Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5e89b8cd7d10cb9…

MALICIOUS

PDF

89.3 KB Created: 2020-12-02 01:57:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 533c323d272f716eb4ef814d1d7f5ca4 SHA-1: b9123578c2ffe483badfb661b8347644ddb09242 SHA-256: c5e89b8cd7d10cb949f8f8d0a254e1d7ac3aeac01fcca8fa7f2f54b3cd18d039
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://traffnew.ru/123?utm_term=ffxiv+blue+mage+spell+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475379/normal_5fae05f842b31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379851/normal_5f9989634405f.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/bokofapig/40272357287.pdfIn PDF document text
    • https://s3.amazonaws.com/zasepo/piwekedixefatuwor.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/98293350302.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5402c6609fd0ee7ae1977/t/5fc6c41ea907d7439cc48447/1606861854404/rejunutapokexajilidad.pdfIn PDF document text
    • https://s3.amazonaws.com/juzinaramip/63363788642.pdfIn PDF document text
    • https://s3.amazonaws.com/dowesitobuga/rowiwolizumepelowa.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc13af71c8c7413143404cb/t/5fc5db91cb3e0f57711ad5ad/1606802326866/rajolusabivujolezaxixumiz.pdfIn PDF document text
    • https://s3.amazonaws.com/bejideba/29332740318.pdfIn PDF document text
    • https://s3.amazonaws.com/rovuweraja/41979704910.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0e2beaf37e3b64632fd8/1606290988746/vaxajoxubida.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/environmental_value_system_outputs.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_off00011f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F81 5488 bytes
SHA-256: 4ff550020318fd395dd2ada8ae2196beb2580971959c390fab0b949c55c0acb5
font_01_sfnt_off00013226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13226 10796 bytes
SHA-256: 8fcef271172c51f0e556136b7cbb36bdd94baf45366c10dadb1531450f37cf29