Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b4f30bcb68bc874…

MALICIOUS

PDF

72.3 KB Created: 2021-02-24 07:44:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b85837bc668eb8354af9b95d128cb66b SHA-1: 6a8babfcd0017f85678faab97dffa663ca44e3d8 SHA-256: 0b4f30bcb68bc87408aa31bae99f76722e44ee491bf0fb88eb2c1df190e09c49
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://seumenha.ru/wix?keyword=unity+moba+template PDF link annotation
    • http://dojegegitotebe.22web.org/safety_data_sheets_for_paint.pdfIn PDF document text
    • http://guitar.su/king_of_avalon_gift_codes_august_2016eoje.pdfIn PDF document text
    • https://cdn.sqhk.co/zimopaji/gf1ih6h/minecraft_education_edition_download_worlds.pdfIn PDF document text
    • http://macsk.space/plugins_ireport_para_netbeans_8._0._2tj7kr.pdfIn PDF document text
    • https://kigolakelo.weebly.com/uploads/1/3/1/3/131380934/b075e.pdfIn PDF document text
    • https://cdn.sqhk.co/nejisakatok/hhjggjh/82252292348.pdfIn PDF document text
    • https://wivozodibadire.weebly.com/uploads/1/3/0/7/130775536/ziravuzipo.pdfIn PDF document text
    • http://butomuzadizur.iblogger.org/jaxusiviriwodidefaleva.pdfIn PDF document text
    • https://cdn.sqhk.co/lewonuvaxu/BtKichh/christopher_s_footprints_child_care_center.pdfIn PDF document text
    • http://alteramaks.world/update_android_10_oppo_f5g5fzk.pdfIn PDF document text
    • http://6gusevshop.space/circe_institute_advent_guide3wdef.pdfIn PDF document text
    • http://vizit.store/copenhagen_card_guidebook9bk0n.pdfIn PDF document text
    • https://gefivogixofix.weebly.com/uploads/1/3/0/9/130969648/9404017.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://budunasetixap.epizy.com/lizavezepov.pdfIn PDF document text
    • http://zixugikel.rf.gd/rurone.pdfIn PDF document text
    • http://magisavupuwikiv.rf.gd/how_to_replace_samsung_a8_battery.pdfIn PDF document text
    • http://lisunamubeso.epizy.com/wedding_day_itinerary_for_guests_template.pdfIn PDF document text
    • http://zujazeku.epizy.com/pixodix.pdfIn PDF document text
    • http://suboxasolu.rf.gd/73478063097.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_off0000dd6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6D 4924 bytes
SHA-256: 23777d3e4951a42bf3dcdec4964e3ef8c8264b8884445ffd9359f1b3a63c1f1b
font_01_sfnt_off0000ee26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE26 10852 bytes
SHA-256: 0325cb50283803352c86d4032125a7c043f11c4b91ae46804ac1ddfda2760fe0