Malicious PDF — malware analysis report

Static analysis result for SHA-256 981a5202fe88b11a…

MALICIOUS

PDF

73.7 KB Created: 2021-02-15 19:10:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 93b8425a00c24cc2e39c947985130975 SHA-1: 30ffd4e4ebc9ac5761c5026468993adb7dbb0db7 SHA-256: 981a5202fe88b11ad3b47ae077211bf0965b23bdd2f17fbeb1555188c05396b6
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-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://jottigo.ru/strik?utm_term=serato+dj+intro+windows+8+free+download PDF link annotation
    • http://about-igsupport.com/arthashastra_book_in_urdu_free_downloadgz415.pdfIn PDF document text
    • https://cdn.sqhk.co/jojipimuve/fDieEhh/fofoveduzezidepir.pdfIn PDF document text
    • https://cdn.sqhk.co/lilaxikixo/fibSXji/76105192916.pdfIn PDF document text
    • http://trokot-shopnew.online/adjektivdeklination_ohne_artikel_bungen_online0z3tb.pdfIn PDF document text
    • https://cdn.sqhk.co/zufuxirap/nFgcKje/bebilonidaxibo.pdfIn PDF document text
    • https://cdn.sqhk.co/faxenukev/XgghiTx/94045758721.pdfIn PDF document text
    • http://peuly.xyz/legivepipazexogiluxekokoxaj169.pdfIn PDF document text
    • https://cdn.sqhk.co/jorisuzil/hgjibCN/switzerland_coronavirus_travel_from_us.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/sevoga/reporter_gene_biology.pdfIn PDF document text
    • https://s3.amazonaws.com/neporezofov/wenisewoxiriforezazaxev.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/ultrasound-_guided_knee_cyst_aspiration.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/23934975326.pdfIn PDF document text
    • https://s3.amazonaws.com/tazopaju/58037710131.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/app_free_tik_tok.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/8897071223.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/nerusajuk.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_off0000e3c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C1 5364 bytes
SHA-256: fa2d0198c96e5e482a783a8b15d368fb317881ef8de50f36a3a0846a5242ebf7
font_01_sfnt_off0000f618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF618 10552 bytes
SHA-256: 4e0f7f3732aabb6a1227ada27ed9fe1a8e6b259019cae1d24b38afa43ab4a7c4