Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e354c9f211e59bd…

MALICIOUS

PDF

345.4 KB Created: 2021-03-22 01:27:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a0499193aeeb4bd64289a743fa3867d4 SHA-1: 5e2233e3ca3a06bdb3d691182d93b957d781a5dd SHA-256: 0e354c9f211e59bdd4294da86dacdfaacb33eb6424a76f2eb41f6cb55b63c410
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 0.9938

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=focus+on+vocabulary+2+pdf+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413240/normal_601b7b1ead3eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377128/normal_604a7631ec307.pdfIn PDF document text
    • https://wilulesutazi.weebly.com/uploads/1/3/3/9/133997377/geginebare-mogudufukop-tumijoxijixiko.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366664/normal_602c2760ada0c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_60322dcb89b91.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416332/normal_5fdc298b65a01.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411270/normal_5fdd3a15d4267.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416154/normal_5ff5caebb2a68.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451756/normal_6025618a3dc5d.pdfIn PDF document text
    • https://simisodiguguvig.weebly.com/uploads/1/3/5/3/135324772/topadorun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367668/normal_603310c8e9ad1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483586/normal_602f17508c9c9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b68cbea-39d7-4b8a-a1dc-665d2d29c4ad/how_long_to_remove_wart_with_salicylic_acid.pdfIn PDF document text
    • https://30de3caf-c510-4ce9-8691-b8280dc60d9b.filesusr.com/ugd/4980ee_2c586f454d744e44905f5786873e1053.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/abc264d6-fe48-4f87-9e96-da5dad2e1c33/how_to_combat_reverse_psychology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efa21485-1c9d-4157-8a7a-7fb0b19dca08/the_art_of_the_start_2.0_ebook_download.pdfIn PDF document text
    • https://01dc7cc6-b8ed-446e-8cc8-1ad78882ed38.filesusr.com/ugd/e23fbb_9636658337214b999005e4056fa3c7cd.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8897a9df-9876-4a6f-9499-02bec5021351/3646538999.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0c1a48b-e9d7-4788-8df3-0e68f4eeb172/68882265504.pdfIn PDF document text
    • https://e809654a-a95b-4dbc-a338-24085255a2f8.filesusr.com/ugd/1b6cec_e095277f3d144dddbfbf4ea4eb4b539e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/92f5ae95-423e-48ce-b610-d84dfeb5cc6e/the_playbook_mike_bellafiore_audiobook.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off00051f41.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51F41 31304 bytes
SHA-256: 123ceb3def8f4e2f69550dc41ca2e4f6aebad7fa96eac6548d89b5c375af495b
font_00_sfnt_off0004e081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E081 5628 bytes
SHA-256: a40fc1a6ba566f63c84e9bdfab2a051c1a2eae738ee1e48cd9d012887a1bbef6
font_01_sfnt_off0004f3d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F3D4 12792 bytes
SHA-256: 446ee3536e1838d0ffd32f597a54ae97cdb0d8926d61a6704f9c97003ee895ee

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