Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e1061d6f5800a01…

MALICIOUS

PDF

77.6 KB Created: 2021-03-20 07:44:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e6b11b862a33918d7f6e36d18abea53e SHA-1: 416f45f984c727252162d90f518e3b21289bec54 SHA-256: 1e1061d6f5800a0129c16f986db93a54043df310295c6f5c930e76b45e524c54
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 phishing or trojan payload. The document body, though heavily obfuscated, contains text related to skin cancer prevention, likely a lure to direct the user to the embedded malicious URL. No scripts were extracted, but the presence of external URIs suggests the document's primary purpose is to redirect the user to a potentially harmful site.

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://dafemum.ru/award?keyword=prevencion+del+cancer+de+piel+pdf
    • http://zaxevef.getenjoyment.net/93525890765.pdf
    • https://cdn.sqhk.co/busumodofu/hjjNgis/bob_the_robber_4_hack_download.pdf
    • https://vaxofawaz.weebly.com/uploads/1/3/2/6/132682661/tabopevefim-waled-wuperigeman.pdf
    • http://repair-kompov.ru/lab_rats_2_walkthrough8lvv9.pdf
    • https://gudemulu.weebly.com/uploads/1/3/4/3/134387893/dcc25b43a5798.pdf
    • http://santecmb-sarl.com/dibuwatozomozipenifoduebgh0.pdf
    • https://zizovelet.weebly.com/uploads/1/3/1/3/131380569/poxonepulafavi.pdf
    • https://cdn.sqhk.co/bemapebe/gvige6s/86363168464.pdf
    • http://bristol-yalta.run/ledugunoziximevajitopib3cm3.pdf
    • http://mon-compte-cmb.best/television_interview_script_formatwj6b0.pdf
    • https://cdn.sqhk.co/lubigegek/oJigrge/rolling_color_cart.pdf
    • http://nextauto02.ru/sony_bdp-bx59_no_soundv1nrx.pdf
    • http://ipatovaalena.ru/the_golden_goblet_chapter_18roor.pdf
    • http://gazozasi.scienceontheweb.net/xitubesupemawimikuson.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://vebagakid.onlinewebshop.net/what_does_break_night_mean_in_golf.pdf
    • http://mobevawawe.rf.gd/1645197451.pdf
    • http://rinodinejepezoj.rf.gd/kujuwisuzofepuwa.pdf
    • http://tokejavopif.rf.gd/components_of_mise_en_scene.pdf
    • http://godemesefiw.epizy.com/multiplication_worksheets_grade_4_100_problems.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_off0000e3f9.bin
02ddc6f6442b9400bed3ee35602ee1db44bb74863d6cfbccff9d6865108530ea
pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F9 4740 bytes
font_01_sfnt_off0000f40e.bin
e68719b166a2b1961ab368a2f09ddca7d6f019d508ec4af04dbee52cfd5721aa
pdf-font-stream PDF embedded font (sfnt) at offset 0xF40E 11504 bytes
font_02_sfnt_off00011981.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x11981 4324 bytes