Malicious PDF — malware analysis report

Static analysis result for SHA-256 a63e60a3d50e9b13…

MALICIOUS

PDF

96.8 KB Created: 2021-03-31 09:34:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a6c549d8884e626fa890b2fca5f47b2e SHA-1: cf619f029bca71d13ecdda174b49cc6962cd079c SHA-256: a63e60a3d50e9b13be447dcfd3cd69e077ada6ea2db6a3fb704761fed784f753
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://bologen.ru/123?utm_term=animation+studio+website+templates PDF link annotation
    • https://cdn.sqhk.co/dufukeraj/egjcX3U/xosumobaxusumone.pdfIn PDF document text
    • https://cdn.sqhk.co/pixorikibam/Shb0ij3/water_pipe_glass_bong_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/vosiwuli/RSxaZJA/30073094317.pdfIn PDF document text
    • http://pirojibanenuzi.getenjoyment.net/jaluxarinukizapor.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvojeve/eggjfgf/pais_presentes_pais_ausentes.pdfIn PDF document text
    • https://cdn.sqhk.co/zebimapajod/lma5jhi/fruit_slicing_game_ipad.pdfIn PDF document text
    • https://cdn.sqhk.co/boguzivipel/t9wji1r/zebasigitesabajimare.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/06975049-3029-49f5-9ad5-5ecaa6bd8274/botategi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ea6c02a-1765-45db-8ea2-aef622f8dea1/into_the_abyss_book_anthony_david.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/bareilly_college_registration_form_last_date.pdfIn PDF document text
    • http://murapimopavopa.myartsonline.com/call_of_cthulhu_7th_edition_core_rulebook.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/boss_rc_300_manual_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/how_to_find_the_half_life_of_an_element.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/guwudufelugojalakufu.pdfIn PDF document text
    • http://bemuvarewu.onlinewebshop.net/verbos_pasado_en_ingles.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e5640ba-9c14-4c73-ad65-d00a48ab1df6/how_does_ros_die_in_mi5.pdfIn PDF document text
    • https://s3.amazonaws.com/tamovagag/68079946311.pdfIn PDF document text
    • https://s3.amazonaws.com/wovisak/bhakti_gana_dj_ing_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/webosinipiwirojuxez.pdfIn PDF document text
    • http://panexorumilogim.myartsonline.com/best_oral_b_toothbrush_heads_for_braces.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000133f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133F9 5112 bytes
SHA-256: d457fd42152316b8c68c20cbb434fc88ff254b65dbdef1ac3452e053bda8c7a5
font_01_sfnt_off00014542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14542 10240 bytes
SHA-256: b2a5e18271dbce332d097d178748de5b6abfb11be6e7ec2da7c88f22b354ec67
font_02_sfnt_off000167c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x167C3 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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