Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ab65accda75bed1…

MALICIOUS

PDF

78.9 KB Created: 2020-11-28 15:03:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9b74f75b562e219a5672c16eb7f6d3eb SHA-1: d55819a077bac440b4fa0aff9c604ccbb7885da1 SHA-256: 3ab65accda75bed100b120064e9b732f3c0ab4eea4f0f5696da3e06ffe2366d7
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 0.9998

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://traffset.ru/strik?utm_term=naruto+two+nine+tails PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4418786/normal_5fbcee2c7a3d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473963/normal_5fb553308fd8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452173/normal_5fb32208c5095.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476288/normal_5faa57d84e70d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381082/normal_5f9d158fbafc3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469834/normal_5fbec6ceb098c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384851/normal_5f9862be4ab74.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sevoga/fodedi.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/61895230842.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c953e77f-596e-4c26-a413-ba9944b01aab/kuniji.pdfIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/ginuzegefanuxavibinidaf.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/fijafasimibojerizonuk.pdfIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/kobekurovegufi.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/tapukugat.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_off0000eb7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB7C 3988 bytes
SHA-256: 52aa057b1ecad4acc89cd048749e9136fda583d5efb7cb5f248fc9c5674ba289
font_01_sfnt_off0000f9a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A5 4740 bytes
SHA-256: 106b93f4b1dda09d373bcdbb51e61cf720e75bc31d2b0349fce8d120f5bfb59e
font_02_sfnt_off000109e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109E4 10720 bytes
SHA-256: 234c30f3f4ed8459260db79af331f690047f4a4989f785cf464f76847914904b