Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e67daf279a69cfc…

MALICIOUS

PDF

75.5 KB Created: 2020-12-14 21:56:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 950ef15f3db25e47d8e98cbc33efcdb4 SHA-1: d50fcdb7aad2b8c068db820b11269e891c1bf32b SHA-256: 7e67daf279a69cfce7f8559421c273e9873314d0ae5a09088a9a6ad49b4ef5c2
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 0.9998

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://trafffe.ru/aws?utm_term=storyline+2++free+trial PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366040/normal_5fb644a8039f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485696/normal_5fb25c51992ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378834/normal_5fa7d18d3dad3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418746/normal_5fb42ddabaeb3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407085/normal_5fb7e59d097fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476783/normal_5fbb120c5fdcc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489716/normal_5fad90bd2d132.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411700/normal_5fd13c52ef561.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379614/normal_5fb7d6b557279.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc080f7bf71053ccb0e3c67/t/5fc3863f2dd96f59185b5339/1606649408371/55410434016.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc117cc3398ff75152f2ade/t/5fcab3e4a5c5764954c7f105/1607119851395/free_online_texas_holdem_poker_no_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6c9feb2e29c7ba98face7/t/5fcabcf18afb5e744432ed79/1607122166255/wordbrain_2_vegetables_level_3_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce5f902ebf7d3ac6464c08/t/5fd6d5655488895576bd3125/1607914853469/between_the_sheets_critical_role_recipes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2aa6d5e9-c67e-41f6-9a0e-9f705954db9a/8068295201.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6c0f08651a04751934446/t/5fcc13641e1a4d7de1185f38/1607209829245/rejabarezoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/99adf4b7-d36f-4b11-a5ce-8850bf19d7b9/sony_hdr_pj275_manual.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d70a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD70A 4920 bytes
SHA-256: 1eb8c7af39cfe381d97fc80c4133fe5b18bcbdc048c49b2a3fc3018981ec8426
font_01_sfnt_off0000e7dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7DC 10380 bytes
SHA-256: 4ac3fd545b1fb3c1976f2240eb5f4fd6d39dde1cf8c2a111d8b5ca6acaee891e
font_02_sfnt_off00010b6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B6D 16144 bytes
SHA-256: 2a5f1667c2e343500efde63e3dd6a136498333968b1680966ac5eb34589f1174

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