Malicious PDF — malware analysis report

Static analysis result for SHA-256 713b1059382e179c…

MALICIOUS

PDF

76.1 KB Created: 2021-03-03 08:17:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 762c88b1196baa5fe7dd71f8c714c2ba SHA-1: 786e5c2e5706d6299f846ef7c94862e5c16e3757 SHA-256: 713b1059382e179cb93ad10049381781f7fa1f781de3153a199f7410ec18f355
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to 'dish hopper audio settings'. No scripts were extracted, but the presence of external URIs and the ML/ClamAV detections strongly indicate a phishing or malware distribution attempt.

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://xajibur.ru/123?utm_term=dish+hopper+audio+settings PDF link annotation
    • http://comforfemj.fun/asurion_verizon_affidavit_formhz02d.pdfIn PDF document text
    • https://cdn.sqhk.co/tokofape/WFhftig/maxxis_atv_tires_25x8x12.pdfIn PDF document text
    • http://strahauto.website/remicade_pid2i6n.pdfIn PDF document text
    • http://spainsale.pro/809617978028uez1.pdfIn PDF document text
    • https://cdn.sqhk.co/pufowuvikij/X8hfjh9/blue_light_glasses_test.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468837/normal_5ff0bb46b21be.pdfIn PDF document text
    • http://temppicture.xyz/52788263604qo2pb.pdfIn PDF document text
    • http://bighome.space/gazzoni_diritto_civile39ngd.pdfIn PDF document text
    • http://letgtma.bid/delevuxivineruxobegunikakuf9eq.pdfIn PDF document text
    • http://testersairf.xyz/goodnight_moon_story_book_onlinet9ogf.pdfIn PDF document text
    • https://cdn.sqhk.co/daxegajok/G3hiC4H/space_rpg_3_best_ship.pdfIn PDF document text
    • https://cdn.sqhk.co/pimupigedu/h8o4kNw/commander_legends_leaks_translation.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/nodetuxapabara/sabamofipedilemasuzibuxug.pdfIn PDF document text
    • https://s3.amazonaws.com/petubapizo/biligit.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/sea_of_thieves_devilfish_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/73438675106.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/20357072547.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_off0000ec85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC85 5188 bytes
SHA-256: 7ee4a5496dec4722f8f7e872558fe80a2a43ae340e334a9a42d043849961b080
font_01_sfnt_off0000fe28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE28 10908 bytes
SHA-256: dbdff510a489fe1ff400a09fd5ed7b7c55cadf86ecb665b55e1f7f98b7eb97da

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