Malicious PDF — malware analysis report

Static analysis result for SHA-256 06fad523725f906e…

MALICIOUS

PDF

83.8 KB Created: 2021-03-28 12:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fb66bbf6b786e5ed5e719f462ab0e6e1 SHA-1: 824a8bd295e19c69c3ed17cd10c0f831d46189b4 SHA-256: 06fad523725f906e7debacf87447e02d5139510a47042b206a19ff8cd63f5229
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that points to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF as malicious with high confidence. The presence of embedded URLs and the nature of the detection suggest this file is part of a phishing campaign or a malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jumiwimov.ru/strik?utm_term=how+long+does+it+take+to+mobilize+an+army
    • https://cdn.sqhk.co/gabisolovima/hiihihc/megarujeredabogavudakelak.pdf
    • http://lnstagram-helps-contact.com/sigegulalilu7mef7.pdf
    • https://cdn-cms.f-static.net/uploads/4450138/normal_604cfd98231f4.pdf
    • http://carinsusa.info/spectrum_math_workbook_grade_8_free92cvz.pdf
    • https://vefonero.weebly.com/uploads/1/3/1/0/131070196/bakazufakazotiz.pdf
    • https://cdn-cms.f-static.net/uploads/4409819/normal_60140587e42aa.pdf
    • https://cdn-cms.f-static.net/uploads/4458390/normal_602e38be8347d.pdf
    • https://cdn.sqhk.co/puxedimuwo/dipCfZ9/gafepexebapubuzegusuw.pdf
    • https://vuzowukuz.weebly.com/uploads/1/3/0/8/130814197/jipakemonunatimed.pdf
    • http://onlinetiser.website/vampire_diaries_merchandise_hoodie855tu.pdf
    • https://famixarusefon.weebly.com/uploads/1/3/4/3/134396739/5b8548f17ca67b7.pdf
    • https://wuwiragirek.weebly.com/uploads/1/3/0/8/130874366/38c18f.pdf
    • http://luminar4-download.xyz/cervical_screening_guidelines_2016nf9wd.pdf
    • https://cdn.sqhk.co/tojegaxamox/drjbEhg/17126771405.pdf
    • http://waguzeb.66ghz.com/keynote_intermediate_student_s_book_answers.pdf
    • https://cdn-cms.f-static.net/uploads/4490917/normal_5fd905c8db412.pdf
    • http://soldatskaya6.ru/the_best_free_daw_for_androidwjpn9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zupenafud/wowizuvafanokejija.pdf
    • http://felepenedebopus.epizy.com/hr_interview_questions_and_answers_free_download.pdf
    • http://vifowenukag.rf.gd/best_norwegian_to_english_translation.pdf
    • https://s3.amazonaws.com/piradi/beautiful_disaster_movie_streaming.pdf
    • https://s3.amazonaws.com/gulapore/shopping_list_template_for_preschool.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010a2e.bin
d54d539bf38da26674b713d2e39b3a6dce92feeae0cdf511840830f8174b2d84
pdf-font-stream PDF embedded font (sfnt) at offset 0x10A2E 5556 bytes
font_01_sfnt_off00011d25.bin
58edb5c4a4cd817738ef624cebde84463bccacebef51c1195227c704a4c615bf
pdf-font-stream PDF embedded font (sfnt) at offset 0x11D25 10988 bytes