Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3284df1f0abce6b…

MALICIOUS

PDF

69.8 KB Created: 2020-12-16 07:11:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1029da1da5e2ad4df15b15d61b510b68 SHA-1: 43726696ff4b6274d7b751a1c8a17798531f4434 SHA-256: d3284df1f0abce6be3278ac7ef036abf3ef20a7f6483163e276a72bcf98cf328
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 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=superman+man+of+tomorrow PDF link annotation
    • https://juladuwupib.weebly.com/uploads/1/3/4/7/134763366/9807861.pdfIn PDF document text
    • https://vizakadaji.weebly.com/uploads/1/3/4/4/134491897/8282858.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380674/normal_5faaa63e8a14e.pdfIn PDF document text
    • https://zufikuwokuz.weebly.com/uploads/1/3/4/5/134522796/mipozafi-madurawogir.pdfIn PDF document text
    • https://dolojimopa.weebly.com/uploads/1/3/4/8/134887070/selizexogowozune.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://s3.amazonaws.com/domegagowevag/42398799108.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc542ce9698b02c7f3d61af/t/5fc814c8bbb7f45a927be0bd/1606948040416/vofafimavobowabazi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e7c288c99b6d37a72027/t/5fc81362ec83506b046ae479/1606947682429/goxotetuxadirigemeki.pdfIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/kado_the_right_answer_episode_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/zebarufuridorur/rimozopudezoz.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_off0000c845.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC845 4868 bytes
SHA-256: c27705cb02e40b92accd24f898313ba337a865c502fa3a8cf9c800c3df6d966c
font_01_sfnt_off0000d8c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8C0 10596 bytes
SHA-256: a4ac75bc32b9914f8c2304113e879d280c0f226e404a986ab67fad915dafd2be
font_02_sfnt_off0000fce8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCE8 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378