Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ec134ad7012d147…

MALICIOUS

PDF

73.5 KB Created: 2021-03-20 07:31:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: fc9774e4cbfc81d82f8cbcd5a9d7f935 SHA-1: b8070a980f2d9ecfabd67698d21e9cc925972fab SHA-256: 1ec134ad7012d147cfbb23a79d0537c3c21028bcae4ff52e8dd15b79e23b4cf9
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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://dugedepap.ru/strik?utm_term=how+to+harvest+sweet+potatoes+leaves PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4408324/normal_5fca244894e96.pdfIn PDF document text
    • http://xaraxag.mypressonline.com/zotewotubu.pdfIn PDF document text
    • http://pigigozoruda.mypressonline.com/fopazevivepebifosateka.pdfIn PDF document text
    • https://cdn.sqhk.co/jemitaso/bKgxfaM/ios_control_center_with_pro_screen_recorder.pdfIn PDF document text
    • https://cdn.sqhk.co/lusesito/hd9bnCr/zevutase.pdfIn PDF document text
    • https://cdn.sqhk.co/govazilose/jjggLsy/bird_feeder_hangers_for_windows.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/jfifxgg/preschool_teacher_assistant_job_description_resume.pdfIn PDF document text
    • https://cdn.sqhk.co/sipobufiw/jHAMije/baropovuzu.pdfIn PDF document text
    • https://cdn.sqhk.co/numovasovev/a5cDggO/hexagon_shaped_glasses.pdfIn PDF document text
    • https://cdn.sqhk.co/kiwapipu/eHjbrcf/14934392281.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386830/normal_5fda2428c114f.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/resisuna/error_getting_amazon_music_playlist_information_echo.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/panasonic_toughbook_cf-53_battery.pdfIn PDF document text
    • https://s3.amazonaws.com/numunenoji/assassin_s_creed_black_flag_pc_trainer.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/naral.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_off0000e391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE391 5020 bytes
SHA-256: dd7c8aea6db125fbab3aaa636e4c47a698b3d0acffd2f54f2a66df800ee0e1f5
font_01_sfnt_off0000f4b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4B4 10588 bytes
SHA-256: 42c82b1d4bde1ce18a222c2ffcd88ae77ea5583d4682c656020e67c7e0ce39eb

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