Malicious PDF — malware analysis report

Static analysis result for SHA-256 17c0157afce5e20f…

MALICIOUS

PDF

102.1 KB Created: 2021-03-18 12:45:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a1a427d381bd8f488a9aa7a98d077000 SHA-1: bb921ee1c7ae42a3f1497fdff71867f14344ee70 SHA-256: 17c0157afce5e20f6e9424e3cfaee1c62d185a242fed349469985dddbf011325
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains multiple embedded URLs pointing to potentially malicious domains, suggesting it's used to redirect users to phishing or malware-hosting sites. The PDF_URI heuristic specifically highlights an external URI that is likely part of the lure.

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://mezovuduw.ru/aws?utm_term=american+gods+season+1+plot
    • http://good-production9.site/alice_bailey_astrologylvyg9.pdf
    • https://cdn.sqhk.co/fapetemiji/1zhjNie/bhop_cs_go_console.pdf
    • https://cdn-cms.f-static.net/uploads/4470836/normal_601e7f45b7f87.pdf
    • https://cdn.sqhk.co/rerunagakiz/FiahcNt/87561659310.pdf
    • https://cdn.sqhk.co/kajipazuto/hd1wwhg/chance_yachty_freestyle.pdf
    • https://static.s123-cdn-static.com/uploads/4484115/normal_5fe386afab2e5.pdf
    • https://cdn-cms.f-static.net/uploads/4366331/normal_60369736a64c7.pdf
    • https://cdn.sqhk.co/likunubiba/8hghj1u/vofanokivuzodepusukigi.pdf
    • http://kataeta.club/421120918254voht.pdf
    • http://kimiter.medianewsonline.com/caracteres_chinos_tradicionales.pdf
    • https://cdn.sqhk.co/wimedizi/ic6dghJ/25790622126.pdf
    • http://ligexekena.mywebcommunity.org/everyday_use_mama_character_analysis.pdf
    • https://cdn.sqhk.co/bubiwalifeda/g8f1arU/20167347434.pdf
    • http://italiahot.fun/fatevelaxalenanodekixesy3qq2.pdf
    • http://polobasopika.mywebcommunity.org/forex_trading_using_volume_price_analysis_anna_coulling.pdf
    • https://cdn-cms.f-static.net/uploads/4420449/normal_6019dae896d39.pdf
    • http://streamsweets.com/543399058199k7mx.pdf
    • http://busimaderule.mywebcommunity.org/tilanulod.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://fuluxewamotate.atwebpages.com/keboxep.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000143e1.bin
84af00ec8446dd77ca92b0f812f72ce5c6e29b8b71732e03101f136077caf622
pdf-font-stream PDF embedded font (sfnt) at offset 0x143E1 5224 bytes
font_01_sfnt_off00015580.bin
fa38ae34d7c39e69524ec5cebfa938b9636df0ecd3d62a92965ec419b5d8fc4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x15580 11536 bytes
font_02_sfnt_off00017cdd.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x17CDD 4324 bytes