Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f019f0a836c5d21…

MALICIOUS

PDF

81.3 KB Created: 2021-03-18 23:00:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0e34defca9def58ed77b72581a2e274 SHA-1: 67fcc13705de9fd69465fd67a2e75fcbd813718a SHA-256: 1f019f0a836c5d21cb855ff659664936f4219e29f1f5f3774447b5e61af8a553
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that directs users to a site impersonating a pharmacy enrollment form, likely a phishing lure. No scripts were extracted, but the presence of external URIs suggests the document is designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://vilenefex.ru/123?utm_term=biologics+pharmacy+enrollment+form
    • http://microdigitalmeter.xyz/aambala_tamil_song_masstamilan2q3ex.pdf
    • http://vashobereg.com/autocad_2013_crack_xforce_keygenfzv0j.pdf
    • http://gidpopiteru.com/c_programming_compiler_for_windows_7_free_download2ou9i.pdf
    • http://xruhdfo.site/xalatittexb.pdf
    • http://bnatural.space/shop_vac_repair_manualmorgf.pdf
    • http://istlan.fun/99700626229043hu.pdf
    • https://cdn.sqhk.co/lufelumad/dhd4eeL/97355095800.pdf
    • https://cdn-cms.f-static.net/uploads/4404524/normal_5fea344e4c0b1.pdf
    • https://cdn-cms.f-static.net/uploads/4478408/normal_60417366b7e55.pdf
    • https://cdn.sqhk.co/pivugituxi/ZjhcgcS/natidab.pdf
    • http://instahelpforbusiness.com/what_does_30_represent_in_the_bible6fvis.pdf
    • https://cdn.sqhk.co/xasurila/gjhbgjR/4730794184.pdf
    • http://vvvvvvvvvvvvvvvvvvvvvb.xyz/format_for_employment_certificateiu5oj.pdf
    • http://sodahub.pro/widenesovirapewulcm4ec.pdf
    • https://static.s123-cdn-static.com/uploads/4417995/normal_60053bfdefe5a.pdf
    • https://cdn-cms.f-static.net/uploads/4385421/normal_6029789b6bdf6.pdf
    • http://storedubai.shop/3750660795ku1yj.pdf
    • http://everydays.space/super_mario_kart_racing_downloadhi89e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/semuxemakaw/lagu_armada_band_ful_album.pdf
    • https://s3.amazonaws.com/wiwamoxamo/siluzivul.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbfa.bin
6d5e6f6c624e958f819a7959e2673d938e2996c1acbe83fd630cdcce0faf68a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDBFA 5368 bytes
font_01_sfnt_off0000ee18.bin
ff3c6991bf60aa23328181cfef2152e228d2d04ee0abcfa4944b7976a089c782		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE18 10796 bytes
font_02_sfnt_off0001131c.bin
4ef9506ee11a349461550e6b437e3786686b598308a87786035880d16624999d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1131C 16060 bytes
font_03_sfnt_off000127b4.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x127B4 4324 bytes

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