Malicious PDF — malware analysis report

Static analysis result for SHA-256 d33adf3d87c10112…

MALICIOUS

PDF

60.5 KB Created: 2020-11-11 19:17:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 70ebcc343279f52809f2056abce0816f SHA-1: d8e9857b3a8a10a4e39c7c3fd615ea890a33aa9e SHA-256: d33adf3d87c10112cfd62b6005939958ee05df37de141fcb6fe90f956b1ddd55
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 0.9994

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://trafftec.ru/123?utm_term=let+your+conscience+be+your+guide+lyrics PDF link annotation
    • https://medizagokitoni.weebly.com/uploads/1/3/2/3/132303310/1742738.pdfIn PDF document text
    • https://relotozaku.weebly.com/uploads/1/3/4/2/134266658/topoza.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
    • https://uploads.strikinglycdn.com/files/bda45084-7376-4528-84f3-1bf635e80c13/34686161642.pdfIn PDF document text
    • https://s3.amazonaws.com/xutomoxu/mossyrock_high_school_address.pdfIn PDF document text
    • https://s3.amazonaws.com/tagorarib/gubaluvusuxukax.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/megaminx_solution_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/baxadelefofibuz/xiwusamo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13277597-b8c1-42b4-8ae5-bfabecc854f5/nefatibiwelujavuzowizeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9af82098-6156-4aac-b7f7-269a179d5e6c/kagavapo.pdfIn PDF document text
    • https://s3.amazonaws.com/rokuwapesu/69074005262.pdfIn PDF document text
    • https://s3.amazonaws.com/libowebujakux/node_js_book_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33c68b68-e6d7-4f24-a1b6-616380ab8ebe/6983167035.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_off0000a7bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7BC 4960 bytes
SHA-256: 336a2e9548e5f4b9e25119a07316da0106da66cd2cfc597b1a4baf8ce9bf8cb6
font_01_sfnt_off0000b8ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8AE 8952 bytes
SHA-256: 8feee58d4274ce0384212aa9e77629960f4741c4fb597ce9c9f92910990de6a7
font_02_sfnt_off0000d74b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD74B 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378