Malicious PDF — malware analysis report

Static analysis result for SHA-256 64f1fd6eca55519a…

MALICIOUS

PDF

80.4 KB Created: 2021-03-20 03:09:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0bc1b45f3b4c6488bba82d0d43fd4b1e SHA-1: be1b4ed4f73a0f7f9f083552caf60ef066a624d2 SHA-256: 64f1fd6eca55519ab6b46b4426f9c8205c89a212a2091c1dfe0db2904d5dceeb
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9993

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://jumiwimov.ru/award?keyword=drenagem+linfatica+manual+leduc+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4447915/normal_5fef44ed6e247.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486548/normal_6035531aa6bb0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402000/normal_5fcb92a817b5f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420250/normal_601aa19fe74de.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387219/normal_5fc8b15bd198a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475997/normal_603b1f0774ac6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383470/normal_6017cb093e422.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xumizimewimapa.epizy.com/lowercase_handwriting_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e808752-8453-4da4-95e7-5d4b30eb2d89/kifijesozogedosavitozi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fec64c1c-d0d5-49d1-a2da-7a03df81929f/17396268158.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10f9abf6-a262-4c73-8d55-79bad5b05605/theory_and_problems_of_basic_electrical_engineering.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e06515b-5628-4b61-875b-1eef18f76d46/84369145253.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dac1bfad-2fe5-4dad-aea9-7f8ca30217ed/87425181752.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/36c64d56-52ca-495f-8d73-3ffe11c7231e/en_que_consiste_la_orientacion_en_educacion_fisica.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f52011e9-b9f6-4f8f-a23c-be952831d48b/que_es_una_foto_digital.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c36457c2-b8c6-406a-9b45-34b1436bc3d6/rinnai_model_r94lsi_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5622eec0-bec9-49c8-b683-08c76fd7989d/26994164237.pdfIn PDF document text
    • http://bedozep.rf.gd/60528845055.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0679ae0b-fd78-4bca-b82d-938c0de2dd9d/is_sat_cancelled_for_class_of_2023.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b21b9ba7-ca28-4868-8a7a-3fb353b1b31f/peugeot_103_sp_occasion_france.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01456cdd-d0e9-4433-a668-2bdda3b31298/bifepemageke.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a98f11b2-a587-4dee-99a7-ce066a6c755c/fender_vibro_champ_xd_5w_1x8_guitar_combo_amp.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71d0aefa-c7ef-4e4a-bd1d-653dd41b7c21/nikon_fg_20_instruction_manual.pdfIn PDF document text
    • http://bilelixolivip.rf.gd/annotate_pc.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f40a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF40A 5296 bytes
SHA-256: b8627e182a80c046127e4f6f9b3faaaf235cd6475faa3ebdf547f6de1b4b09dd
font_01_sfnt_off00010605.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10605 15212 bytes
SHA-256: a4098d8084a7af49bee2f1f4dd6ae1f60ffc1d2ed0052cca86691cadcc869f14

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