Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5544ef6a76c5a26…

MALICIOUS

PDF

73.5 KB Created: 2021-03-21 08:55:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: b505ec6e52194069e7f306b2206c5462 SHA-1: 95cc71e283dd9072453981a084dbe8ca73699de3 SHA-256: d5544ef6a76c5a26dbf1e98f9b8e9c336ce3d0b049f6ee997b720fbe1246961c
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-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://maypoin.ru/wix?keyword=give+up+2+unblocked+hacked PDF link annotation
    • http://banademebilite.sportsontheweb.net/are_dehumidifiers_expensive_to_run_nz.pdfIn PDF document text
    • http://xotujezal.mypressonline.com/kubadibewusegax.pdfIn PDF document text
    • https://cdn.sqhk.co/temazajilib/w5hhWie/xoxotezivibadijijiz.pdfIn PDF document text
    • https://cdn.sqhk.co/rebabafa/0gfijdD/87219922667.pdfIn PDF document text
    • https://cdn.sqhk.co/kulobuwaxegu/rmhjPmG/mcat_registration_deadline_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/gozawelesutu/hpRlAgf/pound_cake_cupcakes_from_a_box.pdfIn PDF document text
    • https://cdn.sqhk.co/tibidimewako/gdbggCT/7230276141.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a1ea22b2-47ca-4ddd-b87e-1205ea5fdb7c/zebuxewemegepuwawuji.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf6e1585-6c24-4e35-84b0-c0a9991a3be2/qu_significa_la_raya_negra_en_el_embarazo.pdfIn PDF document text
    • http://dopafedoxafedar.rf.gd/xegob.pdfIn PDF document text
    • http://petalewoxux.rf.gd/lufaredefo.pdfIn PDF document text
    • https://s3.amazonaws.com/lekezaru/how_to_solve_nash_equilibrium_3x3.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/zisolobizuropatowolaref.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47107a4b-9998-4684-856f-d8a62b7794e3/delewinevopepuputeve.pdfIn PDF document text
    • https://s3.amazonaws.com/mubemutolewe/bilubunomutiwokazaxegazu.pdfIn PDF document text
    • https://s3.amazonaws.com/xonaxevetaf/74927650675.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_off0000e2ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EF 5316 bytes
SHA-256: 7b696bc0a4a811dcb9600b9c39fd9e6a6afd86b7afb0bb99758a2b4f657b9ada
font_01_sfnt_off0000f507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF507 10680 bytes
SHA-256: cc030e69fd69923b0ed4565a53065aa36da25312f1e4f6a8f95369e0f65d0b5e