Malicious PDF — malware analysis report

Static analysis result for SHA-256 52e92244d1aae9f5…

MALICIOUS

PDF

80.6 KB Created: 2021-05-10 13:06:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 19b0365747ec7f15b87200ed6a9aae01 SHA-1: 7a43a3c79f59367324f6f055885d17279c67ac26 SHA-256: 52e92244d1aae9f5b5240213128b72642d5a23cb8dec46e6a4aab750a46c0da6
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to movie search terms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jottigo.ru/strik?utm_term=lost+at+sea+movies+2018 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454677/normal_603e39b47de1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500678/normal_5fdb3b5416cde.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369302/normal_5ffba10a88725.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464735/normal_6062bd4322d0b.pdfIn PDF document text
    • https://cdn.sqhk.co/rapawaferew/yiiBds3/55874513595.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426270/normal_6042c89d0b7fc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386591/normal_5fca578a2471a.pdfIn PDF document text
    • https://cdn.sqhk.co/miloxuso/eOhCIgi/funny_video_for_whatsapp_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366668/normal_6047e38fba0d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454967/normal_5fcf204b3d8bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385435/normal_605ef7917c2c2.pdfIn PDF document text
    • https://cdn.sqhk.co/wogirujut/c9hgbjc/draw_rider_plus_apk_9._4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409627/normal_606a32b6c91f6.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/tolivajupeku/cinta_luar_biasa_andmesh_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/96940787079.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/pwc_guide_to_carve_out_financial_statements.pdfIn PDF document text
    • https://s3.amazonaws.com/xanunafojuloki/thumbs_up_meme_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64a4b497-f513-4510-9bfd-c1fd73c903ba/la_familia_de_pascual_duarte_summary_by_chapter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c162a8d3-b54a-4a53-bfed-93127361c08b/what_is_the_theme_of_the_book_the_fault_in_our_stars.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3264fa5c-426e-4d9a-b5a0-29f1e812404e/vamezexubi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ba29856-1405-46dc-b5d0-80971cc0f030/what_time_is_jupiter_saturn_conjunction_2020_in_california.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bd43657-309f-4be2-b1dc-f4cc0c7f0039/jegasavotowolujefoku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d666deab-e0b7-4726-b87a-cec18aa4aa48/can_you_air_fry_a_whole_turkey.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27e7be78-c58b-4f47-b888-35b44be4719f/quote_about_the_sun_setting.pdfIn PDF document text
    • https://s3.amazonaws.com/nemafu/bewars_movie_video_songs_free.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_off0000fc58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC58 5224 bytes
SHA-256: 4de253d0d809277eb73fddbec2e91f1f838898f0fe9bcdbcc84d099a12fc489f
font_01_sfnt_off00010e1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E1A 11064 bytes
SHA-256: 0adbc9872d37f6ecfeec94e9ae3773ce0294f3ad89f07ac5d1105aaac02f0220

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