Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a9c219ac4e0195d…

MALICIOUS

PDF

81.4 KB Created: 2021-02-15 08:26:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: f2f101c5329ca02687306041da106321 SHA-1: 16f4dae85a64b22738eb3e5212002134ebc0a06a SHA-256: 8a9c219ac4e0195d7b61f13d65461141775686012d2e1dcfe7e0fb62adfe07a0
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL 'https://leonvi.ru/wix?keyword=root+apk+android+8' suggests a phishing or social engineering attack, aiming to trick users into downloading an application. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing lure, likely leading to the download of malware.

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://leonvi.ru/wix?keyword=root+apk+android+8 PDF link annotation
    • http://reduslim-shop.website/tda_mmd_models6ownk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459463/normal_601f78a17b8f8.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/ijGIojj/best_bart_art_wallpaper_hd_bird.pdfIn PDF document text
    • http://myirn.icu/736861066328egcd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402503/normal_5ff16817de467.pdfIn PDF document text
    • https://cdn.sqhk.co/redexisa/ec94Bj1/koden_funeral_envelope.pdfIn PDF document text
    • https://cdn.sqhk.co/pixorikibam/jgiajcO/38882386415.pdfIn PDF document text
    • https://cdn.sqhk.co/dalegoti/0mimvcs/fl_commando_d_day_hack_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/jasurisunav/dhjnjju/warhammer_40000_regicide_apk_mod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388598/normal_601f33cfea471.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/iciaiiu/dania_sandwich_tapas.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385434/normal_5fd76e4834e6d.pdfIn PDF document text
    • https://cdn.sqhk.co/fudikeraz/Djbiigg/solitaire_engagement_ring_princess_cut.pdfIn PDF document text
    • http://airned.ru/agammaglobulinemia_ligada_a_xutdqq.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/hJgigeo/63250384131.pdfIn PDF document text
    • https://cdn.sqhk.co/perikowep/4iigcjN/15820909971.pdfIn PDF document text
    • https://cdn.sqhk.co/romilononove/jgphaBo/43938525088.pdfIn PDF document text
    • https://cdn.sqhk.co/wifinalimow/60gcOKq/dictionary_english_to_farsi_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000fa10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA10 5008 bytes
SHA-256: 8dc7b38b136d42805dda813968682cc87c80567a61ff653644c2f06dceae3c16
font_01_sfnt_off00010b27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B27 14508 bytes
SHA-256: 7d628dad1685701725556ce0bcf7af09eba1e72124b60770d5659be94344774c

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