c8cc181828bcf1de7b3c08041ffad5b38fdf11f1d80db1a7834a63993
104 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://wastran.ru/pbw?utm_term=mini+militia+crack+version PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380392/normal_604ed168818d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418565/normal_603ed36a071bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450638/normal_60357709c1e5b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470979/normal_5fcf12a4b24b1.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
    • http://werinenimuta.pbworks.com/w/file/fetch/144681513/torcon_index_today_2020_weather_channel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5105fae0-6ef2-4049-add6-99228fc3b966/restaurante_don_juan_y_maria_cartagena.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64c6b8ee-9e60-44ba-a0e2-7ae4a6a022da/wejikuvuraduvozerafaze.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28f69763-09c8-4292-a867-2fda7331da5f/what_is_ict_computer_virus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86260fbc-5422-4cb9-b627-b3490e7fc1c2/speaking_activities_esl_upper_intermediate.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25379b3f-3536-4c24-8940-1df4f54f7bcf/wukufagubelazapaliwel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26fa64e8-2498-4e27-92fc-02e1fe3ebefe/online_software_testing_jobs_work_from_home.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0ec40c5-3db8-4a48-b215-f618f6f118d3/orthodox_caliphate_meaning_in_urdu.pdfIn PDF document text
    • http://nafakogoxu.pbworks.com/w/file/fetch/144853557/gakub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36d12600-6b2d-45f1-a61d-a083b091b0f1/how_to_fix_mouse_on_laptop_chromebook.pdfIn PDF document text
    • http://wezenibafasi.pbworks.com/w/file/fetch/144633639/download_hadits_arbain_imam_nawawi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/242f7cff-80c1-4d0a-98c5-1a01860ec722/materials_for_civil_and_construction_engineers_4th_edition_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc1c9d35-a1be-4304-a414-3d282a86bf11/pilasebejovejagun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33bc060b-6c2d-4592-8cee-3d75506e2580/51945130041.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4af56e75-0e8c-4c91-a412-e50f94249b99/wayne_dalton_torquemaster_spring_near_me.pdfIn PDF document text
    • http://tekitejug.pbworks.com/f/davimaxixo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/311e41c4-9c0f-4b1a-ba9f-c6915f68b528/rinnai_tankless_propane_water_heater_reviews.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/728ba722-3f0b-4b95-b748-b41978738c3a/47830139530.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/297518a0-2a40-42e5-a3e9-308594889192/4695899894.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7e8f18d-01ee-44c5-9e2d-eb69fbb441a6/80611768634.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8deac13-b407-4034-b28e-f6e89cfe85a4/fukagofolikotavatutijun.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_off0000ec84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC84 4864 bytes
SHA-256: d65e0caeed9792628754da6a63b3f0060a88aec55d310a0447085cff758309f5
font_01_sfnt_off0000fce9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCE9 11048 bytes
SHA-256: 4881346cdcbaada035d551b57151d30d20355e0bdffd2555ad457d10b6e348c8
font_02_sfnt_off00012283.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12283 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f