Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1a1f1fdf35c785d…

MALICIOUS

PDF

72.2 KB Created: 2020-12-18 03:43:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5d6974dbce162f63a6702f5b102a05ac SHA-1: 90c3d7a07f4cf07e1daf714f3b1d09d5eb4e4e6f SHA-256: d1a1f1fdf35c785dc5a79cd5928cc5c543927b5f78c3acfa86231b663f30cba8
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://traffking.ru/strik?utm_term=restaurants+near+the+regent+theatre+los+angeles PDF link annotation
    • https://bitujidup.weebly.com/uploads/1/3/4/5/134598072/baladava_lapopizidin.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485149/normal_5fdb2a09a0ede.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373516/normal_5f8f37f80719f.pdfIn PDF document text
    • https://wanuwoziburake.weebly.com/uploads/1/3/4/4/134458428/3cbe55f.pdfIn PDF document text
    • https://kinimozudex.weebly.com/uploads/1/3/4/4/134498073/6d5243f6c302.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495251/normal_5fad79b413bf1.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://static1.squarespace.com/static/5fc681ecaffbf90a661134fa/t/5fc6ac989d79364840794a88/1606855833480/aadhya_s_good_night_activities_game_download.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/despacito_trumpet_sheet_music_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/mitonaka.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc56a0368612547ed7c4422/t/5fd0f9fec48c317fbcfb442d/1607531007889/mevogal.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/51163820407.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_off0000cf9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF9E 4788 bytes
SHA-256: 963c4ac625d7ee74da45d6eaae57ff76eef1ef3eeb43e9cef09e5f5f37095c5e
font_01_sfnt_off0000dfdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFDC 11448 bytes
SHA-256: ff9196e4b47dfc703a9d7f02ae78bcb78f8a000a3f71063ca5c690f65073f71e
font_02_sfnt_off000105d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105D7 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3