Malicious PDF — malware analysis report

Static analysis result for SHA-256 9331e35e3e2a42bd…

MALICIOUS

PDF

82.2 KB Created: 2021-03-02 14:22:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: c185259c2395a58404c7e8205e06285f SHA-1: 1b64ff03b2aa3663709f58cf4e29f2d5e2a9e3fc SHA-256: 9331e35e3e2a42bd07ec0f761d9e04742e3a053b1e72f042e9c7e5bc639c8175
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain and is presented in a context related to printer cartridges, suggesting a phishing lure. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it may contain or lead to malicious content.

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://mezovuduw.ru/123?utm_term=hp+photosmart+7760+print+cartridge+cradle+stuck PDF link annotation
    • http://abzac.me/adventure_island_game_for_windows_8w2bbj.pdfIn PDF document text
    • https://gimiduti.weebly.com/uploads/1/3/4/7/134711596/megewuzabiberogo.pdfIn PDF document text
    • http://politach.com/29893213625pbs4o.pdfIn PDF document text
    • http://bostpolamos.site/pojarizupiwou5fg6.pdfIn PDF document text
    • https://wesoxuzepa.weebly.com/uploads/1/3/4/3/134372623/ca1561c7.pdfIn PDF document text
    • http://kmplitka.shop/kepusuxusu65ir7.pdfIn PDF document text
    • http://fabulouss.space/casio_illuminator_watch_battery_size8mtsg.pdfIn PDF document text
    • http://reduslim-ordina.site/enforcer_keypad_change_codelk5a5.pdfIn PDF document text
    • http://zoo-taxi.site/tree_of_life_movie_interpretationdeq8o.pdfIn PDF document text
    • http://myirn.icu/mavezijobesuzufa2qoyn.pdfIn PDF document text
    • https://rajuvafawomok.weebly.com/uploads/1/3/4/4/134455823/7c4b74c735.pdfIn PDF document text
    • http://letnesil.xyz/new_elementary_mathematics_syllabus_d_2_solutions0g19q.pdfIn PDF document text
    • http://kpupnov.pro/ib_biology_ia_word_limitw0gn9.pdfIn PDF document text
    • https://zevugakarexavak.weebly.com/uploads/1/3/1/8/131857252/3983027.pdfIn PDF document text
    • http://copyrightsafetyhelps.com/gevifurefuxuxekon5dfr.pdfIn PDF document text
    • http://detonicinitalia.website/bible_commentaries_onlineuuifi.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/pazatuv/fc_barcelona_logo_vector.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/33353071987.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/64627703948.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/xojivuwujivovokubatuzo.pdfIn PDF document text
    • https://s3.amazonaws.com/zisulamisozoto/86054586004.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_off00010178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10178 5888 bytes
SHA-256: 95c5d2e384c268c8c2c7320487ab666d0fc929d36a37faf0aeef4d5da64377ef
font_01_sfnt_off0001155e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1155E 11000 bytes
SHA-256: bc5dbe5fec9e265deb0c2aabb93c27334307cdac3fbe8ccb2ffd0f3c2138c959

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