Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ac7717ae93b92b1…

MALICIOUS

PDF

71.7 KB Created: 2021-02-15 10:45:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 80d655ad77902dc367608bcc7fad1620 SHA-1: 7e27a93eb28c89faab4e3bc162f626b84148aa48 SHA-256: 5ac7717ae93b92b19d29a51f75e10d3a9da5355a5e304d125b937edf162f6243
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jacksth.ru/wix?keyword=kaibab+deer+population+lab+answer+key PDF link annotation
    • http://chebsvet.ru/84589292189smz3x.pdfIn PDF document text
    • https://cdn.sqhk.co/jefapukawore/dhierAA/46508810496.pdfIn PDF document text
    • https://cdn.sqhk.co/sorubajuzoxe/ihdCjj9/bitcoin_cash_wallet._buy_bch_coins_freewallets.pdfIn PDF document text
    • https://cdn.sqhk.co/gugapedulob/ePrgige/ninojow.pdfIn PDF document text
    • https://cdn.sqhk.co/torevebeti/ggj0Shg/turbo_driving_racing_3d_mod_download.pdfIn PDF document text
    • https://cdn.sqhk.co/vomisape/j7RT5lU/gas_price_at_costco_calgary_today.pdfIn PDF document text
    • https://cdn.sqhk.co/safubuguva/jLgifNc/4816201744.pdfIn PDF document text
    • http://pigopivelar.iblogger.org/wubefawefiwivun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420020/normal_600d78d2df364.pdfIn PDF document text
    • https://cdn.sqhk.co/gotakavapu/gfXjgd5/romancing_saga_2_achievement_guide.pdfIn PDF document text
    • http://ca-manalapan.space/xaridilemiviwexadot3xqzv.pdfIn PDF document text
    • https://cdn.sqhk.co/jemitaso/dLahjen/manic_panic_alien_grey_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/fovomesit/hPhiShe/galaxy_shooting_ever_wingman.pdfIn PDF document text
    • https://cdn.sqhk.co/dekavaka/ioZgdv5/pocket_troops_tactical_rpg_mod_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452594/normal_5ff66ceb26039.pdfIn PDF document text
    • http://femusawar.iblogger.org/online_drafting_paper_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375885/normal_600c4a7c7fe02.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zosajirigo.rf.gd/76807012140.pdfIn PDF document text
    • http://kusegewamuzazod.epizy.com/pazekazubuloku.pdfIn PDF document text
    • http://zinamasab.epizy.com/agni_nakshatram_tamil_movie.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_off0000dc11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC11 5320 bytes
SHA-256: e49d25b28fee59ca7bb76cb5b8216280a7652d18f11f390a32cf20a7b1abcf88
font_01_sfnt_off0000ee41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE41 10276 bytes
SHA-256: d39e51e55edf84c5bd91597f1be490ad48bde495b4e5a762db5505b64b27120a