Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee66e2d194f3f9e0…

MALICIOUS

PDF

104.5 KB Created: 2021-05-21 01:48:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d71901ea352d763dfd63c9b49fcc11a5 SHA-1: 18d511a5884213eafcb8736bc8d105ebe30261f7 SHA-256: ee66e2d194f3f9e03d16f797ad530b8b42c5423507f8c780fd8ecd3d015afbac
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://seumenha.ru/strik?utm_term=proceso+industrial+de+elaboracion+de+tortillas+de+maiz PDF link annotation
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mosezavor/dogtooth_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/94626106919.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/android_developer_training_in_chennai.pdfIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/rutetevuwikalugobiwogitup.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/99545624809.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/xofizapi.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/negative_scale_factor_tes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c27dddfa-9a30-4f17-972e-6dcef702073f/troy_bilt_weed_eater_leaf_blower_attachment.pdfIn PDF document text
    • https://s3.amazonaws.com/sixolose/dipelowisevos.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/dulovitulidasozidoro.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/what_does_interdependence_mean_in_an_ecosystem.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/best_linux_book_for_beginners.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/what_is_system_development_life_cycle_in_software_engineering.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71f262fd-d190-4307-a7e6-7a932c830410/cisco_unified_attendant_console_advanced_11_installation_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wujixus/batisabopawow.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/powerstation_psx1004in_charging_light_blinking.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/carboxylic_acid_and_esters_chemguide.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/action_point_free.pdfIn PDF document text
    • https://s3.amazonaws.com/pilazi/application_essay_format.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_off0001499e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1499E 1876 bytes
SHA-256: 90efa74511fd11c4d4d6bd8a52a01194067744a4b16ccb4158013c67c4f0d393
font_01_sfnt_off000152c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x152C6 5276 bytes
SHA-256: 38b7aeb554de8177797d185dc6145f97e1636a710a38dc1248571d5a78e33795
font_02_sfnt_off000164a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x164A2 13884 bytes
SHA-256: 09fe8cfbc3bcb6ca7b72129e24e60bad7b0015a820cc0891ffdbe89c6b90bd91