Malicious PDF — malware analysis report

Static analysis result for SHA-256 35fea97d3fe58586…

MALICIOUS

PDF

76.1 KB Created: 2021-01-28 12:42:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 1184d39aa4e692b00b85241c9b0dc653 SHA-1: 3de30aa338921c546559e3b73d72dfd5aeadef13 SHA-256: 35fea97d3fe5858681e7f99c9f1863715a5be1a725274e56612be178a0b0b976
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, identified by heuristics as an external URI and flagged by a machine learning classifier. ClamAV also detected it as a phishing trojan. While no scripts were extracted, the presence of the malicious URL suggests an attempt to redirect the user to a harmful site, likely for phishing or to download a second-stage payload.

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://seumenha.ru/123?utm_term=in+the+palm+of+his+hand+statue PDF link annotation
    • http://vabuletarikinil.iblogger.org/kindergarten_babysitting_games_full_version.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457561/normal_5fc6d002eeede.pdfIn PDF document text
    • http://leadtop.co/97784733834h1u7i.pdfIn PDF document text
    • http://togoxuruk.22web.org/68747329802.pdfIn PDF document text
    • http://detonic-italy.website/definition_af_videnskabsteorimxgh2.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/wefadep/fractions_decimals_and_percentages_ks2_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/eular_gout_guidelines_2015.pdfIn PDF document text
    • http://nuvitaros.epizy.com/jikozojodaxawupiravup.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/auto_call_recorder_pro_apk_full_cracked.pdfIn PDF document text
    • https://s3.amazonaws.com/zubata/17511967501.pdfIn PDF document text
    • http://juxudawalugevop.epizy.com/62849623003.pdfIn PDF document text
    • http://vupikefugogulup.epizy.com/xekijiboxef.pdfIn PDF document text
    • http://vobewegogiz.rf.gd/refufenalavuro.pdfIn PDF document text
    • http://xugidujesu.epizy.com/grimaldi_s_pizza_nutrition_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/68279429382.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/amoeba_sisters_video_recap_diffusion_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/carrying_you_piano_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tesasubawalozan/free_call_of_duty_mobile_ios.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_off0000ee09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE09 5124 bytes
SHA-256: 1adabd3c3abff42e81e0fea86dfa1b36b5ba9ef76dc82b55628ab66de4bbf37e
font_01_sfnt_off0000ff51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF51 10572 bytes
SHA-256: c7582625cf44d37808a5ae3d17ed8567ad80c76d1933f158ab628605e6847ad3

Open this report in the interactive analyzer, or submit your own file for analysis.