Malicious PDF — malware analysis report

Static analysis result for SHA-256 2da679a46bd7aa70…

MALICIOUS

PDF

164.7 KB Created: 2021-02-22 06:00:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 254e0bdf04f4a9da18724949b84c3d92 SHA-1: 9f74fb6c59009c933deb8482ed2b430de28e4409 SHA-256: 2da679a46bd7aa70f23288f981d5695f59551d4ffd9783ec45c51b6839f6760a
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 0.9997

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://baarspo.ru/wix?keyword=bizhub+c554e+parts+manual PDF link annotation
    • https://tunoworuv.weebly.com/uploads/1/3/4/0/134017870/8d97c1f8.pdfIn PDF document text
    • https://cdn.sqhk.co/rolileduvof/dlgjaKI/lowes_samsung_refrigerator_filter.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483083/normal_600ea20d740c7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465403/normal_5feb9ede8b192.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366346/normal_600b383008305.pdfIn PDF document text
    • https://xedutorapul.weebly.com/uploads/1/3/0/8/130813372/gomarimifiro_kedud_kimaxekoxox_vaxulixujutoj.pdfIn PDF document text
    • https://rijopadanag.weebly.com/uploads/1/3/1/0/131070137/d45239.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444123/normal_5ffda72c9b468.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407299/normal_602a8af31125c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369508/normal_5ff81d03dea5b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452588/normal_5ff4f2320b66c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409606/normal_5fd135d6895e2.pdfIn PDF document text
    • https://gozaxuvo.weebly.com/uploads/1/3/4/6/134612917/jazipezi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454421/normal_600213fab88e4.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/dobikasukavu/shampoodle_guide_acnl.pdfIn PDF document text
    • https://s3.amazonaws.com/rowubunak/70036915283.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_off00023f4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23F4E 5624 bytes
SHA-256: d65357480ffec1531a4f2b779b187762eca63027881e6379b37fd7f608c9b1f0
font_01_sfnt_off00025252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25252 16764 bytes
SHA-256: 5d9cd9ab10f605101ed25ff6719e6166b6e3a325bff1a93afab9fbd42ef4eb80