Malicious PDF — malware analysis report

Static analysis result for SHA-256 e24d2738c5f43236…

MALICIOUS

PDF

90.9 KB Created: 2021-04-04 02:04:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 2a2729d2153455e0ec04496717c85839 SHA-1: 0a0e9d9ead670c3e7cb7e5c1e1d7874c3b1ce25c SHA-256: e24d2738c5f4323609ae2267c6b8c7b36fe01b2de83206a19f3b1e6c98f84f5e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that contains an embedded URL disguised as a search result for a book. The URL points to a domain known for hosting malicious content and is likely intended to trick the user into downloading a further malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent.

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://xezojetit.ru/strik?utm_term=an+imperial+affliction+peter+van+houten+pdf+free+download PDF link annotation
    • http://sdfsdfsdf.shaketorch.com/momosimevuw.pdfIn PDF document text
    • https://cdn.sqhk.co/nufomewo/ge1hdjd/69706969803.pdfIn PDF document text
    • https://cdn.sqhk.co/zesojesiwi/sgehggd/flip_football_card_game_review.pdfIn PDF document text
    • https://cdn.sqhk.co/mojekuvugise/bieazy1/my_planet_earth_is_named_after.pdfIn PDF document text
    • https://cdn.sqhk.co/nivopekodi/iijahiv/53298988234.pdfIn PDF document text
    • https://cdn.sqhk.co/wezupobuwab/didSGhc/tezumukatodasokirakon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f846e3c-7573-4c67-8375-82c5c42f234c/35001138885.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/277f151d-689a-4351-b26f-d334389d8cf4/what_is_the_meaning_of_web_services.pdfIn PDF document text
    • https://s3.amazonaws.com/boxalewijim/vogojapogewo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b18c4442-eae9-4c74-8421-0796255480da/22982938526.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb9f13f9-e039-4760-867f-9fc3f3e7397c/11178161530.pdfIn PDF document text
    • https://s3.amazonaws.com/wujanozo/zematamopasixubu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8231dca-139e-4fc5-ab43-e25072be61d1/jirazaxatirax.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/bauhinia_variegata_medicinal_uses.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79633870-c9f7-4388-90c7-32ca57d1d939/dalovalopubozadokat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb3ac820-e13d-49e8-9bf0-559d256a2ac4/vodabubakiruxote.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b770c58-3e4d-4fe9-8300-aba407ed9405/2198981912.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d414902b-a0b3-4945-9fe3-c27acef9afd4/bible_english_standard_version.pdfIn PDF document text
    • https://s3.amazonaws.com/bupijila/personal_allowances_worksheet_child_tax_credit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52d60b55-53bc-4696-ae56-3cf67abbaf52/who_makes_huskee_lawn_mowers.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/factoring_quadratic_equations_with_leading_coefficients_worksheet.pdfIn PDF document text
    • http://juzatapanosuwi.rf.gd/cara_membuat_google_form_tanpa_login.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_off00012610.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12610 5356 bytes
SHA-256: 259db257e8fa0f78a9ac74dc3aabe071c8e1caff36d10a0436c1c302f61aa958
font_01_sfnt_off00013835.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13835 10900 bytes
SHA-256: 2a8758c2e7e6df7dcd8b66502772f65ca47c67498a2d7b609078c5f39960955e

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